Give the interpreter real Celtic Cross meanings and --format/--lang support

- guidance.c now prints last, after the full spread; both it and main.c's new Celtic Cross readout pull real Waite card meanings via tarot_data.c instead of just naming cards. - interpreter-cli gains --format text|html|json and --lang en|de, matching deck-engine - required linking engine/src/tarot_data.c and i18n.c into the interpreter binary (a narrow, documented exception to its earlier "no engine .c files" policy) and writing German translations for narrative.c's/guidance.c's own text.
2026-07-11 19:39:30 +02:00
parent 41422adf98
commit 1662d550c7
23 changed files with 1894 additions and 296 deletions
@@ -5,13 +5,12 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 ## Project goal

 A Pebble smartwatch app that produces a daily personalized tarot (Celtic
-Cross) and astrology (natal chart + transits) reading. Currently only the
-**core engine** exists: a plain-C, dependency-free library plus a
+Cross) and astrology (natal chart + transits) reading. This repository
+holds the **core engine**: a plain-C, dependency-free library plus a
 standalone CLI binary (`dist/deck-engine`) that can be built and run
-without any Pebble SDK or emulator. The watchapp itself (Pebble C/UI,
-resource packs) has not been started yet — the engine is deliberately
-built so it can be linked straight into it later without rework (see
-"Portability to the watch" below).
+without any Pebble SDK or emulator, deliberately built so it links
+straight into Pebble C/UI watch code without rework (see "Portability to
+the watch" below).

 ## Build & run

@@ -99,12 +98,11 @@ deck_in_a_dash/
 ### Data flow / the real API

 `reading_generate(seed, birth, utc_moment, &DailyReading)` in
-`reading.h` is the single entry point that matters — it's what the
-watchapp will call once it exists. It populates a plain struct
-(`NatalChart` + `DailyTransits` + `CelticCrossSpread`) that the caller
-walks directly to build a UI. `reading_print_text`/`reading_print_html`
-are desktop-only conveniences for inspecting a reading (used by the CLI);
-the watchapp will never call them.
+`reading.h` is the single entry point that matters — the real API
+surface. It populates a plain struct (`NatalChart` + `DailyTransits` +
+`CelticCrossSpread`) that a caller walks directly to build a UI.
+`reading_print_text`/`reading_print_html` are desktop-only text/HTML
+renderers of that same struct, used by the CLI.

 ### Determinism (`rng.c`)

@@ -186,44 +184,55 @@ translate the values — no source changes needed, `make` picks up any

 `i18n_load` uses stdio (`fopen`/`fgets`), so — like `main.c` and
 `reading_print_*` — it's a desktop-only entry point; `i18n_get` itself
-is a pure fixed-size-array lookup with no heap allocation, so it's fine
-to port to the watch once it has its own (non-file-based) way to
-populate the catalog, e.g. from a compiled-in resource.
+is a pure fixed-size-array lookup with no heap allocation, so it links
+into the watch as-is given a non-file-based way to populate the catalog,
+e.g. from a compiled-in resource.

 ### Portability to the watch

 `rng`, `tarot`, `tarot_data`, `astro`, `i18n_get`, and `reading_generate`
-are kept free of `stdio`/CLI assumptions specifically so they can link
-into the Pebble watchapp unchanged later. Only `reading_print_text`/
-`_html` (text formatting), `main.c` (CLI arg parsing), and `i18n_load`
-(reads a file from disk) are desktop-only and won't port as-is.
+are kept free of `stdio`/CLI assumptions specifically so they link into
+the Pebble watchapp unchanged. Only `reading_print_text`/`_html` (text
+formatting), `main.c` (CLI arg parsing), and `i18n_load` (reads a file
+from disk) are desktop-only and don't port as-is.

 ## Interpretation (`interpreter/`)

 A second, separate top-level module and **its own binary**
 (`dist/interpreter-cli`, sibling to `dist/deck-engine`) that scores *how
-significant a day's transits are* and, for each of the top items, prints
-a short narrative sentence about what that transit classically means —
-the first piece of a larger "turn the raw reading into an actual
-narrative" effort described in project chat history; the Celtic Cross
-spread itself isn't woven into that narrative yet (see
-`docs/reading.md`). `deck-engine` itself is deliberately unchanged by
-this beyond gaining `--format json`; the two binaries compose over that
-JSON, never by linking together:
+significant a day's transits are*, prints a short narrative sentence for
+each of the top items about what that transit classically means, reads
+out the full Celtic Cross spread with every card's meaning, and finally
+prints guidance tying the day's top transit to the spread's
+Attitude/Outcome cards; see `docs/reading.md`. Like `deck-engine`, it
+supports `--format text|html|json` and `--lang <code>`/`--i18n-dir
+<path>` for its own output - see `main.c`'s bullets below for both.
+`deck-engine` itself is deliberately unchanged beyond gaining `--format
+json`; the two binaries compose over that JSON, never by linking
+`reading_generate()` or any I/O function together:

 ```bash
 make          # -> dist/deck-engine (unchanged; --format json is new) and dist/interpreter-cli
 make test     # builds and runs both engine/tests/*_test.c and interpreter/tests/*_test.c

-dist/deck-engine ... --format json | dist/interpreter-cli
+dist/deck-engine ... --format json | dist/interpreter-cli [--format text|html|json] [--lang <code>]
 # or: dist/deck-engine ... --format json > reading.json && dist/interpreter-cli reading.json
 # or, for daily use (OS clock + user.properties, same as run-engine.sh):
-dist/run-interpreter.sh
+dist/run-interpreter.sh [text|html|json] [lang]
 ```

-The root `Makefile` builds both from one invocation, but keeps them as
-separate compilation units throughout — no object file is ever shared
-between the two binaries (see the next bullet).
+Note `--lang` means something different on each side of the pipe:
+`deck-engine`'s own `--lang` (if passed at all) is irrelevant here, since
+`--format json` is deliberately language-independent (see
+`docs/input-output-format.md`); `dist/interpreter-cli --lang` controls
+*its own* text/html/json output language, independently.
+
+The root `Makefile` builds both from one invocation, and keeps them
+independent compilation units for everything ephemeris/tarot-draw/
+random-related — the one exception is `engine/src/tarot_data.c` and its
+own `i18n.c` dependency (pure, deterministic card/position lookup text,
+see `INTERP_TAROT_TEXT_OBJS` in the `Makefile`), whose object files are
+built once and linked into *both* binaries.

 - `interpret_daily_reading(reading, &out)` (`significance.h/.c`) scores
  every aspect in `reading->transits.aspects[]`, keeps the **top 5** by
@@ -234,17 +243,15 @@ between the two binaries (see the next bullet).
  purely so callers can print the level as a rank, e.g. `main.c`'s
  `"%s (%d/%d)"` → `"Notable (2/4)"` — `interp.day_level + 1` out of
  `DAY_SIGNIFICANCE_COUNT`. `interpretation_deserves_framing()` is true
-  only at `DAY_MAJOR` — the intended hook for giving the Celtic Cross
-  reading a "this matters" intro sentence naming `top_items[0]` on days
-  that earn it; that rendering doesn't exist yet, `main.c`'s report is
-  plain text only.
+  only at `DAY_MAJOR` — `main.c` uses it solely to decide whether to
+  print an extra "worth a deeper Celtic Cross look" line; it's not a
+  gate on `guidance.c` (below), which runs on every day level.
 - Score = `transiting-planet weight (slow/outer planets score higher) ×
  orb tightness (1.0 = exact, ~0 = at the edge) × natal-luminary bonus
  (transits to natal Sun/Moon score higher than to other planets)`. The
  weights and the `DAY_QUIET`/`DAY_NOTABLE`/`DAY_SIGNIFICANT`/`DAY_MAJOR`
  thresholds in `significance.c` are hand-tuned, not derived from
-  anything physical — expect to retune them once real readings are
-  compared against how "major" a day actually feels.
+  anything physical.
 - **`narrative.c`/`narrative.h`** supplies `main.c`'s one-sentence
  description printed under each top item, condensed from Sepharial's
  *Transits and Planetary Periods* (1920, public domain —
@@ -267,7 +274,81 @@ between the two binaries (see the next bullet).
  source (same status as the sign/aspect names already in `astro.c`).
  Passing a house outside 1-12 (the same "no data" sentinel `reading_io.c`
  uses elsewhere) omits that framing and prints the planet's narrative on
-  its own.
+  its own. Every string here (`k_narratives[]`'s `base`/`harmonious`/
+  `discordant`, `k_house_area[]`, and the "In matters of ..." framing
+  template itself) is looked up via `i18n_get()` under `narrative.*` keys
+  before falling back to this English text - `engine/i18n/de.lang` has a
+  full German translation under the same keys.
+- `main.c` calls `i18n_load()` once at startup (same pattern as
+  `engine/src/main.c`, including the same `default_i18n_path()` helper,
+  duplicated rather than shared since the two binaries are never linked
+  - see the compilation-units bullet above) before producing any output,
+  so every `i18n_get()` call anywhere in the interpreter - not just
+  `tarot_data.c`'s, but `narrative.c`'s/`guidance.c`'s own (below) -
+  respects `--lang`. `--format text`'s report is printed in a fixed
+  order: significance level → top significant transits (each with its
+  `narrative.c` sentence) → the full Celtic Cross spread
+  (`print_celtic_cross_text()`, every position in Waite's own drawing
+  order, each with its card, orientation, position description, and
+  card meaning — via the real `tarot_position_name()`/`tarot_card_name()`/
+  `tarot_position_description()`/`tarot_card_meaning()` accessors, not a
+  duplicated table, since `tarot_data.c` is linked into this binary) →
+  `guidance.c`'s paragraph, deliberately printed **last**, so it reads
+  as the closing takeaway after the reader has seen the full spread it
+  references. `--format html` mirrors `deck-engine`'s own HTML styling
+  and reuses the same `img/<file>` card-art convention (`tarot_card_
+  image_file()`); `--format json` embeds the same localized narrative/
+  guidance prose as `--format text` (in whatever `--lang` was loaded)
+  *alongside* stable, language-independent slugs (`transiting_planet`,
+  `aspect`, `card`, `position`, etc., reusing the same small local slug
+  tables `reading_io.c` needs for parsing) — a deliberate departure from
+  `reading_print_json`'s "slugs only, never prose" policy (next bullet),
+  justified because rendering that prose *is* this module's job, unlike
+  `deck-engine`'s JSON which is purely a machine interchange format.
+  `narrative_print()`/`guidance_print()` only know how to write to a
+  `FILE *`, so `--format json` captures their output into a heap string
+  via POSIX `open_memstream()` (`capture_narrative()`/`capture_guidance()`)
+  rather than changing either module's public API just for this one
+  caller.
+- **`guidance.c`/`guidance.h`** is the combined-storytelling piece: it
+  ties `interp->top_items[0]` (the day's single most significant
+  transit) to the Celtic Cross spread and prints a short "how to meet
+  the day" paragraph on *every* day — `main.c` calls it unconditionally
+  after every `interpret_daily_reading()`, with no `day_level` gate. The
+  core guidance keys off two things: the top transit's aspect character
+  (harmonious/discordant/neutral, same classification `narrative.c`
+  uses) crossed with whether the spread's *Attitude* position — Waite's
+  "Himself: his position or attitude in the circumstances", the
+  position most directly about how the reader is meeting the day — fell
+  upright or reversed (3 × 2 = 6 combinations); this text stays valid
+  regardless of the day's intensity. What *does* vary with
+  `interp->day_level` is only the sentence introducing the top transit
+  (`k_intro[DAY_SIGNIFICANCE_COUNT]`, one `%s` each) — e.g. "With Saturn
+  as today's dominant influence" on `DAY_MAJOR` vs. "Saturn is only
+  faintly active today, but for what it's worth" on `DAY_QUIET`. A day
+  with no aspects in orb at all (`top_item_count == 0`, always
+  `DAY_QUIET`) has no transiting planet to introduce, so it falls back
+  to `k_no_transit_stance`, keyed on the Attitude card's orientation
+  alone. All of this guidance text is original, written for this
+  project, since neither Waite nor Sepharial discuss combining astrology
+  and tarot. The paragraph also names the Attitude and Outcome cards and
+  states their actual meaning via `tarot_card_meaning()` (e.g. what
+  Wheel of Fortune reversed means) — the real Waite text, not a
+  duplicated table, for the same reason as `print_celtic_cross_text()`
+  above. Every string here (stance/intro/no-transit/label text, plus a
+  `guidance.planet.*` table used only for the intro sentence's planet
+  name - separate from `body.*` because "the Sun"/"the Moon" take a
+  definite article the other eight planets don't, in both English and
+  German) is looked up via `i18n_get()` under `guidance.*` keys before
+  falling back to this English text - `engine/i18n/de.lang` has a full
+  German translation. The German `guidance.intro.*` templates are
+  deliberately phrased so the planet name placeholder is always the
+  sentence's grammatical subject (nominative case) across all four day
+  levels, sidestepping the case-agreement problems a naive word-for-word
+  translation of the English templates would hit (e.g. "with Saturn"
+  needs dative in German, but "Saturn is only faintly active" needs
+  nominative - the four German templates are worded so the placeholder
+  never needs to change case).
 - **`reading_print_json`** (`engine/src/reading.c`) is the wire format:
  the full `DailyReading` (natal, transits, spread), using the
  language-independent `astro_*_slug()`/`tarot_*_slug()` accessors
@@ -283,31 +364,37 @@ between the two binaries (see the next bullet).
  and fills a `DailyReading` with those (used for scoring), plus
  `"natal"."bodies"`/`"transits"."bodies"` (each body's sign + whole-sign
  house, via `parse_bodies()` — used only for the sign/house context
-  `main.c` prints alongside each significant event, never for scoring).
-  `"spread"` is left zeroed entirely - nothing reads it. An aspect naming
-  a planet/aspect-type slug it doesn't recognize, or a document missing
-  `"transits"."aspects"` entirely (as opposed to a present-but-empty
-  array, which is a valid "no aspects today"), makes the whole load fail;
-  by contrast an unrecognized body slug or missing `house` inside
-  `"bodies"` is silently skipped (that body's `house` stays `0`, an
-  invalid whole-sign house number used as "no data" - `main.c` checks for
-  it before printing sign/house), since that's supplementary display
-  context rather than something scoring depends on.
- **Deliberately header-only dependency on the engine, throughout**:
-  `significance.h`/`reading_io.h`/`narrative.h` `#include` engine headers
-  (`reading.h`/`astro.h`) for the struct/enum *definitions*, but the root
-  `Makefile` never compiles or links any engine `.c` file (or the
-  vendored Astronomy Engine) into the interpreter's binary or tests —
-  every
-  test in `interpreter/tests/` runs against hand-built JSON text or
-  hand-built `DailyReading` values, with no real ephemeris/tarot-draw
-  call involved anywhere. Consequently `reading_io.c` (planet/aspect/sign
-  slugs) and `main.c` (planet/aspect/sign display names) each duplicate a
-  small local table rather than linking `astro.c` to reuse its own -
-  keep those in sync if the engine's slugs/names ever change.
- Only `Aspect`s compete for the top 5 so far (`SignificantItemKind` is
-  currently just `ITEM_ASPECT`); moon phase and house ingresses are
-  candidate future item kinds but aren't scored yet.
+  `main.c` prints alongside each significant event, never for scoring)
+  and `"spread"."positions"` (each position's card + reversed flag, via
+  `parse_spread()` — used by `main.c`'s full Celtic Cross readout and by
+  `guidance.c`'s Attitude/Outcome framing, never for scoring). An
+  aspect naming a planet/aspect-type slug it doesn't recognize, or a
+  document missing `"transits"."aspects"` entirely (as opposed to a
+  present-but-empty array, which is a valid "no aspects today"), makes
+  the whole load fail; by contrast an unrecognized body/card/position
+  slug, a missing `house` inside `"bodies"`, or a missing `"spread"` key
+  entirely is silently skipped/zeroed (`main.c` checks for the body
+  "no data" sentinel before printing sign/house), since all of that is
+  supplementary display context rather than something scoring depends
+  on.
+- **Mostly header-only dependency on the engine**: `significance.h`/
+  `reading_io.h`/`narrative.h`/`guidance.h` `#include` engine headers
+  (`reading.h`/`astro.h`/`tarot.h`) for the struct/enum *definitions*,
+  and the root `Makefile` never compiles or links `astro.c`, `tarot.c`,
+  `rng.c`, `reading.c`, or the vendored Astronomy Engine into the
+  interpreter's binary or tests — every test in `interpreter/tests/`
+  runs against hand-built JSON text or hand-built `DailyReading`/
+  `DailyInterpretation` values, with no real ephemeris/tarot-draw call
+  involved anywhere. Consequently `reading_io.c` (planet/aspect/sign/
+  card/position slugs) and `main.c` (planet/aspect/sign display names)
+  each duplicate a small local table rather than linking `astro.c` to
+  reuse its own - keep those in sync if the engine's slugs ever change.
+  `tarot_data.c`/`i18n.c` are the one exception, actually linked in (see
+  above) - so card/position *names and meanings* are never duplicated;
+  only the slugs `reading_io.c` needs for JSON parsing (which
+  `tarot_data.c` doesn't expose a reverse lookup for) still are.
+- Only `Aspect`s compete for the top 5 (`SignificantItemKind` is
+  currently just `ITEM_ASPECT`).

 ## Licensing

@@ -325,3 +412,14 @@ between the two binaries (see the next bullet).
  Sepharial's *Transits and Planetary Periods* (1920, public domain —
  `res/Transits_and_Planetary_Periods.pdf`), except the Moon and Pluto
  entries, which are original (see narrative.c's own comment for why).
+- Guidance text in `interpreter/src/guidance.c`: original, written for
+  this project — no source to condense from, since neither Waite nor
+  Sepharial discuss combining astrology and tarot. (The Attitude/Outcome
+  card meanings that same paragraph quotes are Waite's own text via
+  `tarot_card_meaning()`, covered by the `tarot_data.c` bullet above,
+  not original text.)
+- `engine/i18n/de.lang`'s `narrative.*`/`guidance.*` entries are original
+  German translations of the above two files' text, made for this
+  project — same status as `de.lang`'s card/spread text (not taken from
+  a specific published German edition of Sepharial, since none exists
+  for this condensed, project-specific wording anyway).
@@ -36,29 +36,45 @@ ENGINE_TEST_BINARY := $(BUILD_DIR)/smoke_test

 # ---- interpreter ----

-# Only ever compiles this module's own sources - significance.h/
-# reading_io.h reach into engine/src/ for struct/enum *definitions*
-# (plain #includes), but no engine/src/*.c (or the vendored Astronomy
-# Engine) is compiled or linked here. That's what keeps this module (and
-# its tests) independent of the engine's actual ephemeris/tarot-draw
+# Mostly compiles only this module's own sources - significance.h/
+# reading_io.h/narrative.h reach into engine/src/ for struct/enum
+# *definitions* (plain #includes) without linking any engine/src/*.c (or
+# the vendored Astronomy Engine). That's what keeps those modules (and
+# their tests) independent of the engine's actual ephemeris/tarot-draw
 # implementation - see significance.c's and reading_io.c's own comments
 # for why each duplicates a small table instead of linking astro.c.
+#
+# The one deliberate exception is engine/src/tarot_data.c (card/position
+# names and Waite meaning text) and its own i18n.c dependency: both are
+# pure, deterministic lookup tables with no ephemeris, no randomness, and
+# (since the interpreter never calls i18n_load) no file I/O either, so
+# linking them doesn't compromise interpreter/tests/'s "no real
+# ephemeris/tarot-draw call" independence - it just avoids duplicating
+# ~40 short strings of Waite's own card text a second time for
+# main.c's/guidance.c's full-spread readout. See CLAUDE.md.
 INTERP_SRC_DIR  := interpreter/src
 INTERP_TEST_DIR := interpreter/tests

 INTERP_LIB_SRCS := $(INTERP_SRC_DIR)/significance.c $(INTERP_SRC_DIR)/json.c \
-                   $(INTERP_SRC_DIR)/reading_io.c $(INTERP_SRC_DIR)/narrative.c
+                   $(INTERP_SRC_DIR)/reading_io.c $(INTERP_SRC_DIR)/narrative.c \
+                   $(INTERP_SRC_DIR)/guidance.c
 INTERP_LIB_OBJS := $(patsubst %.c,$(OBJ_DIR)/%.o,$(INTERP_LIB_SRCS))
 INTERP_MAIN_OBJ := $(OBJ_DIR)/$(INTERP_SRC_DIR)/main.o

+# Shared with the engine build (same source, same flags - see the
+# comment above); reused as-is rather than compiled twice.
+INTERP_TAROT_TEXT_OBJS := $(OBJ_DIR)/$(ENGINE_SRC_DIR)/tarot_data.o $(OBJ_DIR)/$(ENGINE_SRC_DIR)/i18n.o
+
 INTERP_BINARY := $(DIST_DIR)/interpreter-cli

 SIGNIFICANCE_TEST_OBJ := $(OBJ_DIR)/$(INTERP_TEST_DIR)/significance_test.o
 JSON_TEST_OBJ         := $(OBJ_DIR)/$(INTERP_TEST_DIR)/json_test.o
 NARRATIVE_TEST_OBJ    := $(OBJ_DIR)/$(INTERP_TEST_DIR)/narrative_test.o
+GUIDANCE_TEST_OBJ     := $(OBJ_DIR)/$(INTERP_TEST_DIR)/guidance_test.o
 SIGNIFICANCE_TEST_BIN := $(BUILD_DIR)/significance_test
 JSON_TEST_BIN         := $(BUILD_DIR)/json_test
 NARRATIVE_TEST_BIN    := $(BUILD_DIR)/narrative_test
+GUIDANCE_TEST_BIN     := $(BUILD_DIR)/guidance_test

 .PHONY: all test clean images i18n scripts

@@ -68,7 +84,7 @@ $(ENGINE_BINARY): $(ENGINE_OBJS) $(ENGINE_MAIN_OBJ)
 	@mkdir -p $(DIST_DIR)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDLIBS)

-$(INTERP_BINARY): $(INTERP_LIB_OBJS) $(INTERP_MAIN_OBJ)
+$(INTERP_BINARY): $(INTERP_LIB_OBJS) $(INTERP_MAIN_OBJ) $(INTERP_TAROT_TEXT_OBJS)
 	@mkdir -p $(DIST_DIR)
 	$(CC) $(CFLAGS) -o $@ $^

@@ -109,11 +125,12 @@ scripts:
 		cp $(ENGINE_SCRIPTS_DIR)/user.properties.template $(DIST_DIR)/user.properties; \
 	fi

-test: $(ENGINE_TEST_BINARY) $(SIGNIFICANCE_TEST_BIN) $(JSON_TEST_BIN) $(NARRATIVE_TEST_BIN)
+test: $(ENGINE_TEST_BINARY) $(SIGNIFICANCE_TEST_BIN) $(JSON_TEST_BIN) $(NARRATIVE_TEST_BIN) $(GUIDANCE_TEST_BIN)
 	./$(ENGINE_TEST_BINARY)
 	./$(SIGNIFICANCE_TEST_BIN)
 	./$(JSON_TEST_BIN)
 	./$(NARRATIVE_TEST_BIN)
+	./$(GUIDANCE_TEST_BIN)

 $(ENGINE_TEST_BINARY): $(ENGINE_OBJS) $(ENGINE_TEST_OBJ)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDLIBS)
@@ -124,7 +141,11 @@ $(SIGNIFICANCE_TEST_BIN): $(OBJ_DIR)/$(INTERP_SRC_DIR)/significance.o $(SIGNIFIC
 $(JSON_TEST_BIN): $(OBJ_DIR)/$(INTERP_SRC_DIR)/json.o $(OBJ_DIR)/$(INTERP_SRC_DIR)/reading_io.o $(JSON_TEST_OBJ)
 	$(CC) $(CFLAGS) -o $@ $^

-$(NARRATIVE_TEST_BIN): $(OBJ_DIR)/$(INTERP_SRC_DIR)/narrative.o $(NARRATIVE_TEST_OBJ)
+$(NARRATIVE_TEST_BIN): $(OBJ_DIR)/$(INTERP_SRC_DIR)/narrative.o $(INTERP_TAROT_TEXT_OBJS) $(NARRATIVE_TEST_OBJ)
+	$(CC) $(CFLAGS) -o $@ $^
+
+$(GUIDANCE_TEST_BIN): $(OBJ_DIR)/$(INTERP_SRC_DIR)/guidance.o $(OBJ_DIR)/$(INTERP_SRC_DIR)/significance.o \
+                      $(INTERP_TAROT_TEXT_OBJS) $(GUIDANCE_TEST_OBJ)
 	$(CC) $(CFLAGS) -o $@ $^

 $(OBJ_DIR)/%.o: %.c
@@ -7,11 +7,10 @@
 A Pebble smartwatch app that produces a daily personalized tarot (Celtic
 Cross) and astrology (natal chart + transits) reading.

-**Status:** only the core engine exists so far — a plain-C, dependency-free
+This repository holds the core engine: a plain-C, dependency-free
 library and standalone CLI (`dist/deck-engine`) that computes a full
-reading without needing a Pebble device, emulator, or SDK. The watchapp
-itself hasn't been built yet; the engine is designed so it can be linked
-into it later without rework.
+reading without needing a Pebble device, emulator, or SDK, designed so
+it links straight into Pebble watch code without rework.

 ## What it computes

@@ -45,10 +44,14 @@ engine/
                                  the user.properties template.
 dist/                            Build output (gitignored) — see below.
 interpreter/                     Separate module + binary (dist/interpreter-cli):
-                                  scores how significant a day's transits are
-                                  and prints a short narrative note for each,
-                                  reading deck-engine's --format json output
-                                  (see CLAUDE.md).
+                                  scores how significant a day's transits are,
+                                  reads out the full Celtic Cross spread with
+                                  every card's meaning, and closes with guidance
+                                  (every day, tailored to how significant it is)
+                                  tying the top transit to the spread, reading
+                                  deck-engine's --format json output. Supports
+                                  --format text|html|json and --lang en|de for
+                                  its own output too (see CLAUDE.md).
 docs/                            Architecture/dataflow diagrams, input/output format reference.
 Makefile                         Single root Makefile, builds both engine/ and interpreter/.
 ```
@@ -94,16 +97,23 @@ dist/deck-engine --seed "2026-07-03" \
 ```

 **Interpreter** (`interpreter/`, built by the same root `make`):
-scores how significant a day's transits are, reading `deck-engine`'s
-`--format json` output — the two binaries compose over that JSON, they're
-never linked together. `dist/run-interpreter.sh` is the daily-use
-equivalent of `run-engine.sh` (same OS clock + `user.properties` inputs),
-piping straight into `interpreter-cli`:
+scores how significant a day's transits are, reads out the full Celtic
+Cross spread with every card's meaning, and closes with guidance tying
+the day's biggest transit to the Attitude/Outcome cards - reading
+`deck-engine`'s `--format json` output. Its own output supports the same
+`--format text|html|json` and `--lang en|de` as `deck-engine` (note this
+`--lang` is independent of whatever language `deck-engine` was run
+with - `--format json` is always language-independent, see
+`docs/input-output-format.md`). `dist/run-interpreter.sh` is the
+daily-use equivalent of `run-engine.sh` (same OS clock + `user.properties`
+inputs, including `user.properties`' `lang=`), piping straight into
+`interpreter-cli`:

 ```bash
-dist/deck-engine ... --format json | dist/interpreter-cli
+dist/deck-engine ... --format json | dist/interpreter-cli [--format text|html|json] [--lang en|de]
 # or, for daily use:
-dist/run-interpreter.sh
+dist/run-interpreter.sh              # text output, language from user.properties
+dist/run-interpreter.sh html de      # HTML report with card art, override the language
 ```

 ## License
@@ -124,3 +134,10 @@ Transit narrative text in `interpreter/src/narrative.c` is condensed
 from Sepharial's *Transits and Planetary Periods* (1920), also in the
 public domain, except the Moon and Pluto entries, which are original
 (see the file's own comment).
+
+Guidance text in `interpreter/src/guidance.c` is original, written for
+this project.
+
+`engine/i18n/de.lang`'s translations of the above two files' text
+(`narrative.*`/`guidance.*` keys) are original German translations made
+for this project, same status as its card/spread text.
@@ -16,9 +16,8 @@ know before changing the engine. This document is the visual overview.
  (MIT), pinned to a specific commit — see its `VENDORED.md`.
 - **`engine/src/`** is the core engine. Everything except `main.c`,
  `reading.c`'s `reading_print_text`/`reading_print_html` functions, and
-  `i18n.c`'s file-loading half is free of `stdio`/CLI assumptions,
-  specifically so it can be linked into the Pebble watchapp later without
-  rework.
+  `i18n.c`'s file-loading half is free of `stdio`/CLI assumptions, so it
+  links straight into a Pebble watchapp without rework.
  - `rng.c` — deterministic string-seeded PRNG (FNV-1a + splitmix64).
  - `tarot.c` / `tarot_data.c` — the Celtic Cross draw and its content.
  - `astro.c` — natal chart + daily transits, built on the vendored
@@ -41,9 +40,6 @@ know before changing the engine. This document is the visual overview.
  `engine/scripts/user.properties.local` (gitignored) once it's filled
  in, and restored from there if `dist/` is ever wiped — see
  `CLAUDE.md`'s "Build & run".
- **The Pebble watchapp does not exist yet.** When it's built, it will
-  call `reading_generate()` directly and walk the returned struct to lay
-  out its own screens — it has no reason to touch `reading_print_*`.

 ## Dataflow

@@ -64,9 +60,10 @@ computations and combines their results:
   with position and upright/reversed orientation, fully determined by
   the seed string alone.

-These three results are combined into one `DailyReading` struct, which is
-either rendered by `reading_print_text`/`reading_print_html` (used by the
-CLI) or, in the future, walked directly by watchapp UI code. See
+These three results are combined into one `DailyReading` struct — the
+real API surface. `reading_print_text`/`reading_print_html` (used by the
+CLI) are just one way of consuming it; any caller, including watch UI
+code, can walk the struct's fields directly. See
 [`input-output-format.md`](input-output-format.md) for the exact fields
 and output formats.

@@ -55,12 +55,6 @@ digraph architecture {
    { rank=same; binary; distimg; disti18n; runsh; props; }
  }

-  subgraph cluster_watch {
-    label="Pebble watchapp — not built yet";
-    style="dashed"; color=firebrick; fontsize=11; fontcolor=firebrick;
-    watch [label="watchapp C / UI\n(future)", fillcolor=white, color=firebrick, fontcolor=firebrick, style="rounded,dashed"];
-  }
-
  pdf -> tarot_data [label="sourced from", style=dotted, color=gray40];

  tarot -> rng;
@@ -78,6 +72,4 @@ digraph architecture {
  images -> distimg [label="`make images`\ncopies", style=dotted, color=gray40];
  langfiles -> disti18n [label="`make i18n`\ncopies", style=dotted, color=gray40];
  runsh -> props [label="reads at\nrun time", style=dotted, color=gray40];
-
-  watch -> reading [label="will call\nreading_generate()\ndirectly", style=dashed, color=firebrick, fontcolor=firebrick];
 }
@@ -33,11 +33,9 @@ digraph dataflow {

  print_text [label="reading_print_text()", fillcolor="#cfe8fb"];
  print_html [label="reading_print_html()", fillcolor="#cfe8fb"];
-  watch_fn   [label="watchapp UI code\n(future — walks the struct\ndirectly, no print_* call)", fillcolor=white, color=firebrick, fontcolor=firebrick, style="rounded,dashed"];

  out_text [label="stdout: plain-text report", shape=parallelogram, fillcolor="#c8f0c8"];
  out_html [label="stdout: reading.html\n(<img src=\"img/...\"> per card)", shape=parallelogram, fillcolor="#c8f0c8"];
-  out_watch [label="watch screens\n(future)", shape=parallelogram, fillcolor=white, color=firebrick, fontcolor=firebrick, style="dashed"];

  cli -> main;
  runsh -> main;
@@ -59,9 +57,7 @@ digraph dataflow {

  daily_reading -> print_text;
  daily_reading -> print_html;
-  daily_reading -> watch_fn [style=dashed, color=firebrick];

  print_text -> out_text;
  print_html -> out_html;
-  watch_fn -> out_watch [style=dashed, color=firebrick];
 }
@@ -4,9 +4,10 @@ See [`architecture.md`](architecture.md) for how these fit together.
 There are two ways to provide input (direct CLI flags, or `run-engine.sh`
 + `user.properties`) and three output formats (`text`, `html`, `json`); the
 `DailyReading` struct is the programmatic form all three are rendered
-from, and the one the future watchapp will consume directly. `json` is
-also `interpreter-cli`'s input format — see "The interpreter" at the
-bottom of this file.
+from, and the one watch UI code consumes directly. `json` is also
+`interpreter-cli`'s input format — see "The interpreter" at the bottom
+of this file, which supports the same three output formats (and the
+same `--lang`) for its own report, independently of `deck-engine`.

 ## Input

@@ -90,8 +91,8 @@ build, like `dist/img/`). Adding a language is just dropping another
 ### `DailyReading` (the real output — `reading.h`)

 `reading_generate()` is the actual API; `text`/`html` below are just two
-ways of rendering the struct it fills in. This is what the watchapp will
-read directly once it exists.
+ways of rendering the struct it fills in. This is what watch UI code
+reads directly.

 ```c
 typedef struct {
@@ -227,16 +228,39 @@ read.
 `dist/interpreter-cli` is a separate binary — see `CLAUDE.md`'s
 "Interpretation" section for the full architecture — that reads a
 `--format json` document and scores how significant today's transits
-are. It never links the engine; it only depends on the JSON shape
-above.
+are. It never links `astro.c`/`tarot.c`/`reading.c` (or the vendored
+Astronomy Engine) — only `engine/src/tarot_data.c`/`i18n.c` are linked
+in, for real card/position names and Waite meaning text (see
+`CLAUDE.md`'s `INTERP_TAROT_TEXT_OBJS` note). Otherwise it depends only
+on the JSON shape above.
+
+Like `deck-engine`, its own output supports `--format text|html|json`
+and `--lang <code>`/`--i18n-dir <path>`:
+
+| Flag | Required | Format | Meaning |
+|---|---|---|---|
+| `[reading.json]` | no | file path or `-` | Input file; stdin (or `-`) if omitted. |
+| `--format` | no | `text` \| `html` \| `json` | This binary's **own output** format, defaults to `text`. Entirely independent of the `--format json` that produced its *input* - see below. |
+| `--lang` | no | language code, e.g. `en`, `de` | This binary's **own output** language, defaults to `en`. Same `<code>.lang`/`--i18n-dir` convention as `deck-engine` (see "Translations" above) - `main.c` calls `i18n_load()` itself, so `narrative.c`'s/`guidance.c`'s own text (in `engine/i18n/*.lang` under `narrative.*`/`guidance.*` keys) is translated too, not just the card/position/body/sign/aspect vocabulary it shares with `deck-engine`. |
+| `--i18n-dir` | no | path | Same convention as `deck-engine`'s: defaults to an `i18n/` directory next to this binary. |
+
+**This `--lang` is unrelated to whatever `--lang` `deck-engine` was run
+with to produce the `--format json` input** - that JSON is always
+language-independent (slugs only, see above), so it doesn't matter what
+language `deck-engine` printed anything in, or whether it was even asked
+to print anything at all (`--format json` never touches `--lang`
+either). The two `--lang` flags, on the two sides of the pipe, are
+independent settings.

 ```bash
-dist/deck-engine ... --format json | dist/interpreter-cli
+dist/deck-engine ... --format json | dist/interpreter-cli --format html --lang de
 # or:
 dist/deck-engine ... --format json > reading.json
-dist/interpreter-cli reading.json
-# or, for daily use (OS clock + user.properties, same inputs as run-engine.sh):
-dist/run-interpreter.sh
+dist/interpreter-cli --format json reading.json
+# or, for daily use (OS clock + user.properties, same inputs as run-engine.sh,
+# including user.properties' lang=):
+dist/run-interpreter.sh              # text output, language from user.properties
+dist/run-interpreter.sh html de      # override format/language for this run
 ```

 - **Input**: a file path argument, or stdin if no argument (or `-`) is
@@ -244,30 +268,195 @@ dist/run-interpreter.sh
  means "no notable transits today"; a missing key is treated as invalid
  input) and drives scoring. `"natal"."bodies"`/`"transits"."bodies"` are
  read too, for the sign/house context printed alongside each event below
-  (not for scoring) — an entry naming an unrecognized body, or a missing
-  `house`, is silently skipped rather than failing the load (see
-  `parse_bodies()` in `reading_io.c`); `spread` is always ignored.
- **Output**: a plain-text report — the day's overall significance level
-  (`Quiet`/`Notable`/`Significant`/`Major`, plus its rank out of the 4
-  defined levels, e.g. `Notable (2/4)`), a "worth a deeper Celtic Cross
-  look" line on `Major` days only, and up to 5 of today's aspects ranked
-  by score, each naming the sign and natal house the transiting planet
-  currently occupies and the sign and house of the natal planet it's
-  aspecting, followed by a short narrative sentence about what that
-  transiting planet classically signifies *and which area of life its
-  current house governs* (see `CLAUDE.md`'s `narrative.c` bullet) —
-  omitted only if the source material has nothing to say for that
-  planet/aspect combination:
+  (not for scoring), and `"spread"."positions"` is read for the full
+  Celtic Cross readout and the guidance paragraph below — an entry naming
+  an unrecognized body/card/position, a missing `house`, or a missing
+  `"spread"` key entirely is silently skipped/zeroed rather than failing
+  the load (see `parse_bodies()`/`parse_spread()` in `reading_io.c`).
+- **Input**: same for all three output formats above - only how the
+  parsed data gets rendered differs.

-  ```
-  Day significance: Significant (3/4)
-  (a major transit today - worth a deeper Celtic Cross look)
+### `--format text`

-  Top 3 significant transits:
-    1. Transiting Saturn in Aries (house 2) Square natal Sun in Taurus (house 3) (orb 0.5°, score 8.10)
-       In matters of money, possessions, and personal values (house 2). Brings depression, stagnation, hindrances and obstacles, and some deprivation of the usual benefits.
-    2. Transiting Pluto in Aquarius (house 12) Opposition natal Moon in Capricorn (house 11) (orb 0.2°, score 7.92)
-       In matters of solitude, the subconscious, and hidden matters (house 12). Brings deep, often hidden transformation - the surfacing or dismantling of something that has outgrown its old form.
-    3. Transiting Jupiter in Leo (house 5) Trine natal Venus in Aries (house 2) (orb 2.1°, score 3.40)
-       In matters of romance, creativity, and children (house 5). Brings increase and expansion - fullness of fortune and health, and a generally fortunate time.
-  ```
+A plain-text report, printed in a fixed order —
+  1. the day's overall significance level (`Quiet`/`Notable`/
+     `Significant`/`Major`, plus its rank out of the 4 defined levels,
+     e.g. `Notable (2/4)`), with a "worth a deeper Celtic Cross look"
+     line on `Major` days only;
+  2. up to 5 of today's aspects ranked by score, each naming the sign
+     and natal house the transiting planet currently occupies and the
+     sign and house of the natal planet it's aspecting, followed by a
+     short narrative sentence about what that transiting planet
+     classically signifies *and which area of life its current house
+     governs* (see `CLAUDE.md`'s `narrative.c` bullet) — omitted only if
+     the source material has nothing to say for that planet/aspect
+     combination;
+  3. the full 10-position Celtic Cross spread, in Waite's own drawing
+     order, each with its card (and orientation), the position's own
+     description, and that card's actual meaning;
+  4. finally, a guidance paragraph tying the day's top transit to the
+     spread's Attitude/Outcome cards, with its opening sentence tailored
+     to `day_level` (stronger wording on `Major`, softer on
+     `Quiet`/`Notable`, falling back to a transit-free reading of the
+     Attitude card alone on a day with no aspects at all) and, for the
+     Attitude/Outcome cards it names, their actual Waite meaning for the
+     orientation they landed in — see `CLAUDE.md`'s `guidance.c` bullet.
+     This is printed last, as the closing takeaway after the reader has
+     seen the full spread it references.
+
+```
+Day significance: Major (4/4)
+(a major transit today - worth a deeper Celtic Cross look)
+
+Top 5 significant transits:
+  1. Transiting Pluto in Aquarius (house 3) Conjunction natal Moon in Aquarius (house 3) (orb 2.9°, score 9.60)
+     In matters of communication, siblings, and everyday learning (house 3). Brings deep, often hidden transformation - the surfacing or dismantling of something that has outgrown its old form.
+  2. Transiting Neptune in Aries (house 5) Sextile natal Moon in Aquarius (house 3) (orb 2.5°, score 9.25)
+     In matters of romance, creativity, and children (house 5). Brings a state of chaos and confusion - an involved, uncertain condition of affairs, with plots, subtlety, or unseen influences at work.
+  3. Transiting Uranus in Gemini (house 7) Trine natal Moon in Aquarius (house 3) (orb 2.0°, score 8.96)
+     In matters of partnerships and close relationships (house 7). Brings separations, estrangements, sudden dislocations and violent upsets. Success through official or civic channels, and beneficial changes or appointments, are possible.
+
+Celtic Cross:
+  1. The Present: The Emperor (Reversed)
+     This covers him: the general influence affecting the matter.
+     Benevolence, compassion, credit; also confusion to enemies, obstruction, immaturity.
+  2. The Challenge: The Devil
+     This crosses him: the nature of the obstacle in the matter.
+     Ravage, violence, vehemence, extraordinary efforts, force, fatality.
+  ...
+  7. Himself: The Magician
+     His position or attitude in the circumstances.
+     Skill, diplomacy, address, subtlety; self-confidence, will.
+  ...
+  10. The Outcome: Strength
+     What will come: the final result of the matter.
+     Power, energy, action, courage, magnanimity; complete success and honours.
+
+With Pluto as today's dominant influence: Today concentrates whatever you already
+bring to it - your current approach will be amplified, so make sure it's the one
+you want.
+Your Attitude card is The Magician: Skill, diplomacy, address, subtlety; self-confidence, will.
+The spread's likely Outcome is Strength: Power, energy, action, courage, magnanimity; complete success and honours.
+```
+
+On a quieter day, only the opening of the guidance paragraph changes:
+
+```
+Day significance: Notable (2/4)
+...
+With a mild touch from Jupiter today: Your instincts are sound, but the day is
+testing them - hold your position without forcing the issue.
+Your Attitude card is The Sun: Material happiness, fortunate marriage, contentment.
+The spread's likely Outcome is Justice: Equity, rightness, probity, executive; triumph of the deserving side in law.
+```
+
+The same report with `--lang de` (same input as the Major example
+above):
+
+```
+Bedeutung des Tages: Einschneidend (4/4)
+(ein einschneidender Transit heute - ein genauerer Blick auf das Keltische Kreuz lohnt sich)
+
+Top 5 wichtige Transits:
+  1. Transit Pluto in Wassermann (Haus 3) Konjunktion natal Mond in Wassermann (Haus 3) (Orbis 2.9°, Punktzahl 9.60)
+     In Fragen von Kommunikation, Geschwistern und alltäglichem Lernen (Haus 3). Bringt tiefgreifenden, oft verborgenen Wandel - das Auftauchen oder die Auflösung von etwas, das seine alte Form überwachsen hat.
+  ...
+
+Keltisches Kreuz:
+  1. Die Gegenwart: Der Herrscher (Umgekehrt)
+     Dies bedeckt ihn: der allgemeine Einfluss, der die Angelegenheit betrifft.
+     Wohlwollen, Mitgefühl, Ansehen; auch Verwirrung der Feinde, Behinderung, Unreife.
+  ...
+
+Pluto ist heute der bestimmende Einfluss: Der heutige Tag verstärkt, was du bereits
+mitbringst - deine derzeitige Herangehensweise wird verstärkt, also stelle sicher,
+dass es die richtige ist.
+Deine Haltungskarte ist Der Magier: Geschick, Diplomatie, Gewandtheit, Feinsinn; Selbstvertrauen, Wille.
+Das wahrscheinliche Ergebnis des Blatts ist Kraft: Macht, Energie, Tatkraft, Mut, Großmut; voller Erfolg und Ehren.
+```
+
+### `--format html`
+
+A single self-contained HTML page, same inline-CSS/no-JS approach as
+`deck-engine`'s own `--format html`, and the same three sections as text
+(significant transits as a table, the full Celtic Cross as an image
+grid, guidance as a closing callout) - reusing the exact same
+`img/<file>` card-art convention (`tarot_card_image_file()`), so it
+expects to sit next to an `img/` directory just like `deck-engine`'s
+HTML output:
+
+```html
+<div class="card">
+  <div class="position">The Present</div>
+  <img class="reversed" src="img/RWS_Tarot_04_Emperor.jpeg" alt="The Emperor">
+  <div class="name">The Emperor (Reversed)</div>
+  <div class="desc">This covers him: the general influence affecting the matter.</div>
+  <div class="meaning">Benevolence, compassion, credit; also confusion to enemies, obstruction, immaturity.</div>
+</div>
+```
+
+The guidance section renders as one `<p>` per line of the same text
+`--format text` prints last (intro sentence, Attitude line, Outcome
+line), inside a `<div class="guidance">`.
+
+### `--format json`
+
+Unlike `deck-engine`'s own `--format json` - which is deliberately
+**language-independent** (slugs only, no `--lang`-dependent prose, since
+it's a machine interchange format between the two binaries) -
+`interpreter-cli`'s `--format json` embeds the *same localized
+narrative/guidance prose* `--format text` prints, in whatever `--lang`
+was loaded, **alongside** stable, language-independent slug fields. This
+is a deliberate difference: rendering that prose is this module's whole
+job, so a JSON consumer that wants it doesn't have to reimplement
+`narrative.c`/`guidance.c`'s logic itself - but a consumer that only
+wants structured data (e.g. watch UI code with its own rendering) still
+has the slugs to work with directly.
+
+```json
+{
+  "day_significance": {
+    "level": "major",
+    "rank": 4,
+    "count": 4,
+    "deserves_framing": true
+  },
+  "significant_transits": [
+    {
+      "transiting_planet": "pluto",
+      "transiting_sign": "aquarius",
+      "transiting_house": 3,
+      "natal_planet": "moon",
+      "natal_sign": "aquarius",
+      "natal_house": 3,
+      "aspect": "conjunction",
+      "orb": 2.8821,
+      "score": 9.5961,
+      "narrative": "In matters of communication, siblings, and everyday learning (house 3). Brings deep, often hidden transformation - the surfacing or dismantling of something that has outgrown its old form."
+    }
+  ],
+  "celtic_cross": [
+    {
+      "position": "present",
+      "card": "emperor",
+      "reversed": true,
+      "card_name": "The Emperor",
+      "meaning": "Benevolence, compassion, credit; also confusion to enemies, obstruction, immaturity."
+    }
+  ],
+  "guidance": "With Pluto as today's dominant influence: Today concentrates whatever you already bring to it - your current approach will be amplified, so make sure it's the one you want.\nYour Attitude card is The Magician: Skill, diplomacy, address, subtlety; self-confidence, will.\nThe spread's likely Outcome is Strength: Power, energy, action, courage, magnanimity; complete success and honours."
+}
+```
+
+- `significant_transits` has `interp.top_item_count` entries (0-5, same
+  ranking as `--format text`); `celtic_cross` always has exactly 10, in
+  `CelticCrossPosition` enum order (same order as `deck-engine`'s own
+  `spread.positions`).
+- `orb`/`score` are `%.4f`, matching `deck-engine`'s own JSON precision
+  for angles.
+- `guidance` is always present and non-empty (unlike
+  `significant_transits`, which can be `[]` on a genuinely quiet day) -
+  see `guidance.c`'s no-aspects-at-all fallback in `CLAUDE.md`.
+- With `--lang de`, every string value above except the slugs
+  (`"level"`, `"transiting_planet"`, `"aspect"`, `"card"`, `"position"`,
+  etc.) changes language; the slugs never do.
@@ -18,6 +18,12 @@ exactly where the planets were, and which zodiac sign was rising, at the
 moment you were born — your **natal chart**. Everything else the app
 does is compared against that one fixed reference point.

+You can also choose a **language** for your reading - English or German.
+Every part of the reading described below, including the guidance
+paragraph at the end, is available in either; switching languages
+doesn't change any of the astrology or the tarot draw itself, only how
+it's worded.
+
 ## What happens every day

 Each day, the app does two independent things and then combines them:
@@ -95,21 +101,51 @@ That wording is condensed from a public-domain 1920 astrology book
 (Sepharial's *Transits and Planetary Periods*), the same way the tarot
 card meanings are condensed from Waite's 1911 book.

+Every day — Quiet or Major — the app also reads out your full 10-card
+Celtic Cross spread, position by position, each with that card's actual
+meaning (drawn from the same Waite text as the rest of the reading), so
+you get one complete, readable account of the spread rather than just
+a list of card names.
+
+After that spread, you get a short paragraph of actual guidance: how to
+meet the day, given both the single biggest transit happening and your
+own tarot spread. It looks at that transit's character (is it an easy
+angle or a tense one?) together with your *Attitude* card — the
+position Waite describes as "his position or attitude in the
+circumstances", i.e. how you're currently approaching things — upright
+or reversed, and gives a concrete stance to take today. It then names
+your *Attitude* and *Outcome* cards again, this time spelling out what
+each one actually means for the orientation it landed in — so instead
+of just "your Outcome card is the Wheel of Fortune, reversed" you get
+that card's real meaning alongside it. This is the one place the app
+actually combines the astrology and the tarot into a single piece of
+advice, rather than leaving you to read them side by side yourself, and
+it's printed last, as the closing takeaway once you've seen the full
+spread it's referring to.
+
+The wording flexes with how big the day is: on a Major day it opens
+with something like "With Pluto as today's dominant influence"; on a
+quieter day with only a mild aspect in play it's softer, e.g. "With a
+mild touch from Jupiter today" or, fainter still, "Mercury is only
+faintly active today, but for what it's worth"; and on a genuinely
+uneventful day with no aspects at all, there's no planet to name, so it
+falls back to a plain read of your Attitude card's orientation alone
+("There's no standout transit today - it's an astrologically quiet
+day..."). The underlying stance advice itself doesn't change with
+intensity — only how insistently it's introduced.
+
 ## What a day's reading actually gives you

 Put together, one day's reading contains: your natal chart (for
 reference), today's sky and how it's speaking to your chart, how
 significant today is overall (with a plain-language note on each of the
-main events driving that), and your 10-card Celtic Cross spread for the
-day. Right now these sit side by side — the astrology tells you *how
-eventful* today is and *where* to pay attention, and the tarot spread
-gives you the actual guidance to sit with. They don't yet get woven
-into a single narrative (e.g. a spread explained *in light of* today's
-significant transit) — that combined storytelling is the next piece to
-build, not something you get today.
-
-*(This page, like that piece, is still a work in progress — expect it
-to grow as the reading itself does.)*
+main events driving that), your full 10-card Celtic Cross spread read
+out card by card with each card's meaning, and — every day, not just
+Major ones — a closing paragraph of guidance tying the day's biggest
+transit to your Attitude and Outcome cards specifically. Attitude and
+Outcome get that treatment in the closing guidance; the other eight
+positions are read in light of your natal chart and today's sky, the
+way the worked example below does by hand.

 ## A worked example

@@ -123,7 +159,7 @@ Sagittarius.
 are forming aspects back to the natal chart above — see below for which
 ones actually matter.

-**How big is today.**
+**How big is today, and the significant transits.**

 ```
 Day significance: Major (4/4)
@@ -149,18 +185,93 @@ from the 5th house, and a disruptive-but-possibly-lucky Uranus trine
 from the 7th. Communication, romance, and relationships are all
 quietly under pressure at once.

-**Tarot spread (excerpt).** Drawn independently, using today's date:
+**The Celtic Cross, read out in full** (drawn independently, using
+today's date):

- *The Present* — The Emperor, reversed: immaturity or a loss of
-  authority, rather than confident structure.
- *The Challenge* — The Devil: force, ravage, an obstacle that isn't
-  easily reasoned with.
- *The Near Future* — The World, reversed: stagnation, things staying
-  fixed in place rather than resolving.
+```
+Celtic Cross:
+  1. The Present: The Emperor (Reversed)
+     This covers him: the general influence affecting the matter.
+     Benevolence, compassion, credit; also confusion to enemies, obstruction, immaturity.
+  2. The Challenge: The Devil
+     This crosses him: the nature of the obstacle in the matter.
+     Ravage, violence, vehemence, extraordinary efforts, force, fatality.
+  3. The Crown: The Empress
+     This crowns him: the aim or ideal, the best that can be achieved.
+     Fruitfulness, action, initiative, length of days; also difficulty, doubt, ignorance.
+  4. The Foundation: Justice
+     This is beneath him: the basis of the matter, already actual.
+     Equity, rightness, probity, executive; triumph of the deserving side in law.
+  5. The Recent Past: Temperance
+     This is behind him: the influence that is just passing away.
+     Economy, moderation, frugality, management, accommodation.
+  6. The Near Future: The World (Reversed)
+     This is before him: the influence now coming into action.
+     Inertia, fixity, stagnation, permanence.
+  7. Himself: The Magician
+     His position or attitude in the circumstances.
+     Skill, diplomacy, address, subtlety; self-confidence, will.
+  8. His House: The Hermit (Reversed)
+     His environment and the tendencies at work therein.
+     Concealment, disguise, policy, fear, unreasoned caution.
+  9. Hopes and Fears: The Moon (Reversed)
+     His hopes or fears in the matter.
+     Instability, inconstancy, silence, lesser degrees of deception and error.
+  10. The Outcome: Strength
+     What will come: the final result of the matter.
+     Power, energy, action, courage, magnanimity; complete success and honours.
+```
+
+**The closing guidance**, tying the day's biggest transit (Pluto,
+above) to the Attitude and Outcome cards from the spread just shown:
+
+```
+With Pluto as today's dominant influence: Today concentrates whatever you already
+bring to it - your current approach will be amplified, so make sure it's the one
+you want.
+Your Attitude card is The Magician: Skill, diplomacy, address, subtlety; self-confidence, will.
+The spread's likely Outcome is Strength: Power, energy, action, courage, magnanimity; complete success and honours.
+```

 Read side by side, the astrology and the tarot happen to rhyme here —
 both point toward something that wants to shift (Pluto's "hidden
 transformation," The Devil's "force") running into something that
-feels stuck (a reversed World, an afflicted Moon) — but that's the
-reader's own synthesis for now, not something the app does for you (see
-above).
+feels stuck (a reversed World, an afflicted Moon). The closing guidance
+picks up part of that thread automatically — an upright Attitude card
+(The Magician) paired with this neutral, concentrating Pluto transit
+becomes "make sure your current approach is the one you want" — reading
+every other position (Challenge, Near Future, and the rest) into that
+same story the way this paragraph just did by hand is the reader's own
+synthesis (see above).
+
+**A quieter day, for contrast.** Someone else — born 10 October 1990 in
+Sydney, checking their reading on 15 January 2026 — gets a much lower-key
+version of the same guidance, because the biggest thing happening that
+day is a loose, single Jupiter aspect rather than an exact Pluto hit:
+
+```
+Day significance: Notable (2/4)
+...
+With a mild touch from Jupiter today: Your instincts are sound, but the day is
+testing them - hold your position without forcing the issue.
+Your Attitude card is The Sun: Material happiness, fortunate marriage, contentment.
+The spread's likely Outcome is Justice: Equity, rightness, probity, executive; triumph of the deserving side in law.
+```
+
+Same stance logic (a tense aspect, an upright Attitude card), but the
+opening line matches how much the day actually asks of you.
+
+**The same Major day, in German.** Switching languages doesn't change
+anything about the reading itself - same cards, same transits, same
+guidance logic - only the words:
+
+```
+Bedeutung des Tages: Einschneidend (4/4)
+(ein einschneidender Transit heute - ein genauerer Blick auf das Keltische Kreuz lohnt sich)
+
+Pluto ist heute der bestimmende Einfluss: Der heutige Tag verstärkt, was du bereits
+mitbringst - deine derzeitige Herangehensweise wird verstärkt, also stelle sicher,
+dass es die richtige ist.
+Deine Haltungskarte ist Der Magier: Geschick, Diplomatie, Gewandtheit, Feinsinn; Selbstvertrauen, Wille.
+Das wahrscheinliche Ergebnis des Blatts ist Kraft: Macht, Energie, Tatkraft, Mut, Großmut; voller Erfolg und Ehren.
+```
@@ -154,3 +154,107 @@ card.judgement.reversed=Schwäche, Kleinmut, Einfalt; auch Überlegung, Entschei
 card.world.name=Die Welt
 card.world.upright=Gesicherter Erfolg, Belohnung, Reise, Weg, Auswanderung, Flucht, Ortswechsel.
 card.world.reversed=Trägheit, Erstarrung, Stillstand, Beständigkeit.
+
+# --- UI-Bezeichnungen des Interpreters (interpreter/src/main.c) ---
+interp.day_significance=Bedeutung des Tages:
+interp.day_level.quiet=Ruhig
+interp.day_level.notable=Bemerkenswert
+interp.day_level.significant=Bedeutend
+interp.day_level.major=Einschneidend
+interp.major_framing=(ein einschneidender Transit heute - ein genauerer Blick auf das Keltische Kreuz lohnt sich)
+interp.top_transits.one=Wichtigster Transit:
+interp.top_transits.many=Top %d wichtige Transits:
+interp.no_notable_transits=Heute keine nennenswerten Transits.
+interp.in_sign_house=in %s (Haus %d)
+interp.score=Punktzahl
+interp.page_title=Deck in a Dash - Interpretation
+interp.heading=Tägliche Interpretation
+interp.heading_day_significance=Bedeutung des Tages
+interp.heading_transits=Wichtige Transits
+interp.heading_guidance=Rat für heute
+
+# --- Transit-Deutungen (interpreter/src/narrative.c), sinngemäße
+# Übertragung aus Sepharials Transits and Planetary Periods (1920,
+# gemeinfrei), Kapitel VIII "Effects of Transits" - eigene Übersetzung
+# für dieses Projekt, keine Übernahme aus einer veröffentlichten
+# deutschen Ausgabe. Mond und Pluto sind eigener, englischsprachig
+# verfasster Text (siehe narrative.c) und hier ebenfalls frei übertragen. ---
+narrative.house_frame=In Fragen von %s (Haus %d).
+narrative.house.1=deines Selbstbilds, deiner Identität und deines äußeren Auftretens
+narrative.house.2=Geld, Besitz und persönlicher Werte
+narrative.house.3=Kommunikation, Geschwistern und alltäglichem Lernen
+narrative.house.4=Zuhause, Familie und deiner Herkunft
+narrative.house.5=Romantik, Kreativität und Kindern
+narrative.house.6=täglicher Arbeit, Routine und Gesundheit
+narrative.house.7=Partnerschaften und engen Beziehungen
+narrative.house.8=gemeinsamen Ressourcen, Nähe und Wandel
+narrative.house.9=Reisen, höherer Bildung und Überzeugungen
+narrative.house.10=Karriere, Ansehen und öffentlichem Auftreten
+narrative.house.11=Freundschaften, Gemeinschaft und Zukunftshoffnungen
+narrative.house.12=Rückzug, dem Unbewussten und verborgenen Dingen
+
+narrative.sun.base=
+narrative.sun.harmonious=Vorteile durch Vorgesetzte und Aufstieg in deinem Lebens- und Arbeitsbereich - Ehrungen, Vergütungen und erfolgreiche neue Verbindungen.
+narrative.sun.discordant=Herabsetzung und Unehre, Verlust der Stellung und ungünstige Beurteilung durch Vorgesetzte.
+narrative.moon.base=Färbt den alltäglichen und häuslichen Lebensbereich, oft verbunden mit der Eröffnung neuer Wege.
+narrative.moon.harmonious=Diese Veränderungen fallen eher vorteilhaft aus.
+narrative.moon.discordant=Diese Veränderungen fallen eher ungünstig aus, mit etwas Unwohlsein oder häuslichen Reibereien.
+narrative.mercury.base=Betrifft Schriftliches, Reisen, Handel und alltägliche Angelegenheiten - ein neutraler Bote, dessen Wirkung sich nach der Art des Aspekts richtet, den er bildet.
+narrative.mercury.harmonious=
+narrative.mercury.discordant=
+narrative.venus.base=Rückt häusliche und gesellschaftliche Angelegenheiten in den Vordergrund - Glück, Annehmlichkeiten und Gunstbezeigungen.
+narrative.venus.harmonious=Erfolg in Liebesangelegenheiten und künstlerischen Unternehmungen ist wahrscheinlich.
+narrative.venus.discordant=Kummer und Enttäuschung sind wahrscheinlicher.
+narrative.mars.base=Eine anstrengende Zeit voller Streit, Auseinandersetzungen und Ärger, mit einem gewissen Verletzungsrisiko je nach dem Zeichen, in dem er steht.
+narrative.mars.harmonious=Kann Vorteile durch Ärzte, Chirurgen oder neue Projekte und Unternehmungen bringen.
+narrative.mars.discordant=
+narrative.jupiter.base=Bringt Zuwachs und Ausdehnung - Fülle an Glück und Gesundheit und eine insgesamt günstige Zeit.
+narrative.jupiter.harmonious=
+narrative.jupiter.discordant=
+narrative.saturn.base=Bringt Niedergeschlagenheit, Stillstand, Hindernisse und Erschwernisse sowie eine gewisse Einbuße der gewohnten Vorteile.
+narrative.saturn.harmonious=Gunstbezeigungen aus älteren Verbindungen und vergangenen Beziehungen sind weiterhin möglich.
+narrative.saturn.discordant=
+narrative.uranus.base=Bringt Trennungen, Entfremdungen, plötzliche Verschiebungen und heftige Erschütterungen.
+narrative.uranus.harmonious=Erfolg auf amtlichem oder öffentlichem Weg sowie günstige Veränderungen oder Berufungen sind möglich.
+narrative.uranus.discordant=
+narrative.neptune.base=Bringt einen Zustand von Chaos und Verwirrung - eine verworrene, unsichere Lage der Dinge, mit Intrigen, Heimlichkeiten oder unsichtbaren Einflüssen am Werk.
+narrative.neptune.harmonious=
+narrative.neptune.discordant=
+narrative.pluto.base=Bringt tiefgreifenden, oft verborgenen Wandel - das Auftauchen oder die Auflösung von etwas, das seine alte Form überwachsen hat.
+narrative.pluto.harmonious=
+narrative.pluto.discordant=
+
+# --- Guidance (interpreter/src/guidance.c), eigener Text für dieses
+# Projekt - siehe guidance.c. Bewusst in direkter "Du"-Anrede, anders
+# als das "er/ihn" aus Waites eigenem Text oben - entspricht dem
+# eigenen Registerwechsel des englischen Originaltexts für diesen
+# neuen, unmittelbareren Inhalt. ---
+guidance.stance.harmonious.upright=Du begegnest dem Tag bereits mit der richtigen Einstellung - vertraue darauf, statt eine günstige Lage in Frage zu stellen.
+guidance.stance.harmonious.reversed=Der Tag selbst spielt dir in die Hände, auch wenn du dich noch nicht gefestigt fühlst - vertraue der Dynamik mehr als deinen derzeitigen Zweifeln.
+guidance.stance.discordant.upright=Dein Gespür ist richtig, doch der Tag stellt es auf die Probe - halte deine Position, ohne die Sache zu erzwingen.
+guidance.stance.discordant.reversed=Sowohl der Tag als auch dein eigener Stand sind gerade unsicher - jetzt ist der Moment, dich zu sammeln, bevor du weitergehst.
+guidance.stance.neutral.upright=Der heutige Tag verstärkt, was du bereits mitbringst - deine derzeitige Herangehensweise wird verstärkt, also stelle sicher, dass es die richtige ist.
+guidance.stance.neutral.reversed=Der heutige Tag verstärkt vieles, auch das, was in deiner eigenen Herangehensweise noch ungeklärt ist - kläre es lieber, bevor du handelst.
+guidance.intro.quiet=%s ist heute nur schwach aktiv, aber immerhin:
+guidance.intro.notable=%s wirkt heute nur leicht:
+guidance.intro.significant=%s ist heute deutlich aktiv:
+guidance.intro.major=%s ist heute der bestimmende Einfluss:
+guidance.no_transit.upright=Heute gibt es keinen herausragenden Transit - astrologisch ist es ein ruhiger Tag. Das macht ihn vor allem zu einer Frage der Standfestigkeit: vertraue deinem jetzigen Stand und nutze die Ruhe, um voranzukommen.
+guidance.no_transit.reversed=Heute gibt es keinen herausragenden Transit - astrologisch ist es ein ruhiger Tag. Das ist ein guter Moment, um in aller Ruhe deinen eigenen Stand neu zu finden, da nichts von außen das Tempo vorgibt.
+guidance.attitude_intro=Deine Haltungskarte ist
+guidance.outcome_intro=Das wahrscheinliche Ergebnis des Blatts ist
+
+# Planetennamen für guidance.intro.* oben - eine eigene Tabelle
+# getrennt von body.*, da Sonne und Mond im Deutschen (wie im
+# Englischen) einen bestimmten Artikel erhalten, die übrigen acht
+# Planeten aber nicht.
+guidance.planet.sun=die Sonne
+guidance.planet.moon=der Mond
+guidance.planet.mercury=Merkur
+guidance.planet.venus=Venus
+guidance.planet.mars=Mars
+guidance.planet.jupiter=Jupiter
+guidance.planet.saturn=Saturn
+guidance.planet.uranus=Uranus
+guidance.planet.neptune=Neptun
+guidance.planet.pluto=Pluto
@@ -163,3 +163,104 @@ card.judgement.reversed=Weakness, pusillanimity, simplicity; also deliberation,
 card.world.name=The World
 card.world.upright=Assured success, recompense, voyage, route, emigration, flight, change of place.
 card.world.reversed=Inertia, fixity, stagnation, permanence.
+
+# --- Interpreter UI labels (interpreter/src/main.c) ---
+interp.day_significance=Day significance:
+interp.day_level.quiet=Quiet
+interp.day_level.notable=Notable
+interp.day_level.significant=Significant
+interp.day_level.major=Major
+interp.major_framing=(a major transit today - worth a deeper Celtic Cross look)
+interp.top_transits.one=Top significant transit:
+interp.top_transits.many=Top %d significant transits:
+interp.no_notable_transits=No notable transits today.
+interp.in_sign_house=in %s (house %d)
+interp.score=score
+interp.page_title=Deck in a Dash - Interpretation
+interp.heading=Daily Interpretation
+interp.heading_day_significance=Day Significance
+interp.heading_transits=Significant Transits
+interp.heading_guidance=Guidance
+
+# --- Transit narratives (interpreter/src/narrative.c), condensed from
+# Sepharial's Transits and Planetary Periods (1920, public domain),
+# Chapter VIII "Effects of Transits" - except Moon and Pluto, which are
+# original (see narrative.c's own comment for why) ---
+narrative.house_frame=In matters of %s (house %d).
+narrative.house.1=your sense of self, identity, and outward appearance
+narrative.house.2=money, possessions, and personal values
+narrative.house.3=communication, siblings, and everyday learning
+narrative.house.4=home, family, and your roots
+narrative.house.5=romance, creativity, and children
+narrative.house.6=daily work, routine, and health
+narrative.house.7=partnerships and close relationships
+narrative.house.8=shared resources, intimacy, and transformation
+narrative.house.9=travel, higher learning, and beliefs
+narrative.house.10=career, reputation, and public standing
+narrative.house.11=friendships, community, and hopes for the future
+narrative.house.12=solitude, the subconscious, and hidden matters
+
+narrative.sun.base=
+narrative.sun.harmonious=Benefits from superiors and advancement in your sphere of life and work - honours, emoluments, and successful new associations.
+narrative.sun.discordant=Degradation and dishonour, loss of position, and adverse judgement from superiors.
+narrative.moon.base=Colours the everyday and domestic sphere of life, often coinciding with the opening of new avenues.
+narrative.moon.harmonious=These changes tend to be advantageous.
+narrative.moon.discordant=These changes tend to be adverse, with some indisposition or domestic friction.
+narrative.mercury.base=Affects writings, journeys, commerce, and everyday activities - a neutral messenger whose effect follows the nature of the aspect it makes.
+narrative.mercury.harmonious=
+narrative.mercury.discordant=
+narrative.venus.base=Brings domestic and social affairs to the fore - happiness, comforts, and favours.
+narrative.venus.harmonious=Success in love affairs and artistic pursuits is likely.
+narrative.venus.discordant=Grief and disappointment are more likely.
+narrative.mars.base=A strenuous time of quarrels, contention, strife and anger, with some risk of hurts or injuries depending on the sign it occupies.
+narrative.mars.harmonious=Can bring benefits from doctors, surgeons, or new projects and enterprises.
+narrative.mars.discordant=
+narrative.jupiter.base=Brings increase and expansion - fullness of fortune and health, and a generally fortunate time.
+narrative.jupiter.harmonious=
+narrative.jupiter.discordant=
+narrative.saturn.base=Brings depression, stagnation, hindrances and obstacles, and some deprivation of the usual benefits.
+narrative.saturn.harmonious=Favours from older connections and past associations are still possible.
+narrative.saturn.discordant=
+narrative.uranus.base=Brings separations, estrangements, sudden dislocations and violent upsets.
+narrative.uranus.harmonious=Success through official or civic channels, and beneficial changes or appointments, are possible.
+narrative.uranus.discordant=
+narrative.neptune.base=Brings a state of chaos and confusion - an involved, uncertain condition of affairs, with plots, subtlety, or unseen influences at work.
+narrative.neptune.harmonious=
+narrative.neptune.discordant=
+narrative.pluto.base=Brings deep, often hidden transformation - the surfacing or dismantling of something that has outgrown its old form.
+narrative.pluto.harmonious=
+narrative.pluto.discordant=
+
+# --- Guidance (interpreter/src/guidance.c), original text written for
+# this project - see guidance.c's own comment for why. Deliberately
+# direct "you/your" address, unlike the "him/his" register used for
+# Waite's own text above - matches the English original's own register
+# shift for this new, more conversational content. ---
+guidance.stance.harmonious.upright=You're already meeting the day in the right spirit - lean into it rather than second-guessing a favorable position.
+guidance.stance.harmonious.reversed=The day itself is working in your favor even though you don't feel settled yet - trust the momentum more than your current doubts.
+guidance.stance.discordant.upright=Your instincts are sound, but the day is testing them - hold your position without forcing the issue.
+guidance.stance.discordant.reversed=Both the day and your own footing are unsettled right now - this is a moment to steady yourself before pushing forward.
+guidance.stance.neutral.upright=Today concentrates whatever you already bring to it - your current approach will be amplified, so make sure it's the one you want.
+guidance.stance.neutral.reversed=Today intensifies things, including whatever is currently unresolved in your own approach - worth sorting out before acting.
+guidance.intro.quiet=%s is only faintly active today, but for what it's worth:
+guidance.intro.notable=With a mild touch from %s today:
+guidance.intro.significant=With %s clearly active today:
+guidance.intro.major=With %s as today's dominant influence:
+guidance.no_transit.upright=There's no standout transit today - it's an astrologically quiet day. That leaves things mostly about steadiness: trust your current footing and use the calm to make headway.
+guidance.no_transit.reversed=There's no standout transit today - it's an astrologically quiet day. That's a good moment to quietly re-settle your own footing, since nothing external is forcing the pace.
+guidance.attitude_intro=Your Attitude card is
+guidance.outcome_intro=The spread's likely Outcome is
+
+# Planet names as used in guidance.intro.* above - a separate table from
+# body.* because English (and German) give the Sun/Moon a definite
+# article that the other eight planets don't take.
+guidance.planet.sun=the Sun
+guidance.planet.moon=the Moon
+guidance.planet.mercury=Mercury
+guidance.planet.venus=Venus
+guidance.planet.mars=Mars
+guidance.planet.jupiter=Jupiter
+guidance.planet.saturn=Saturn
+guidance.planet.uranus=Uranus
+guidance.planet.neptune=Neptune
+guidance.planet.pluto=Pluto
@@ -3,6 +3,12 @@
 # "today": same OS-clock seed/transit-moment and user.properties birth
 # data as run-engine.sh, but reports how significant today's transits are
 # instead of printing the full reading. Usage: ./run-interpreter.sh
+# [text|html|json] [lang]
+#
+# [lang] overrides user.properties' lang= for this run only, same as
+# run-engine.sh - but note it only affects interpreter-cli's own output;
+# deck-engine is always run without --lang here, since --format json is
+# deliberately language-independent (see docs/input-output-format.md).
 #
 # Requires both dist/deck-engine (built by engine/'s Makefile) and
 # dist/interpreter-cli (built by interpreter/'s own Makefile) to already
@@ -35,6 +41,7 @@ birth_time=""
 birth_utc_offset=""
 birth_lat=""
 birth_lon=""
+lang="en"

 while IFS='=' read -r key value || [ -n "$key" ]; do
  key="$(printf '%s' "$key" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')"
@@ -48,6 +55,7 @@ while IFS='=' read -r key value || [ -n "$key" ]; do
    birth_utc_offset) birth_utc_offset="$value" ;;
    birth_lat) birth_lat="$value" ;;
    birth_lon) birth_lon="$value" ;;
+    lang) [ -n "$value" ] && lang="$value" ;;
  esac
 done <"$PROPERTIES_FILE"

@@ -67,10 +75,13 @@ check_set birth_lon "$birth_lon"

 # OS-provided inputs: today's date is the tarot seed (stable all day, a
 # new spread each day), current UTC time drives today's transits. The
-# tarot seed doesn't matter for --format json (only "transits" is read
-# downstream) but it's kept identical to run-engine.sh's for consistency.
+# tarot seed still matters for --format json now that "spread" is read
+# downstream too (guidance.c's Attitude/Outcome framing) - kept identical
+# to run-engine.sh's for consistency either way.
 seed="$(date +%Y-%m-%d)"
 transit_date="$(date -u +%Y-%m-%dT%H:%M)"
+format="${1:-text}"
+lang="${2:-$lang}"

 "$ENGINE_BINARY" \
  --seed "$seed" \
@@ -81,4 +92,4 @@ transit_date="$(date -u +%Y-%m-%dT%H:%M)"
  --birth-lon "$birth_lon" \
  --date "$transit_date" \
  --format json \
-  | exec "$INTERPRETER_BINARY"
+  | exec "$INTERPRETER_BINARY" --format "$format" --lang "$lang" --i18n-dir "$SCRIPT_DIR/i18n"
@@ -0,0 +1,164 @@
+#include "guidance.h"
+
+/* i18n_get() only - see narrative.c's own comment on why this one extra
+ * engine header is needed despite guidance.h's otherwise header-only
+ * engine dependency. */
+#include "../../engine/src/i18n.h"
+
+/* Slugs for building "guidance.planet.<slug>"/i18n keys - mirrors
+ * reading_io.c's own k_body_slug, same duplication policy (see
+ * significance.c's comment for why each independently-testable module
+ * keeps its own small table rather than linking astro.c). */
+static const char *const k_body_slug[NUM_BODIES] = {
+  "sun", "moon", "mercury", "venus", "mars",
+  "jupiter", "saturn", "uranus", "neptune", "pluto",
+};
+
+/* English fallback only - "the Sun"/"the Moon" take a definite article
+ * that the other eight planets don't; see engine/i18n/en.lang's own
+ * comment on the guidance.planet.* keys this backs. */
+static const char *const k_planet_name_fallback[NUM_BODIES] = {
+  "the Sun", "the Moon", "Mercury", "Venus", "Mars",
+  "Jupiter", "Saturn", "Uranus", "Neptune", "Pluto",
+};
+
+static const char *planet_display_name(Body body) {
+  char key[32];
+  snprintf(key, sizeof key, "guidance.planet.%s", k_body_slug[body]);
+  return i18n_get(key, k_planet_name_fallback[body]);
+}
+
+typedef enum {
+  CHAR_HARMONIOUS = 0,
+  CHAR_DISCORDANT,
+  CHAR_NEUTRAL,
+  NUM_TRANSIT_CHARACTERS
+} TransitCharacter;
+
+typedef struct {
+  const char *slug;       /* builds "guidance.stance.<slug>.*" keys */
+  const char *upright;    /* Attitude card fell upright (English fallback) */
+  const char *reversed;   /* Attitude card fell reversed (English fallback) */
+} AttitudeStance;
+
+/* Original guidance text for this project - see guidance.h's doc
+ * comment for why. Fallback (English) text only; German translations
+ * live in engine/i18n/de.lang under the matching "guidance.*" keys.
+ * Indexed by TransitCharacter. */
+static const AttitudeStance k_stance[NUM_TRANSIT_CHARACTERS] = {
+  [CHAR_HARMONIOUS] = {
+    "harmonious",
+    "You're already meeting the day in the right spirit - lean into "
+    "it rather than second-guessing a favorable position.",
+    "The day itself is working in your favor even though you don't "
+    "feel settled yet - trust the momentum more than your current "
+    "doubts.",
+  },
+  [CHAR_DISCORDANT] = {
+    "discordant",
+    "Your instincts are sound, but the day is testing them - hold "
+    "your position without forcing the issue.",
+    "Both the day and your own footing are unsettled right now - "
+    "this is a moment to steady yourself before pushing forward.",
+  },
+  [CHAR_NEUTRAL] = {
+    "neutral",
+    "Today concentrates whatever you already bring to it - your "
+    "current approach will be amplified, so make sure it's the one "
+    "you want.",
+    "Today intensifies things, including whatever is currently "
+    "unresolved in your own approach - worth sorting out before "
+    "acting.",
+  },
+};
+
+static TransitCharacter classify_transit(AspectType type) {
+  if (type == ASPECT_TRINE || type == ASPECT_SEXTILE) return CHAR_HARMONIOUS;
+  if (type == ASPECT_SQUARE || type == ASPECT_OPPOSITION) return CHAR_DISCORDANT;
+  return CHAR_NEUTRAL;
+}
+
+static const char *stance_text(TransitCharacter character, bool reversed) {
+  const AttitudeStance *s = &k_stance[character];
+  char key[48];
+  snprintf(key, sizeof key, "guidance.stance.%s.%s", s->slug, reversed ? "reversed" : "upright");
+  return i18n_get(key, reversed ? s->reversed : s->upright);
+}
+
+/* How to introduce the top transit, tailored to how strongly it's
+ * scoring (interp->day_level) - independent of the stance sentence
+ * itself (k_stance, above), which is written to stay true regardless of
+ * intensity. Each entry takes exactly one %s: the transiting planet's
+ * display name, always as the sentence's grammatical subject (matters
+ * for German, where the other three day levels put the planet name in
+ * non-nominative position in a naive word-for-word translation - see
+ * engine/i18n/de.lang's guidance.intro.* entries, which are phrased to
+ * avoid that). Fallback (English) text only. */
+static const char *const k_intro_slug[DAY_SIGNIFICANCE_COUNT] = {
+  [DAY_QUIET] = "quiet",
+  [DAY_NOTABLE] = "notable",
+  [DAY_SIGNIFICANT] = "significant",
+  [DAY_MAJOR] = "major",
+};
+
+static const char *const k_intro_fallback[DAY_SIGNIFICANCE_COUNT] = {
+  [DAY_QUIET] = "%s is only faintly active today, but for what it's worth:",
+  [DAY_NOTABLE] = "With a mild touch from %s today:",
+  [DAY_SIGNIFICANT] = "With %s clearly active today:",
+  [DAY_MAJOR] = "With %s as today's dominant influence:",
+};
+
+static const char *intro_template(DaySignificance level) {
+  char key[32];
+  snprintf(key, sizeof key, "guidance.intro.%s", k_intro_slug[level]);
+  return i18n_get(key, k_intro_fallback[level]);
+}
+
+/* Fallback for a day with no aspects in orb at all (top_item_count ==
+ * 0, always DAY_QUIET) - there's no transiting planet to name, so the
+ * guidance falls back to the Attitude card's orientation alone. */
+static const char *no_transit_text(bool reversed) {
+  static const char *const upright =
+    "There's no standout transit today - it's an astrologically quiet "
+    "day. That leaves things mostly about steadiness: trust your "
+    "current footing and use the calm to make headway.";
+  static const char *const reversed_text =
+    "There's no standout transit today - it's an astrologically quiet "
+    "day. That's a good moment to quietly re-settle your own "
+    "footing, since nothing external is forcing the pace.";
+  return i18n_get(reversed ? "guidance.no_transit.reversed" : "guidance.no_transit.upright",
+                   reversed ? reversed_text : upright);
+}
+
+static const char *reversed_marker(bool reversed) {
+  static char buf[32];
+  if (!reversed) return "";
+  snprintf(buf, sizeof buf, " %s", i18n_get("ui.reversed", "(Reversed)"));
+  return buf;
+}
+
+void guidance_print(FILE *out, const char *indent, const DailyInterpretation *interp,
+                     const CelticCrossSpread *spread) {
+  const TarotDraw *attitude = &spread->positions[POSITION_ATTITUDE];
+  const TarotDraw *outcome = &spread->positions[POSITION_OUTCOME];
+
+  if (interp->top_item_count == 0) {
+    fprintf(out, "%s%s\n", indent, no_transit_text(attitude->reversed));
+  } else {
+    const Aspect *top = &interp->top_items[0].aspect;
+    TransitCharacter character = classify_transit(top->type);
+    const char *stance = stance_text(character, attitude->reversed);
+
+    char intro[192];
+    snprintf(intro, sizeof(intro), intro_template(interp->day_level),
+             planet_display_name(top->transiting_planet));
+    fprintf(out, "%s%s %s\n", indent, intro, stance);
+  }
+
+  fprintf(out, "%s%s %s%s: %s\n", indent, i18n_get("guidance.attitude_intro", "Your Attitude card is"),
+          tarot_card_name(attitude->card), reversed_marker(attitude->reversed),
+          tarot_card_meaning(attitude->card, attitude->reversed));
+  fprintf(out, "%s%s %s%s: %s\n", indent, i18n_get("guidance.outcome_intro", "The spread's likely Outcome is"),
+          tarot_card_name(outcome->card), reversed_marker(outcome->reversed),
+          tarot_card_meaning(outcome->card, outcome->reversed));
+}
@@ -0,0 +1,60 @@
+#ifndef DECK_GUIDANCE_H
+#define DECK_GUIDANCE_H
+
+#include <stdio.h>
+
+/* Header-only dependency on the engine for struct/enum *definitions*,
+ * same policy as narrative.h/significance.h - see their comments for
+ * why. Unlike those, though, the root Makefile *does* link
+ * engine/src/tarot_data.c's *implementation* (tarot_card_name()/
+ * tarot_card_meaning()) into the interpreter binary - a deliberate,
+ * narrow exception; see the Makefile's own comment on
+ * INTERP_TAROT_TEXT_OBJS for why that doesn't compromise this module's
+ * independent testability. */
+#include "../../engine/src/tarot.h"
+#include "significance.h"
+
+/* Ties the day's single most significant transit
+ * (interp->top_items[0]) to the Celtic Cross spread, and prints a short
+ * paragraph of concrete guidance on how to meet the day - the "combined
+ * storytelling" piece docs/reading.md flags as future work, now built.
+ * Prints on every day, quiet or major, tailored to interp->day_level -
+ * callers can invoke it unconditionally after every
+ * interpret_daily_reading() call.
+ *
+ * The core guidance keys off two things: the character of the top
+ * transit's aspect (harmonious/discordant/neutral, same classification
+ * narrative.c uses) and whether the spread's Attitude position - Waite's
+ * "Himself: his position or attitude in the circumstances", the
+ * position most directly about how the reader is meeting the day - fell
+ * upright or reversed. That crossing (3 x 2 = 6 combinations) is
+ * original text written for this project, not drawn from Waite or
+ * Sepharial, since neither source discusses combining astrology and
+ * tarot; it stays valid regardless of the day's intensity. What *does*
+ * vary with interp->day_level is only the sentence introducing the top
+ * transit (e.g. "With Saturn as today's dominant influence" on a Major
+ * day vs. "Saturn is only faintly active today, but for what it's
+ * worth" on a Quiet one). A day with no aspects in orb at all
+ * (interp->top_item_count == 0, always DAY_QUIET) has no transiting
+ * planet to introduce, so it falls back to a stance keyed on the
+ * Attitude card's orientation alone.
+ *
+ * The paragraph also names the Attitude and Outcome cards and, via
+ * tarot_card_meaning(), states their actual Waite meaning for the
+ * orientation they landed in (e.g. what Wheel of Fortune reversed
+ * means) - not a duplicated table, the real thing, since tarot_data.c
+ * is linked (see above).
+ *
+ * Every piece of this module's own text (stance/intro/no-transit/label
+ * strings) is looked up via i18n_get() under "guidance.*" keys
+ * (engine/i18n's .lang files) before falling back to the English text baked
+ * into guidance.c, so it respects whatever --lang the caller loaded
+ * with i18n_load() (main.c does so before calling this). The German
+ * guidance.intro.* templates are deliberately phrased so the planet
+ * name placeholder is always the sentence's grammatical subject
+ * (nominative case) across all four day levels - see guidance.c's own
+ * comment on k_intro_fallback. */
+void guidance_print(FILE *out, const char *indent, const DailyInterpretation *interp,
+                     const CelticCrossSpread *spread);
+
+#endif
@@ -1,25 +1,63 @@
+#define _POSIX_C_SOURCE 200809L /* for open_memstream */
+
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

+#include "../../engine/src/i18n.h"
+#include "guidance.h"
 #include "narrative.h"
 #include "reading_io.h"
 #include "significance.h"

+typedef enum { FORMAT_TEXT, FORMAT_HTML, FORMAT_JSON } OutputFormat;
+
 static void print_usage(const char *prog) {
  fprintf(stderr,
-    "Usage: %s [reading.json]\n\n"
+    "Usage: %s [--format text|html|json] [--lang <code>] [--i18n-dir <path>]\n"
+    "          [reading.json]\n\n"
    "Reads a DailyReading in deck-engine's --format json shape - from the\n"
    "given file, or from stdin if no file is given (or it is \"-\") - and\n"
-    "prints a significance report: the day's overall level and the top\n"
-    "aspects driving it, each with a short narrative note.\n\n"
+    "prints a full report: the day's overall significance level, the\n"
+    "top aspects driving it (each with a short narrative note), a full\n"
+    "readout of the Celtic Cross spread with every card's meaning, and\n"
+    "finally guidance tying the day's top transit to the spread's\n"
+    "Attitude/Outcome cards.\n\n"
+    "  --format    Output format, defaults to text. html links card art via\n"
+    "              img/<file>, same convention as deck-engine's own html\n"
+    "              output - save/run this next to the img/ directory\n"
+    "              `make images` copies into dist/. json embeds the same\n"
+    "              narrative/guidance prose as text (in whatever --lang was\n"
+    "              loaded) alongside stable, language-independent slugs.\n"
+    "  --lang      Reading language code, defaults to en. Matches a file\n"
+    "              named <code>.lang in --i18n-dir (see engine/i18n/) -\n"
+    "              note this is this binary's OWN output language, not\n"
+    "              related to whatever --lang deck-engine was run with to\n"
+    "              produce its --format json input (which is always\n"
+    "              language-independent - see docs/input-output-format.md).\n"
+    "  --i18n-dir  Directory to look up <lang>.lang in. Defaults to the\n"
+    "              i18n/ directory next to this binary (`make i18n`\n"
+    "              copies engine/i18n/ there as dist/i18n/).\n\n"
    "Typical use:\n"
    "  dist/deck-engine ... --format json | %s\n"
    "  dist/deck-engine ... --format json > reading.json && %s reading.json\n",
    prog, prog, prog);
 }

+/* Same convention as engine/src/main.c's own default_i18n_path() -
+ * duplicated rather than shared, since the two binaries are never
+ * linked together (see CLAUDE.md's "Interpretation" section). */
+static void default_i18n_path(const char *argv0, const char *lang, char *out, size_t out_size) {
+  const char *slash = strrchr(argv0, '/');
+  if (slash) {
+    int dir_len = (int)(slash - argv0);
+    snprintf(out, out_size, "%.*s/i18n/%s.lang", dir_len, argv0, lang);
+  } else {
+    snprintf(out, out_size, "i18n/%s.lang", lang);
+  }
+}
+
 static char *read_all(FILE *f, size_t *out_length) {
  size_t cap = 4096;
  size_t len = 0;
@@ -39,63 +77,391 @@ static char *read_all(FILE *f, size_t *out_length) {
  return buf;
 }

-/* Display names for the report - deliberately a small local table rather
- * than linking engine/src/astro.c's astro_body_name()/astro_aspect_name()
- * (which would pull in the vendored Astronomy Engine just for cosmetic
- * text). Same policy as reading_io.c's slug tables. */
+static const char *ui(const char *key, const char *fallback) { return i18n_get(key, fallback); }
+
+/* Slugs for i18n key building (body.<slug>/sign.<slug>/aspect.<slug>,
+ * mirroring astro.c's own tables) and reused as-is for --format json's
+ * language-independent fields - deliberately a small local table rather
+ * than linking astro.c (would pull in the vendored Astronomy Engine just
+ * for cosmetic text/slugs). Same policy as reading_io.c's own tables. */
+static const char *const k_body_slug[NUM_BODIES] = {
+  "sun", "moon", "mercury", "venus", "mars",
+  "jupiter", "saturn", "uranus", "neptune", "pluto",
+};
+static const char *const k_sign_slug[12] = {
+  "aries", "taurus", "gemini", "cancer", "leo", "virgo",
+  "libra", "scorpio", "sagittarius", "capricorn", "aquarius", "pisces",
+};
+static const char *const k_aspect_slug[5] = {
+  "conjunction", "sextile", "square", "trine", "opposition",
+};
+static const char *const k_day_level_slug[DAY_SIGNIFICANCE_COUNT] = {
+  "quiet", "notable", "significant", "major",
+};
+
 static const char *body_display_name(Body body) {
-  static const char *const names[NUM_BODIES] = {
+  static const char *const fallback[NUM_BODIES] = {
    "Sun", "Moon", "Mercury", "Venus", "Mars",
    "Jupiter", "Saturn", "Uranus", "Neptune", "Pluto",
  };
-  return names[body];
+  char key[32];
+  snprintf(key, sizeof key, "body.%s", k_body_slug[body]);
+  return ui(key, fallback[body]);
 }

 static const char *aspect_display_name(AspectType type) {
-  static const char *const names[5] = {
+  static const char *const fallback[5] = {
    "Conjunction", "Sextile", "Square", "Trine", "Opposition",
  };
-  return names[type];
+  char key[32];
+  snprintf(key, sizeof key, "aspect.%s", k_aspect_slug[type]);
+  return ui(key, fallback[type]);
 }

 static const char *sign_display_name(ZodiacSign sign) {
-  static const char *const names[12] = {
+  static const char *const fallback[12] = {
    "Aries", "Taurus", "Gemini", "Cancer", "Leo", "Virgo",
    "Libra", "Scorpio", "Sagittarius", "Capricorn", "Aquarius", "Pisces",
  };
-  return names[sign];
+  char key[32];
+  snprintf(key, sizeof key, "sign.%s", k_sign_slug[sign]);
+  return ui(key, fallback[sign]);
+}
+
+static const char *day_level_name(DaySignificance level) {
+  switch (level) {
+    case DAY_QUIET: return ui("interp.day_level.quiet", "Quiet");
+    case DAY_NOTABLE: return ui("interp.day_level.notable", "Notable");
+    case DAY_SIGNIFICANT: return ui("interp.day_level.significant", "Significant");
+    case DAY_MAJOR: return ui("interp.day_level.major", "Major");
+    default: return "Unknown";
+  }
+}
+
+static const char *reversed_marker(bool reversed) {
+  static char buf[32];
+  if (!reversed) return "";
+  snprintf(buf, sizeof buf, " %s", ui("ui.reversed", "(Reversed)"));
+  return buf;
 }

 /* pos->house is 0 when reading_load_json had no sign/house data for this
 * body (see parse_bodies() in reading_io.c) - a valid whole-sign house
 * is always 1-12, so this is a safe "unknown, say nothing" sentinel. */
-static void print_body_in_sign(const PlanetPosition *pos) {
+static void print_body_in_sign_text(FILE *out, const PlanetPosition *pos) {
  if (pos->house < 1 || pos->house > 12) return;
-  printf(" in %s (house %d)", sign_display_name(pos->sign), pos->house);
+  char buf[64];
+  snprintf(buf, sizeof buf, ui("interp.in_sign_house", "in %s (house %d)"),
+           sign_display_name(pos->sign), pos->house);
+  fprintf(out, " %s", buf);
 }

-static const char *day_level_name(DaySignificance level) {
-  switch (level) {
-    case DAY_QUIET: return "Quiet";
-    case DAY_NOTABLE: return "Notable";
-    case DAY_SIGNIFICANT: return "Significant";
-    case DAY_MAJOR: return "Major";
+/* Captures narrative_print()/guidance_print()'s output (they only know
+ * how to write to a FILE*) into a heap string, for embedding into JSON -
+ * avoids changing either module's public API just for this one caller.
+ * Strips a single trailing newline; caller must free() the result. */
+static char *capture_narrative(const Aspect *aspect, int house) {
+  char *buf = NULL;
+  size_t size = 0;
+  FILE *mem = open_memstream(&buf, &size);
+  narrative_print(mem, "", aspect, house);
+  fclose(mem);
+  if (size > 0 && buf[size - 1] == '\n') buf[size - 1] = '\0';
+  return buf;
+}
+
+static char *capture_guidance(const DailyInterpretation *interp, const CelticCrossSpread *spread) {
+  char *buf = NULL;
+  size_t size = 0;
+  FILE *mem = open_memstream(&buf, &size);
+  guidance_print(mem, "", interp, spread);
+  fclose(mem);
+  if (size > 0 && buf[size - 1] == '\n') buf[size - 1] = '\0';
+  return buf;
+}
+
+static void print_top_transits_header(FILE *out, int count) {
+  if (count == 1) {
+    fprintf(out, "%s\n", ui("interp.top_transits.one", "Top significant transit:"));
+  } else {
+    char buf[64];
+    snprintf(buf, sizeof buf, ui("interp.top_transits.many", "Top %d significant transits:"), count);
+    fprintf(out, "%s\n", buf);
  }
-  return "Unknown";
+}
+
+/* ===== --format text ===== */
+
+static void print_celtic_cross_text(FILE *out, const CelticCrossSpread *spread) {
+  fprintf(out, "%s:\n", ui("ui.celtic_cross", "Celtic Cross"));
+  for (int i = 0; i < TAROT_SPREAD_SIZE; i++) {
+    const TarotDraw *draw = &spread->positions[i];
+    fprintf(out, "  %d. %s: %s%s\n", i + 1, tarot_position_name((CelticCrossPosition)i),
+            tarot_card_name(draw->card), reversed_marker(draw->reversed));
+    fprintf(out, "     %s\n", tarot_position_description((CelticCrossPosition)i));
+    fprintf(out, "     %s\n", tarot_card_meaning(draw->card, draw->reversed));
+  }
+}
+
+static void interp_print_text(FILE *out, const DailyReading *reading, const DailyInterpretation *interp) {
+  fprintf(out, "%s %s (%d/%d)\n", ui("interp.day_significance", "Day significance:"),
+          day_level_name(interp->day_level), interp->day_level + 1, DAY_SIGNIFICANCE_COUNT);
+  if (interpretation_deserves_framing(interp)) {
+    fprintf(out, "%s\n", ui("interp.major_framing",
+                             "(a major transit today - worth a deeper Celtic Cross look)"));
+  }
+  fprintf(out, "\n");
+
+  if (interp->top_item_count == 0) {
+    fprintf(out, "%s\n", ui("interp.no_notable_transits", "No notable transits today."));
+  } else {
+    print_top_transits_header(out, interp->top_item_count);
+    for (int i = 0; i < interp->top_item_count; i++) {
+      const SignificantItem *item = &interp->top_items[i];
+      const Aspect *a = &item->aspect;
+
+      fprintf(out, "  %d. %s %s", i + 1, ui("ui.transiting", "Transiting"),
+              body_display_name(a->transiting_planet));
+      print_body_in_sign_text(out, &reading->transits.bodies[a->transiting_planet]);
+      fprintf(out, " %s %s %s", aspect_display_name(a->type), ui("ui.natal", "natal"),
+              body_display_name(a->natal_planet));
+      print_body_in_sign_text(out, &reading->natal.bodies[a->natal_planet]);
+      fprintf(out, " (%s %.1f\xc2\xb0, %s %.2f)\n", ui("ui.orb", "orb"), a->orb,
+              ui("interp.score", "score"), item->score);
+      narrative_print(out, "     ", a, reading->transits.bodies[a->transiting_planet].house);
+    }
+  }
+  fprintf(out, "\n");
+
+  print_celtic_cross_text(out, &reading->spread);
+  fprintf(out, "\n");
+
+  guidance_print(out, "", interp, &reading->spread);
+}
+
+/* ===== --format html ===== */
+
+static void interp_print_html(FILE *out, const DailyReading *reading, const DailyInterpretation *interp) {
+  fprintf(out,
+    "<!doctype html>\n<html><head><meta charset=\"utf-8\">\n"
+    "<title>%s</title>\n"
+    "<style>\n"
+    "body { font-family: sans-serif; max-width: 900px; margin: 2em auto; }\n"
+    "table { border-collapse: collapse; margin-bottom: 1.5em; }\n"
+    "td { padding: 2px 10px 2px 0; }\n"
+    "h1, h2 { border-bottom: 1px solid #ccc; }\n"
+    ".spread { display: flex; flex-wrap: wrap; gap: 1.5em; }\n"
+    ".card { width: 160px; }\n"
+    ".card img { width: 140px; display: block; }\n"
+    ".card img.reversed { transform: rotate(180deg); }\n"
+    ".card .position { font-weight: bold; }\n"
+    ".card .name { font-style: italic; }\n"
+    ".guidance { background: #f6f6f6; padding: 1em; border-radius: 6px; }\n"
+    "</style></head><body>\n",
+    ui("interp.page_title", "Deck in a Dash - Interpretation"));
+
+  fprintf(out, "<h1>%s</h1>\n", ui("interp.heading", "Daily Interpretation"));
+
+  fprintf(out, "<h2>%s</h2>\n<p>%s %s (%d/%d)",
+          ui("interp.heading_day_significance", "Day Significance"),
+          ui("interp.day_significance", "Day significance:"), day_level_name(interp->day_level),
+          interp->day_level + 1, DAY_SIGNIFICANCE_COUNT);
+  if (interpretation_deserves_framing(interp)) {
+    fprintf(out, "<br>%s", ui("interp.major_framing",
+                               "(a major transit today - worth a deeper Celtic Cross look)"));
+  }
+  fprintf(out, "</p>\n");
+
+  fprintf(out, "<h2>%s</h2>\n", ui("interp.heading_transits", "Significant Transits"));
+  if (interp->top_item_count == 0) {
+    fprintf(out, "<p>%s</p>\n", ui("interp.no_notable_transits", "No notable transits today."));
+  } else {
+    fprintf(out, "<table>\n");
+    for (int i = 0; i < interp->top_item_count; i++) {
+      const SignificantItem *item = &interp->top_items[i];
+      const Aspect *a = &item->aspect;
+      char *text = capture_narrative(a, reading->transits.bodies[a->transiting_planet].house);
+
+      fprintf(out, "<tr><td>%d.</td><td>%s %s %s %s %s</td>"
+                   "<td>%s %.1f&deg;, %s %.2f</td></tr>\n",
+              i + 1, ui("ui.transiting", "Transiting"), body_display_name(a->transiting_planet),
+              aspect_display_name(a->type), ui("ui.natal", "natal"),
+              body_display_name(a->natal_planet), ui("ui.orb", "orb"), a->orb,
+              ui("interp.score", "score"), item->score);
+      if (text[0] != '\0') fprintf(out, "<tr><td></td><td colspan=\"2\">%s</td></tr>\n", text);
+      free(text);
+    }
+    fprintf(out, "</table>\n");
+  }
+
+  fprintf(out, "<h2>%s</h2>\n<div class=\"spread\">\n", ui("ui.celtic_cross", "Celtic Cross"));
+  for (int i = 0; i < TAROT_SPREAD_SIZE; i++) {
+    const TarotDraw *draw = &reading->spread.positions[i];
+    fprintf(out,
+      "<div class=\"card\">\n"
+      "  <div class=\"position\">%s</div>\n"
+      "  <img class=\"%s\" src=\"img/%s\" alt=\"%s\">\n"
+      "  <div class=\"name\">%s%s</div>\n"
+      "  <div class=\"desc\">%s</div>\n"
+      "  <div class=\"meaning\">%s</div>\n"
+      "</div>\n",
+      tarot_position_name((CelticCrossPosition)i), draw->reversed ? "reversed" : "",
+      tarot_card_image_file(draw->card), tarot_card_name(draw->card), tarot_card_name(draw->card),
+      reversed_marker(draw->reversed), tarot_position_description((CelticCrossPosition)i),
+      tarot_card_meaning(draw->card, draw->reversed));
+  }
+  fprintf(out, "</div>\n");
+
+  char *guidance = capture_guidance(interp, &reading->spread);
+  fprintf(out, "<h2>%s</h2>\n<div class=\"guidance\">\n", ui("interp.heading_guidance", "Guidance"));
+  const char *start = guidance;
+  for (const char *p = guidance; ; p++) {
+    if (*p == '\n' || *p == '\0') {
+      if (p > start) fprintf(out, "<p>%.*s</p>\n", (int)(p - start), start);
+      if (*p == '\0') break;
+      start = p + 1;
+    }
+  }
+  free(guidance);
+  fprintf(out, "</div>\n");
+
+  fprintf(out, "</body></html>\n");
+}
+
+/* ===== --format json ===== */
+
+static void json_string(FILE *out, const char *s) {
+  fputc('"', out);
+  for (; *s; s++) {
+    unsigned char c = (unsigned char)*s;
+    switch (c) {
+      case '"': fputs("\\\"", out); break;
+      case '\\': fputs("\\\\", out); break;
+      case '\n': fputs("\\n", out); break;
+      case '\r': fputs("\\r", out); break;
+      case '\t': fputs("\\t", out); break;
+      default:
+        if (c < 0x20) fprintf(out, "\\u%04x", c);
+        else fputc((char)c, out);
+    }
+  }
+  fputc('"', out);
+}
+
+static void interp_print_json(FILE *out, const DailyReading *reading, const DailyInterpretation *interp) {
+  fprintf(out, "{\n");
+
+  fprintf(out, "  \"day_significance\": {\n");
+  fprintf(out, "    \"level\": \"%s\",\n", k_day_level_slug[interp->day_level]);
+  fprintf(out, "    \"rank\": %d,\n", interp->day_level + 1);
+  fprintf(out, "    \"count\": %d,\n", DAY_SIGNIFICANCE_COUNT);
+  fprintf(out, "    \"deserves_framing\": %s\n", interpretation_deserves_framing(interp) ? "true" : "false");
+  fprintf(out, "  },\n");
+
+  fprintf(out, "  \"significant_transits\": [\n");
+  for (int i = 0; i < interp->top_item_count; i++) {
+    const SignificantItem *item = &interp->top_items[i];
+    const Aspect *a = &item->aspect;
+    const PlanetPosition *tp = &reading->transits.bodies[a->transiting_planet];
+    const PlanetPosition *np = &reading->natal.bodies[a->natal_planet];
+    char *text = capture_narrative(a, tp->house);
+
+    fprintf(out, "    {\n");
+    fprintf(out, "      \"transiting_planet\": \"%s\",\n", k_body_slug[a->transiting_planet]);
+    fprintf(out, "      \"transiting_sign\": \"%s\",\n", k_sign_slug[tp->sign]);
+    fprintf(out, "      \"transiting_house\": %d,\n", tp->house);
+    fprintf(out, "      \"natal_planet\": \"%s\",\n", k_body_slug[a->natal_planet]);
+    fprintf(out, "      \"natal_sign\": \"%s\",\n", k_sign_slug[np->sign]);
+    fprintf(out, "      \"natal_house\": %d,\n", np->house);
+    fprintf(out, "      \"aspect\": \"%s\",\n", k_aspect_slug[a->type]);
+    fprintf(out, "      \"orb\": %.4f,\n", a->orb);
+    fprintf(out, "      \"score\": %.4f,\n", item->score);
+    fprintf(out, "      \"narrative\": ");
+    json_string(out, text);
+    fprintf(out, "\n    }%s\n", i + 1 < interp->top_item_count ? "," : "");
+    free(text);
+  }
+  fprintf(out, "  ],\n");
+
+  fprintf(out, "  \"celtic_cross\": [\n");
+  for (int i = 0; i < TAROT_SPREAD_SIZE; i++) {
+    const TarotDraw *draw = &reading->spread.positions[i];
+    fprintf(out, "    {\"position\": \"%s\", \"card\": \"%s\", \"reversed\": %s, \"card_name\": ",
+            tarot_position_slug((CelticCrossPosition)i), tarot_card_slug(draw->card),
+            draw->reversed ? "true" : "false");
+    json_string(out, tarot_card_name(draw->card));
+    fprintf(out, ", \"meaning\": ");
+    json_string(out, tarot_card_meaning(draw->card, draw->reversed));
+    fprintf(out, "}%s\n", i + 1 < TAROT_SPREAD_SIZE ? "," : "");
+  }
+  fprintf(out, "  ],\n");
+
+  char *guidance = capture_guidance(interp, &reading->spread);
+  fprintf(out, "  \"guidance\": ");
+  json_string(out, guidance);
+  fprintf(out, "\n");
+  free(guidance);
+
+  fprintf(out, "}\n");
 }

 int main(int argc, char **argv) {
-  if (argc > 2 || (argc == 2 && (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-h") == 0))) {
-    print_usage(argv[0]);
-    return argc > 2 ? 1 : 0;
+  const char *format_str = "text";
+  const char *lang = "en", *i18n_dir_arg = NULL;
+  const char *input_path = NULL;
+
+  for (int i = 1; i < argc; i++) {
+    const char *arg = argv[i];
+    if (strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0) {
+      print_usage(argv[0]);
+      return 0;
+    } else if (strcmp(arg, "--format") == 0) {
+      if (++i >= argc) { print_usage(argv[0]); return 1; }
+      format_str = argv[i];
+    } else if (strcmp(arg, "--lang") == 0) {
+      if (++i >= argc) { print_usage(argv[0]); return 1; }
+      lang = argv[i];
+    } else if (strcmp(arg, "--i18n-dir") == 0) {
+      if (++i >= argc) { print_usage(argv[0]); return 1; }
+      i18n_dir_arg = argv[i];
+    } else if (arg[0] == '-' && strcmp(arg, "-") != 0) {
+      fprintf(stderr, "Unknown argument: %s\n", arg);
+      print_usage(argv[0]);
+      return 1;
+    } else if (input_path == NULL) {
+      input_path = arg;
+    } else {
+      print_usage(argv[0]);
+      return 1;
+    }
+  }
+
+  OutputFormat format;
+  if (strcmp(format_str, "text") == 0) format = FORMAT_TEXT;
+  else if (strcmp(format_str, "html") == 0) format = FORMAT_HTML;
+  else if (strcmp(format_str, "json") == 0) format = FORMAT_JSON;
+  else {
+    fprintf(stderr, "Invalid --format, expected text, html, or json\n");
+    return 1;
+  }
+
+  char i18n_path[512];
+  if (i18n_dir_arg) {
+    snprintf(i18n_path, sizeof i18n_path, "%s/%s.lang", i18n_dir_arg, lang);
+  } else {
+    default_i18n_path(argv[0], lang, i18n_path, sizeof i18n_path);
+  }
+  if (!i18n_load(i18n_path) && strcmp(lang, "en") != 0) {
+    fprintf(stderr, "warning: could not load translations for '%s' from %s - "
+                     "falling back to built-in English\n", lang, i18n_path);
  }

  FILE *in = stdin;
  bool opened_file = false;
-  if (argc == 2 && strcmp(argv[1], "-") != 0) {
-    in = fopen(argv[1], "r");
+  if (input_path && strcmp(input_path, "-") != 0) {
+    in = fopen(input_path, "r");
    if (!in) {
-      fprintf(stderr, "error: could not open %s\n", argv[1]);
+      fprintf(stderr, "error: could not open %s\n", input_path);
      return 1;
    }
    opened_file = true;
@@ -116,30 +482,12 @@ int main(int argc, char **argv) {
  DailyInterpretation interp;
  interpret_daily_reading(&reading, &interp);

-  printf("Day significance: %s (%d/%d)\n", day_level_name(interp.day_level),
-         interp.day_level + 1, DAY_SIGNIFICANCE_COUNT);
-  if (interpretation_deserves_framing(&interp)) {
-    printf("(a major transit today - worth a deeper Celtic Cross look)\n");
-  }
-  printf("\n");
-
-  if (interp.top_item_count == 0) {
-    printf("No notable transits today.\n");
-    return 0;
-  }
-
-  printf("Top %d significant transit%s:\n", interp.top_item_count,
-         interp.top_item_count == 1 ? "" : "s");
-  for (int i = 0; i < interp.top_item_count; i++) {
-    const SignificantItem *item = &interp.top_items[i];
-    const Aspect *a = &item->aspect;
-
-    printf("  %d. Transiting %s", i + 1, body_display_name(a->transiting_planet));
-    print_body_in_sign(&reading.transits.bodies[a->transiting_planet]);
-    printf(" %s natal %s", aspect_display_name(a->type), body_display_name(a->natal_planet));
-    print_body_in_sign(&reading.natal.bodies[a->natal_planet]);
-    printf(" (orb %.1f\xc2\xb0, score %.2f)\n", a->orb, item->score);
-    narrative_print(stdout, "     ", a, reading.transits.bodies[a->transiting_planet].house);
+  if (format == FORMAT_HTML) {
+    interp_print_html(stdout, &reading, &interp);
+  } else if (format == FORMAT_JSON) {
+    interp_print_json(stdout, &reading, &interp);
+  } else {
+    interp_print_text(stdout, &reading, &interp);
  }
  return 0;
 }
@@ -1,86 +1,103 @@
 #include "narrative.h"

 #include <stdbool.h>
+#include <stdio.h>
+
+/* i18n_get() only - narrative.h already pulls in astro.h; this is the
+ * one additional engine header needed to route k_narratives/
+ * k_house_area through the same translation catalog tarot_data.c uses
+ * (see the Makefile's INTERP_TAROT_TEXT_OBJS comment for why i18n.c is
+ * linked into this binary). */
+#include "../../engine/src/i18n.h"

 typedef struct {
+  const char *slug;        /* builds "narrative.<slug>.*" i18n keys */
  const char *base;        /* always relevant, may be "" (see the Sun) */
  const char *harmonious;  /* shown only under a trine/sextile; may be "" */
  const char *discordant;  /* shown only under a square/opposition; may be "" */
 } TransitNarrative;

-/* See narrative.h's doc comment for sourcing (Sepharial, "Transits and
- * Planetary Periods", 1920, Chapter VIII) and the Moon/Pluto exception. */
+/* Fallback (English) text, also the source of truth when no translation
+ * catalog is loaded - see narrative.h's doc comment for sourcing
+ * (Sepharial, "Transits and Planetary Periods", 1920, Chapter VIII) and
+ * the Moon/Pluto exception. German translations live in
+ * engine/i18n/de.lang under the same "narrative.<slug>.*" keys. */
 static const TransitNarrative k_narratives[NUM_BODIES] = {
  [PLANET_SUN] = {
-    .base = "",
-    .harmonious = "Benefits from superiors and advancement in your sphere of "
-                  "life and work - honours, emoluments, and successful new "
-                  "associations.",
-    .discordant = "Degradation and dishonour, loss of position, and adverse "
-                  "judgement from superiors.",
+    "sun", "",
+    "Benefits from superiors and advancement in your sphere of "
+    "life and work - honours, emoluments, and successful new "
+    "associations.",
+    "Degradation and dishonour, loss of position, and adverse "
+    "judgement from superiors.",
  },
  [PLANET_MOON] = {
    /* Original text, not from Sepharial - see narrative.h. */
-    .base = "Colours the everyday and domestic sphere of life, often "
-            "coinciding with the opening of new avenues.",
-    .harmonious = "These changes tend to be advantageous.",
-    .discordant = "These changes tend to be adverse, with some indisposition "
-                  "or domestic friction.",
+    "moon",
+    "Colours the everyday and domestic sphere of life, often "
+    "coinciding with the opening of new avenues.",
+    "These changes tend to be advantageous.",
+    "These changes tend to be adverse, with some indisposition "
+    "or domestic friction.",
  },
  [PLANET_MERCURY] = {
-    .base = "Affects writings, journeys, commerce, and everyday activities - "
-            "a neutral messenger whose effect follows the nature of the "
-            "aspect it makes.",
-    .harmonious = "",
-    .discordant = "",
+    "mercury",
+    "Affects writings, journeys, commerce, and everyday activities - "
+    "a neutral messenger whose effect follows the nature of the "
+    "aspect it makes.",
+    "", "",
  },
  [PLANET_VENUS] = {
-    .base = "Brings domestic and social affairs to the fore - happiness, "
-            "comforts, and favours.",
-    .harmonious = "Success in love affairs and artistic pursuits is likely.",
-    .discordant = "Grief and disappointment are more likely.",
+    "venus",
+    "Brings domestic and social affairs to the fore - happiness, "
+    "comforts, and favours.",
+    "Success in love affairs and artistic pursuits is likely.",
+    "Grief and disappointment are more likely.",
  },
  [PLANET_MARS] = {
-    .base = "A strenuous time of quarrels, contention, strife and anger, with "
-            "some risk of hurts or injuries depending on the sign it "
-            "occupies.",
-    .harmonious = "Can bring benefits from doctors, surgeons, or new projects "
-                  "and enterprises.",
-    .discordant = "",
+    "mars",
+    "A strenuous time of quarrels, contention, strife and anger, with "
+    "some risk of hurts or injuries depending on the sign it "
+    "occupies.",
+    "Can bring benefits from doctors, surgeons, or new projects "
+    "and enterprises.",
+    "",
  },
  [PLANET_JUPITER] = {
-    .base = "Brings increase and expansion - fullness of fortune and health, "
-            "and a generally fortunate time.",
-    .harmonious = "",
-    .discordant = "",
+    "jupiter",
+    "Brings increase and expansion - fullness of fortune and health, "
+    "and a generally fortunate time.",
+    "", "",
  },
  [PLANET_SATURN] = {
-    .base = "Brings depression, stagnation, hindrances and obstacles, and "
-            "some deprivation of the usual benefits.",
-    .harmonious = "Favours from older connections and past associations are "
-                  "still possible.",
-    .discordant = "",
+    "saturn",
+    "Brings depression, stagnation, hindrances and obstacles, and "
+    "some deprivation of the usual benefits.",
+    "Favours from older connections and past associations are "
+    "still possible.",
+    "",
  },
  [PLANET_URANUS] = {
-    .base = "Brings separations, estrangements, sudden dislocations and "
-            "violent upsets.",
-    .harmonious = "Success through official or civic channels, and "
-                  "beneficial changes or appointments, are possible.",
-    .discordant = "",
+    "uranus",
+    "Brings separations, estrangements, sudden dislocations and "
+    "violent upsets.",
+    "Success through official or civic channels, and "
+    "beneficial changes or appointments, are possible.",
+    "",
  },
  [PLANET_NEPTUNE] = {
-    .base = "Brings a state of chaos and confusion - an involved, uncertain "
-            "condition of affairs, with plots, subtlety, or unseen "
-            "influences at work.",
-    .harmonious = "",
-    .discordant = "",
+    "neptune",
+    "Brings a state of chaos and confusion - an involved, uncertain "
+    "condition of affairs, with plots, subtlety, or unseen "
+    "influences at work.",
+    "", "",
  },
  [PLANET_PLUTO] = {
    /* Original text, not from Sepharial - see narrative.h. */
-    .base = "Brings deep, often hidden transformation - the surfacing or "
-            "dismantling of something that has outgrown its old form.",
-    .harmonious = "",
-    .discordant = "",
+    "pluto",
+    "Brings deep, often hidden transformation - the surfacing or "
+    "dismantling of something that has outgrown its old form.",
+    "", "",
  },
 };

@@ -96,7 +113,8 @@ static bool aspect_is_discordant(AspectType type) {
 * house governs. This is centuries-old, uncredited astrological
 * convention (the same status as the sign/aspect names already baked
 * into engine/src/astro.c), not text drawn from Sepharial or any other
- * single source. Indexed house - 1. */
+ * single source. Indexed house - 1; fallback (English) text only, keyed
+ * as "narrative.house.<1-12>" in engine/i18n's .lang files. */
 static const char *const k_house_area[12] = {
  "your sense of self, identity, and outward appearance",
  "money, possessions, and personal values",
@@ -112,22 +130,35 @@ static const char *const k_house_area[12] = {
  "solitude, the subconscious, and hidden matters",
 };

+static const char *narrative_field(const char *slug, const char *field, const char *fallback) {
+  char key[48];
+  snprintf(key, sizeof key, "narrative.%s.%s", slug, field);
+  return i18n_get(key, fallback);
+}
+
 void narrative_print(FILE *out, const char *indent, const Aspect *aspect,
                      int transiting_house) {
  const TransitNarrative *n = &k_narratives[aspect->transiting_planet];
+  const char *base = narrative_field(n->slug, "base", n->base);

  const char *extra = "";
-  if (aspect_is_harmonious(aspect->type)) extra = n->harmonious;
-  else if (aspect_is_discordant(aspect->type)) extra = n->discordant;
+  if (aspect_is_harmonious(aspect->type)) extra = narrative_field(n->slug, "harmonious", n->harmonious);
+  else if (aspect_is_discordant(aspect->type)) extra = narrative_field(n->slug, "discordant", n->discordant);

-  if (n->base[0] == '\0' && extra[0] == '\0') return;
+  if (base[0] == '\0' && extra[0] == '\0') return;

  fprintf(out, "%s", indent);
  if (transiting_house >= 1 && transiting_house <= 12) {
-    fprintf(out, "In matters of %s (house %d). ",
-            k_house_area[transiting_house - 1], transiting_house);
+    char house_key[24];
+    snprintf(house_key, sizeof house_key, "narrative.house.%d", transiting_house);
+    const char *area = i18n_get(house_key, k_house_area[transiting_house - 1]);
+
+    char frame[256];
+    snprintf(frame, sizeof frame, i18n_get("narrative.house_frame", "In matters of %s (house %d)."),
+             area, transiting_house);
+    fprintf(out, "%s ", frame);
  }
-  if (n->base[0] != '\0') fprintf(out, "%s", n->base);
-  if (extra[0] != '\0') fprintf(out, "%s%s", n->base[0] != '\0' ? " " : "", extra);
+  if (base[0] != '\0') fprintf(out, "%s", base);
+  if (extra[0] != '\0') fprintf(out, "%s%s", base[0] != '\0' ? " " : "", extra);
  fprintf(out, "\n");
 }
@@ -39,7 +39,13 @@
 * personalized way transits are read (see astro.h's own house-field
 * comment). Pass a value outside 1-12 (e.g. the "no data" sentinel `0`
 * used elsewhere - see reading_io.c's parse_bodies()) to omit that
- * framing and print the planet's narrative on its own. */
+ * framing and print the planet's narrative on its own.
+ *
+ * Every string here is looked up via i18n_get() under "narrative.*"
+ * keys (engine/i18n's .lang files) before falling back to the English text
+ * baked into narrative.c, the same catalog tarot_data.c uses - so this
+ * text respects whatever --lang the caller loaded with i18n_load()
+ * (main.c does so before calling this). */
 void narrative_print(FILE *out, const char *indent, const Aspect *aspect,
                      int transiting_house);

@@ -22,6 +22,20 @@ static const char *const k_sign_slug[12] = {
  "libra", "scorpio", "sagittarius", "capricorn", "aquarius", "pisces",
 };

+/* Mirrors tarot_data.c's own k_card_slug/k_position_slug, same
+ * duplication policy as k_body_slug above. */
+static const char *const k_card_slug[TAROT_DECK_SIZE] = {
+  "fool", "magician", "high_priestess", "empress", "emperor", "hierophant",
+  "lovers", "chariot", "strength", "hermit", "wheel_of_fortune", "justice",
+  "hanged_man", "death", "temperance", "devil", "tower", "star", "moon",
+  "sun", "judgement", "world",
+};
+
+static const char *const k_position_slug[TAROT_SPREAD_SIZE] = {
+  "present", "challenge", "crown", "foundation", "recent_past",
+  "near_future", "attitude", "environment", "hopes_and_fears", "outcome",
+};
+
 static bool body_from_slug(const char *slug, Body *out) {
  for (int i = 0; i < NUM_BODIES; i++) {
    if (strcmp(slug, k_body_slug[i]) == 0) {
@@ -77,6 +91,48 @@ static bool aspect_type_from_slug(const char *slug, AspectType *out) {
  return false;
 }

+static bool card_from_slug(const char *slug, TarotCard *out) {
+  for (int i = 0; i < TAROT_DECK_SIZE; i++) {
+    if (strcmp(slug, k_card_slug[i]) == 0) {
+      *out = (TarotCard)i;
+      return true;
+    }
+  }
+  return false;
+}
+
+static bool position_from_slug(const char *slug, CelticCrossPosition *out) {
+  for (int i = 0; i < TAROT_SPREAD_SIZE; i++) {
+    if (strcmp(slug, k_position_slug[i]) == 0) {
+      *out = (CelticCrossPosition)i;
+      return true;
+    }
+  }
+  return false;
+}
+
+/* Fills out->positions[] from a "spread"."positions" JSON array. Used only
+ * for guidance_print()'s Attitude/Outcome framing, never for scoring, so
+ * this is deliberately lenient like parse_bodies(): an entry with an
+ * unrecognized/missing "position" or "card" slug is skipped, and a
+ * missing "spread" key entirely just leaves every position zeroed
+ * (card = the first enum value, reversed = false) rather than failing
+ * the whole load. */
+static void parse_spread(const JsonValue *positions, CelticCrossSpread *out) {
+  int count = json_array_count(positions);
+  for (int i = 0; i < count; i++) {
+    const JsonValue *item = json_array_get(positions, i);
+    CelticCrossPosition position;
+    TarotCard card;
+    if (!position_from_slug(json_as_string(json_object_get(item, "position")), &position)) continue;
+    if (!card_from_slug(json_as_string(json_object_get(item, "card")), &card)) continue;
+
+    out->positions[position].card = card;
+    const JsonValue *reversed = json_object_get(item, "reversed");
+    out->positions[position].reversed = reversed && reversed->type == JSON_BOOL && reversed->as.boolean;
+  }
+}
+
 bool reading_load_json(const char *text, size_t length, DailyReading *out) {
  memset(out, 0, sizeof(*out));

@@ -122,6 +178,9 @@ bool reading_load_json(const char *text, size_t length, DailyReading *out) {
  parse_bodies(natal ? json_object_get(natal, "bodies") : NULL, out->natal.bodies);
  parse_bodies(json_object_get(transits, "bodies"), out->transits.bodies);

+  const JsonValue *spread = json_object_get(root, "spread");
+  parse_spread(spread ? json_object_get(spread, "positions") : NULL, &out->spread);
+
  json_free(root);
  return ok;
 }
@@ -10,18 +10,21 @@

 /* Parses deck-engine's `--format json` output (text, null-terminated at
 * text[length]) and fills *out with just enough of a DailyReading for
- * interpret_daily_reading() to work on and for reporting sign/house
- * context around each significant event: out->transits.aspects[]/
- * aspect_count (used for scoring - see significance.c), and
- * out->natal.bodies[]/out->transits.bodies[] (sign + house per body,
- * used only for display). out->natal.ascendant_longitude/houses[] and
- * out->spread are left zeroed - nothing reads them yet.
+ * interpret_daily_reading() to work on, for reporting sign/house context
+ * around each significant event, and for guidance_print()'s tarot
+ * framing: out->transits.aspects[]/aspect_count (used for scoring - see
+ * significance.c), out->natal.bodies[]/out->transits.bodies[] (sign +
+ * house per body, used only for display), and out->spread.positions[]
+ * (card + reversed per Celtic Cross position, used only by
+ * guidance.c). out->natal.ascendant_longitude/houses[] are left zeroed -
+ * nothing reads them yet.
 *
 * Returns false on malformed JSON, or if "transits"."aspects" isn't
 * present as an array (an empty array is fine - that's a real "no
- * aspects today" reading, not an error). A missing/unrecognized entry
- * in "natal"."bodies"/"transits"."bodies" is not an error - see
- * parse_bodies() in reading_io.c. */
+ * aspects today" reading, not an error). A missing/unrecognized entry in
+ * "natal"."bodies"/"transits"."bodies"/"spread"."positions", or a
+ * missing "spread" key entirely, is not an error - see parse_bodies()/
+ * parse_spread() in reading_io.c. */
 bool reading_load_json(const char *text, size_t length, DailyReading *out);

 #endif
@@ -0,0 +1,219 @@
+#define _POSIX_C_SOURCE 200809L /* for mkstemp/fdopen */
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "../../engine/src/i18n.h"
+#include "../src/guidance.h"
+
+static const char *slurp(FILE *f) {
+  static char buf[4096];
+  long len = ftell(f);
+  rewind(f);
+  size_t n = fread(buf, 1, (size_t)len, f);
+  buf[n] = '\0';
+  return buf;
+}
+
+static DailyInterpretation make_interp(DaySignificance level, AspectType type, Body transiting) {
+  DailyInterpretation interp;
+  interp.top_item_count = 1;
+  interp.day_level = level;
+  interp.top_items[0].kind = ITEM_ASPECT;
+  interp.top_items[0].score = 9.5;
+  interp.top_items[0].aspect.transiting_planet = transiting;
+  interp.top_items[0].aspect.natal_planet = PLANET_MOON;
+  interp.top_items[0].aspect.type = type;
+  interp.top_items[0].aspect.orb = 0.5;
+  return interp;
+}
+
+static DailyInterpretation make_empty_interp(void) {
+  DailyInterpretation interp;
+  interp.top_item_count = 0;
+  interp.day_level = DAY_QUIET;
+  return interp;
+}
+
+static CelticCrossSpread make_spread(TarotCard attitude_card, bool attitude_reversed,
+                                      TarotCard outcome_card, bool outcome_reversed) {
+  CelticCrossSpread spread;
+  spread.positions[POSITION_ATTITUDE].card = attitude_card;
+  spread.positions[POSITION_ATTITUDE].reversed = attitude_reversed;
+  spread.positions[POSITION_OUTCOME].card = outcome_card;
+  spread.positions[POSITION_OUTCOME].reversed = outcome_reversed;
+  return spread;
+}
+
+static void test_harmonious_upright(void) {
+  DailyInterpretation interp = make_interp(DAY_MAJOR, ASPECT_TRINE, PLANET_JUPITER);
+  CelticCrossSpread spread = make_spread(CARD_SUN, false, CARD_WORLD, false);
+  FILE *f = tmpfile();
+  guidance_print(f, "", &interp, &spread);
+  const char *text = slurp(f);
+
+  assert(strstr(text, "already meeting the day in the right spirit") != NULL);
+  assert(strstr(text, "Jupiter") != NULL);
+  assert(strstr(text, "The Sun: Material happiness") != NULL);
+  assert(strstr(text, "The World: Assured success") != NULL);
+  assert(strstr(text, "(Reversed)") == NULL);
+
+  fclose(f);
+  printf("PASS test_harmonious_upright\n");
+}
+
+static void test_discordant_reversed(void) {
+  DailyInterpretation interp = make_interp(DAY_MAJOR, ASPECT_SQUARE, PLANET_SATURN);
+  CelticCrossSpread spread = make_spread(CARD_DEVIL, true, CARD_WORLD, false);
+  FILE *f = tmpfile();
+  guidance_print(f, "", &interp, &spread);
+  const char *text = slurp(f);
+
+  assert(strstr(text, "Both the day and your own footing are unsettled") != NULL);
+  assert(strstr(text, "Saturn") != NULL);
+  assert(strstr(text, "The Devil (Reversed): Evil fatality") != NULL);
+  assert(strstr(text, "The World: Assured success") != NULL);
+
+  fclose(f);
+  printf("PASS test_discordant_reversed\n");
+}
+
+static void test_neutral_conjunction_upright(void) {
+  DailyInterpretation interp = make_interp(DAY_MAJOR, ASPECT_CONJUNCTION, PLANET_PLUTO);
+  CelticCrossSpread spread = make_spread(CARD_EMPEROR, false, CARD_MOON, true);
+  FILE *f = tmpfile();
+  guidance_print(f, "", &interp, &spread);
+  const char *text = slurp(f);
+
+  assert(strstr(text, "Today concentrates whatever you already bring to it") != NULL);
+  assert(strstr(text, "Pluto") != NULL);
+  assert(strstr(text, "The Emperor: Stability, power") != NULL);
+  assert(strstr(text, "The Moon (Reversed): Instability, inconstancy") != NULL);
+
+  fclose(f);
+  printf("PASS test_neutral_conjunction_upright\n");
+}
+
+/* The stance sentence itself doesn't change with intensity - only the
+ * sentence introducing the transiting planet does (see k_intro in
+ * guidance.c). These three cover the remaining day levels below Major
+ * (which test_harmonious_upright already covers). */
+static void test_significant_day_uses_significant_intro(void) {
+  DailyInterpretation interp = make_interp(DAY_SIGNIFICANT, ASPECT_SEXTILE, PLANET_VENUS);
+  CelticCrossSpread spread = make_spread(CARD_STAR, false, CARD_SUN, false);
+  FILE *f = tmpfile();
+  guidance_print(f, "", &interp, &spread);
+  const char *text = slurp(f);
+
+  assert(strstr(text, "clearly active today") != NULL);
+  assert(strstr(text, "Venus") != NULL);
+
+  fclose(f);
+  printf("PASS test_significant_day_uses_significant_intro\n");
+}
+
+static void test_notable_day_uses_notable_intro(void) {
+  DailyInterpretation interp = make_interp(DAY_NOTABLE, ASPECT_SEXTILE, PLANET_MARS);
+  CelticCrossSpread spread = make_spread(CARD_STAR, false, CARD_SUN, false);
+  FILE *f = tmpfile();
+  guidance_print(f, "", &interp, &spread);
+  const char *text = slurp(f);
+
+  assert(strstr(text, "mild touch from Mars") != NULL);
+
+  fclose(f);
+  printf("PASS test_notable_day_uses_notable_intro\n");
+}
+
+static void test_quiet_day_with_a_faint_item_still_names_it(void) {
+  DailyInterpretation interp = make_interp(DAY_QUIET, ASPECT_SEXTILE, PLANET_MERCURY);
+  CelticCrossSpread spread = make_spread(CARD_STAR, false, CARD_SUN, false);
+  FILE *f = tmpfile();
+  guidance_print(f, "", &interp, &spread);
+  const char *text = slurp(f);
+
+  assert(strstr(text, "only faintly active today") != NULL);
+  assert(strstr(text, "Mercury") != NULL);
+
+  fclose(f);
+  printf("PASS test_quiet_day_with_a_faint_item_still_names_it\n");
+}
+
+static void test_no_aspects_at_all_falls_back_to_attitude_only(void) {
+  DailyInterpretation interp = make_empty_interp();
+  CelticCrossSpread spread = make_spread(CARD_STAR, false, CARD_SUN, false);
+  FILE *f = tmpfile();
+  guidance_print(f, "", &interp, &spread);
+  const char *text = slurp(f);
+
+  assert(strstr(text, "astrologically quiet day") != NULL);
+  assert(strstr(text, "trust your current footing") != NULL);
+  assert(strstr(text, "The Star: Loss, theft") != NULL);
+  assert(strstr(text, "The Sun: Material happiness") != NULL);
+
+  fclose(f);
+  printf("PASS test_no_aspects_at_all_falls_back_to_attitude_only\n");
+}
+
+static void test_no_aspects_at_all_respects_reversed_attitude(void) {
+  DailyInterpretation interp = make_empty_interp();
+  CelticCrossSpread spread = make_spread(CARD_STAR, true, CARD_SUN, false);
+  FILE *f = tmpfile();
+  guidance_print(f, "", &interp, &spread);
+  const char *text = slurp(f);
+
+  assert(strstr(text, "quietly re-settle your own footing") != NULL);
+
+  fclose(f);
+  printf("PASS test_no_aspects_at_all_respects_reversed_attitude\n");
+}
+
+/* Proves guidance_print() actually routes through i18n_get() rather
+ * than just printing the hardcoded fallback. Run last: i18n_load()
+ * replaces the process-global catalog for the rest of the binary's
+ * lifetime. */
+static void test_translation_catalog_overrides_fallback_text(void) {
+  char path[] = "/tmp/deck_guidance_test_XXXXXX";
+  int fd = mkstemp(path);
+  assert(fd >= 0);
+  FILE *f = fdopen(fd, "w");
+  fprintf(f, "guidance.stance.discordant.upright=UEBERSETZTE HALTUNG\n");
+  fprintf(f, "guidance.intro.major=UEBERSETZTE EINLEITUNG %%s\n");
+  fprintf(f, "guidance.planet.saturn=UEBERSETZTER SATURN\n");
+  fprintf(f, "guidance.attitude_intro=UEBERSETZTE HALTUNGSKARTE\n");
+  fclose(f);
+
+  assert(i18n_load(path));
+  unlink(path);
+
+  DailyInterpretation interp = make_interp(DAY_MAJOR, ASPECT_SQUARE, PLANET_SATURN);
+  CelticCrossSpread spread = make_spread(CARD_SUN, false, CARD_WORLD, false);
+  FILE *out = tmpfile();
+  guidance_print(out, "", &interp, &spread);
+  const char *text = slurp(out);
+
+  assert(strstr(text, "UEBERSETZTE HALTUNG") != NULL);
+  assert(strstr(text, "UEBERSETZTE EINLEITUNG UEBERSETZTER SATURN") != NULL);
+  assert(strstr(text, "UEBERSETZTE HALTUNGSKARTE") != NULL);
+  assert(strstr(text, "Your instincts are sound") == NULL); /* English fallback must not leak through */
+
+  fclose(out);
+  printf("PASS test_translation_catalog_overrides_fallback_text\n");
+}
+
+int main(void) {
+  test_harmonious_upright();
+  test_discordant_reversed();
+  test_neutral_conjunction_upright();
+  test_significant_day_uses_significant_intro();
+  test_notable_day_uses_notable_intro();
+  test_quiet_day_with_a_faint_item_still_names_it();
+  test_no_aspects_at_all_falls_back_to_attitude_only();
+  test_no_aspects_at_all_respects_reversed_attitude();
+  test_translation_catalog_overrides_fallback_text();
+  printf("All guidance tests passed.\n");
+  return 0;
+}
@@ -41,11 +41,11 @@ static void test_json_parse_rejects_malformed(void) {
 }

 /* A trimmed-but-structurally-faithful fixture matching deck-engine's real
- * --format json shape: "spread" is present with decoy content the loader
- * must skip over without understanding its schema, to prove it navigates
- * by key path rather than assuming any position. "natal"/"transits"
- * bodies are real (if partial) - reading_load_json now parses sign/house
- * from them for display, alongside the aspects used for scoring. */
+ * --format json shape. "natal"/"transits" bodies are real (if partial) -
+ * reading_load_json parses sign/house from them for display, alongside
+ * the aspects used for scoring. "spread" only fills in the Attitude and
+ * Outcome positions (the two guidance.c reads); the other eight are
+ * absent entirely, to prove partial spread data doesn't fail the load. */
 static const char *k_fixture =
  "{"
  "  \"natal\": {\"bodies\": [{\"body\": \"sun\", \"sign\": \"taurus\", \"house\": 3}], \"houses\": []},"
@@ -57,7 +57,10 @@ static const char *k_fixture =
  "      {\"transiting_planet\": \"saturn\", \"natal_planet\": \"sun\", \"type\": \"square\", \"orb\": 0.5}"
  "    ]"
  "  },"
-  "  \"spread\": {\"positions\": [{\"position\": \"present\", \"card\": \"devil\", \"reversed\": false}]}"
+  "  \"spread\": {\"positions\": ["
+  "    {\"position\": \"attitude\", \"card\": \"devil\", \"reversed\": true},"
+  "    {\"position\": \"outcome\", \"card\": \"world\", \"reversed\": false}"
+  "  ]}"
  "}";

 static void test_reading_load_json_extracts_aspects(void) {
@@ -95,6 +98,35 @@ static void test_reading_load_json_extracts_body_sign_and_house(void) {
  printf("PASS test_reading_load_json_extracts_body_sign_and_house\n");
 }

+static void test_reading_load_json_extracts_spread_positions(void) {
+  DailyReading reading;
+  bool ok = reading_load_json(k_fixture, strlen(k_fixture), &reading);
+
+  assert(ok);
+  assert(reading.spread.positions[POSITION_ATTITUDE].card == CARD_DEVIL);
+  assert(reading.spread.positions[POSITION_ATTITUDE].reversed == true);
+  assert(reading.spread.positions[POSITION_OUTCOME].card == CARD_WORLD);
+  assert(reading.spread.positions[POSITION_OUTCOME].reversed == false);
+
+  /* Positions absent from the fixture (e.g. Present) get the zeroed
+   * default (CARD_FOOL, upright) rather than garbage. */
+  assert(reading.spread.positions[POSITION_PRESENT].card == CARD_FOOL);
+  assert(reading.spread.positions[POSITION_PRESENT].reversed == false);
+
+  printf("PASS test_reading_load_json_extracts_spread_positions\n");
+}
+
+static void test_reading_load_json_missing_spread_is_not_fatal(void) {
+  const char *text = "{\"transits\": {\"aspects\": []}}";
+  DailyReading reading;
+  bool ok = reading_load_json(text, strlen(text), &reading);
+
+  assert(ok);
+  assert(reading.spread.positions[POSITION_OUTCOME].card == CARD_FOOL);
+
+  printf("PASS test_reading_load_json_missing_spread_is_not_fatal\n");
+}
+
 static void test_reading_load_json_unknown_body_slug_is_skipped_not_fatal(void) {
  const char *text =
    "{\"natal\": {\"bodies\": [{\"body\": \"xenu\", \"sign\": \"taurus\", \"house\": 3}]},"
@@ -147,6 +179,8 @@ int main(void) {
  test_json_parse_rejects_malformed();
  test_reading_load_json_extracts_aspects();
  test_reading_load_json_extracts_body_sign_and_house();
+  test_reading_load_json_extracts_spread_positions();
+  test_reading_load_json_missing_spread_is_not_fatal();
  test_reading_load_json_unknown_body_slug_is_skipped_not_fatal();
  test_reading_load_json_empty_aspects_is_valid();
  test_reading_load_json_rejects_missing_transits();
@@ -1,7 +1,12 @@
+#define _POSIX_C_SOURCE 200809L /* for mkstemp/fdopen */
+
 #include <assert.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
+#include <unistd.h>

+#include "../../engine/src/i18n.h"
 #include "../src/narrative.h"

 static const char *slurp(FILE *f) {
@@ -112,6 +117,37 @@ static void test_unknown_house_omits_area_framing(void) {
  printf("PASS test_unknown_house_omits_area_framing\n");
 }

+/* Proves narrative_print() actually routes through i18n_get() rather
+ * than just printing the hardcoded fallback - loads a translation file
+ * that overrides one planet's base text and one house's area text, and
+ * checks the override wins. Run last: i18n_load() replaces the
+ * process-global catalog for the rest of the test binary's lifetime. */
+static void test_translation_catalog_overrides_fallback_text(void) {
+  char path[] = "/tmp/deck_narrative_test_XXXXXX";
+  int fd = mkstemp(path);
+  assert(fd >= 0);
+  FILE *f = fdopen(fd, "w");
+  fprintf(f, "narrative.saturn.base=UEBERSETZTER SATURN TEXT\n");
+  fprintf(f, "narrative.house.3=UEBERSETZTES HAUS DREI\n");
+  fclose(f);
+
+  assert(i18n_load(path));
+  unlink(path);
+
+  Aspect a = { .transiting_planet = PLANET_SATURN, .natal_planet = PLANET_MOON,
+               .type = ASPECT_CONJUNCTION, .orb = 1.0 };
+  FILE *out = tmpfile();
+  narrative_print(out, "", &a, 3);
+  const char *text = slurp(out);
+
+  assert(strstr(text, "UEBERSETZTER SATURN TEXT") != NULL);
+  assert(strstr(text, "UEBERSETZTES HAUS DREI") != NULL);
+  assert(strstr(text, "depression") == NULL); /* English fallback must not leak through */
+
+  fclose(out);
+  printf("PASS test_translation_catalog_overrides_fallback_text\n");
+}
+
 int main(void) {
  test_hard_aspect_shows_base_but_not_harmonious_bonus();
  test_soft_aspect_adds_harmonious_bonus();
@@ -120,6 +156,7 @@ int main(void) {
  test_discordant_aspect_on_empty_base_planet();
  test_known_house_adds_area_framing();
  test_unknown_house_omits_area_framing();
+  test_translation_catalog_overrides_fallback_text();
  printf("All narrative tests passed.\n");
  return 0;
 }