181 lines
6.6 KiB
Markdown
181 lines
6.6 KiB
Markdown
# Skill Test Spec: /reverse-document
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## Skill Summary
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`/reverse-document` generates design or architecture documentation from existing
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source code. It reads the specified source file(s), infers design intent from
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class structure, method names, constants, and comments, and produces either a
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GDD skeleton (for gameplay systems) or an architecture overview (for technical
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systems). The output is a best-effort inference — magic numbers and undocumented
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logic may result in a PARTIAL verdict.
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The skill asks "May I write to [inferred path]?" before creating the document.
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No director gates apply. Verdicts: COMPLETE (clean inference), PARTIAL (some
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fields are ambiguous and need human review).
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---
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## Static Assertions (Structural)
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Verified automatically by `/skill-test static` — no fixture needed.
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- [ ] Has required frontmatter fields: `name`, `description`, `argument-hint`, `user-invocable`, `allowed-tools`
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- [ ] Has ≥2 phase headings
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- [ ] Contains verdict keywords: COMPLETE, PARTIAL
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- [ ] Contains "May I write" collaborative protocol language before writing the doc
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- [ ] Has a next-step handoff (e.g., `/design-review` to validate the generated doc)
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---
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## Director Gate Checks
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None. `/reverse-document` is a documentation utility. No director gates apply.
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---
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## Test Cases
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### Case 1: Well-Structured Source — Accurate design doc skeleton produced
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**Fixture:**
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- `src/gameplay/health_system.gd` exists with:
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- `@export var max_health: int = 100`
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- `func take_damage(amount: int)` with clamping logic
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- `signal health_changed(new_value: int)`
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- Docstrings on all public methods
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**Input:** `/reverse-document src/gameplay/health_system.gd`
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**Expected behavior:**
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1. Skill reads the source file and identifies the health system
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2. Skill infers design intent: max health, take_damage behavior, health signal
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3. Skill produces GDD skeleton for health system with 8 required sections:
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Overview, Player Fantasy, Detailed Rules, Formulas, Edge Cases, Dependencies,
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Tuning Knobs, Acceptance Criteria
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4. Formulas section includes the inferred clamping formula
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5. Tuning Knobs notes `max_health = 100` as a configurable value
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6. Skill asks "May I write to `design/gdd/health-system.md`?"
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7. File written; verdict is COMPLETE
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**Assertions:**
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- [ ] All 8 required GDD sections are present in the output
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- [ ] `max_health = 100` appears as a Tuning Knob
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- [ ] Clamping formula is captured in the Formulas section
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- [ ] "May I write" is asked with the inferred path
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- [ ] Verdict is COMPLETE
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---
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### Case 2: Ambiguous Source — Magic Numbers, PARTIAL Verdict
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**Fixture:**
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- `src/gameplay/enemy_ai.gd` exists with:
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- Inline magic numbers: `if distance < 150:`, `speed = 3.5`
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- No comments or docstrings
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- Complex state machine logic that is not self-explanatory
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**Input:** `/reverse-document src/gameplay/enemy_ai.gd`
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**Expected behavior:**
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1. Skill reads the file and detects magic numbers with no context
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2. Skill produces a GDD skeleton with notes: "AMBIGUOUS VALUE: 150 (unknown units —
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is this pixels, world units, or tiles?)"
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3. Skill marks the Formulas and Tuning Knobs sections as requiring human review
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4. Skill asks "May I write to `design/gdd/enemy-ai.md`?" with PARTIAL advisory
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5. File written with PARTIAL markers; verdict is PARTIAL
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**Assertions:**
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- [ ] AMBIGUOUS VALUE annotations appear for magic numbers
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- [ ] Sections needing human review are marked explicitly
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- [ ] Verdict is PARTIAL (not COMPLETE)
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- [ ] File is still written — PARTIAL is not a blocking failure
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---
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### Case 3: Multiple Interdependent Files — Cross-System Overview Produced
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**Fixture:**
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- User provides 2 source files: `combat_system.gd` and `damage_resolver.gd`
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- The files reference each other (combat calls damage_resolver)
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**Input:** `/reverse-document src/gameplay/combat_system.gd src/gameplay/damage_resolver.gd`
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**Expected behavior:**
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1. Skill reads both files and detects the dependency relationship
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2. Skill produces a cross-system architecture overview (not individual GDDs)
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3. Overview describes: Combat System → Damage Resolver interaction, shared
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interfaces, data flow between the two
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4. Skill asks "May I write to `docs/architecture/combat-damage-overview.md`?"
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5. Overview written after approval; verdict is COMPLETE (or PARTIAL if ambiguous)
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**Assertions:**
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- [ ] Both files are analyzed together (not as two separate docs)
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- [ ] Cross-system dependency is documented in the output
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- [ ] Output file is written to `docs/architecture/` (not `design/gdd/`)
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- [ ] Verdict is COMPLETE or PARTIAL
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---
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### Case 4: Source File Not Found — Error
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**Fixture:**
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- `src/gameplay/inventory_system.gd` does not exist
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**Input:** `/reverse-document src/gameplay/inventory_system.gd`
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**Expected behavior:**
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1. Skill attempts to read the specified file — not found
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2. Skill outputs: "Source file not found: src/gameplay/inventory_system.gd"
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3. Skill suggests checking the path or running `/map-systems` to identify
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the correct source file
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4. No document is created
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**Assertions:**
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- [ ] Error message names the missing file with the full path
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- [ ] Alternative suggestion (check path or `/map-systems`) is provided
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- [ ] No write tool is called
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- [ ] No verdict is issued (error state)
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---
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### Case 5: Director Gate Check — No gate; reverse-document is a utility
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**Fixture:**
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- Well-structured source file exists
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**Input:** `/reverse-document src/gameplay/health_system.gd`
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**Expected behavior:**
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1. Skill generates and writes the design doc
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2. No director agents are spawned
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3. No gate IDs appear in output
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**Assertions:**
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- [ ] No director gate is invoked
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- [ ] No gate skip messages appear
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- [ ] Verdict is COMPLETE or PARTIAL — no gate verdict involved
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---
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## Protocol Compliance
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- [ ] Reads source file(s) before generating any content
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- [ ] Produces all 8 required GDD sections when target is a gameplay system
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- [ ] Annotates ambiguous values with AMBIGUOUS VALUE markers
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- [ ] Produces cross-system overview (not individual GDDs) for multiple files
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- [ ] Asks "May I write" before creating any output file
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- [ ] Verdict is COMPLETE (clean inference) or PARTIAL (ambiguous fields)
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---
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## Coverage Notes
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- Architecture overview format (for technical/infrastructure systems) differs
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from GDD format; the inferred output type is determined by the nature of the
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source file (gameplay logic → GDD; engine/infra code → architecture doc).
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- The case where a source file is readable but contains only auto-generated
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boilerplate with no meaningful logic is not tested; skill would likely produce
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a near-empty skeleton with a PARTIAL verdict.
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- C# and Blueprint source files follow the same inference pattern as GDScript;
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language-specific differences are handled in the skill body.
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