!bash "${CLAUDE_SKILL_DIR}/../../hooks/yaml-helper.sh" resolve_config --keys automation,workflow,story_granularity,qa.level,testing.strict,system_overrides

Resolved above — use as-is. No block → defaults in .claude/docs/config-resolution.md.

Dev Story

This skill bridges planning and code. It reads a story file in full, assembles all the context a programmer needs, routes to the correct specialist agent, and drives implementation to completion — including writing the test.

The loop for every story:

/qa-plan sprint           ← define test requirements before sprint begins
/story-readiness [path]   ← validate before starting
/dev-story [path]         ← implement it  (this skill)
/code-review [files]      ← review it
/story-done [path]        ← verify and close it

At workflow: minimal the loop is /dev-story [path] → /story-done [path]: no QA plan, readiness check or sprint. /story-done names the next story.

With a sprint plan, after all sprint stories are done: run /team-qa sprint to execute the full QA cycle and get a sign-off verdict before advancing the project stage.

Output: Source code under the project's code root + test file under the engine's test root (tests/ Godot, Assets/Tests/ Unity, Source/<Module>/Private/Tests/ Unreal — .claude/docs/directory-structure.md). Resolve the code root from engine.name (src/ Godot, Assets/ Unity, Source/<Module>/ Unreal) per .claude/docs/code-root-resolution.md.

Every AskUserQuestion call follows .claude/docs/automation-modes.md (collaborative asks always · guided major-only · autonomous logs and proceeds; automation_always_ask categories always prompt).

Workflow tier: resolved per the story's system (per .claude/docs/workflow-modes.md) — the GDD filename stem of the story's GDD: path (design/gdd/<stem>.md → <stem>), with the [system] segment of its TR-[system]-NNN ID accepted only as a fallback alias: use the system_overrides row for that system if the block lists one, else the project value. Resolve it at the start of Phase 2 (the story header is read there) and apply it to the prerequisite gate.

story_granularity — it sets the expected implementation cycle: multi-day at coarse (the default, via rigor: minimal; give the programmer subagent longer working context), 1–2 days at balanced (rigor: standard), hours at fine (tighter context). It does not change the prerequisite gate.

qa.level: controls whether the programmer brief carries a test requirement. At minimal, omit the "Test requirement" line (Phase 4 item 7) — tests are not required; at standard, include the per-type test requirement; at full, also pass a coverage target. Distinct from workflow: minimal. When tests are not required (minimal), the Phase 5 testing.strict gate is a no-op.

Phase 1: Find the Story

If a path is provided: read that file directly.

If no argument: check production/session-state/active.md for the active story. If found, confirm: "Continuing work on [story title] — is that correct?" If not found, ask: "Which story are we implementing?" Glob production/epics/*/.md and list stories with Status: Ready.

Phase 2: Load Full Context

Read references/2-load-context.md now and follow it — this phase's steps are in that file, not here. Read it again if the conversation was compacted or resumed during this phase.

Phase 3: Route to the Right Programmer

Read references/3-route.md now and follow it — this phase's steps are in that file, not here. Read it again if the conversation was compacted or resumed during this phase.

Phase 4: Implement

Read references/4-implement.md now and follow it — this phase's steps are in that file, not here. Read it again if the conversation was compacted or resumed during this phase.

Phase 5: Test Evidence Requirements

Read references/5-test-evidence.md now and follow it — this phase's steps are in that file, not here. Read it again if the conversation was compacted or resumed during this phase.

Phase 6: Collect and Summarise

Read references/6-collect.md now and follow it — this phase's steps are in that file, not here. Read it again if the conversation was compacted or resumed during this phase.

Phase 7: Update Session State

Read references/7-session-state.md now and follow it — this phase's steps are in that file, not here. Read it again if the conversation was compacted or resumed during this phase.

Error Recovery Protocol

First, verify the artifact. If the return contract named a path, check the path exists before treating the phase as done — a named artifact that is not on disk is a failed phase, however fluent the response reads. An agent can burn a full phase and return a plausible preamble having written nothing, which is neither BLOCKED nor an error nor "cannot complete", so the trigger below never fires. Resume it naming the unmet contract; the context is usually still there.

If any spawned agent returns BLOCKED, errors, or cannot complete: surface it immediately, don't proceed past a dependency it blocks, and always produce a partial report. Full procedure: .claude/docs/error-recovery-protocol.md.

Common blockers:

• Input file missing (story not found, GDD absent) → redirect to the skill that creates it
• A referenced ADR's status is Proposed → do not implement; accept it with /architecture-decision accept ADR-NNNN once decided (a story that references no ADR is not blocked on this — see Phase 2)
• Scope too large → split into two stories via /create-stories
• Conflicting instructions between ADR and story → surface the conflict, do not guess
• Manifest version mismatch → show diff to user, ask whether to proceed with old rules or update story first

Collaborative Protocol

Applies in collaborative mode (the default). For guided and autonomous modes, see .claude/docs/automation-modes.md — the rules below describe what collaborative mode requires, not universal behavior.

• File writes are delegated — all source code, test files, and evidence docs are written by sub-agents spawned via Agent. Each sub-agent enforces the "May I write to [path]?" protocol individually. This orchestrator writes only the following, each after an ask that names it:
• the story's Status: / Last Updated: and its production/sprint-status.yaml entry — the one "May I mark this story In Progress?" ask (Phase 2)
• the story's ADR Version, ADR Decision Summary and ## Implementation Notes (ADR mismatch option [A]), and its Manifest Version: / Manifest-Note: (manifest option [A] or [B]) — each option names that edit, so choosing it is the ask
• a dependency story's Status: Complete (dependency option [C], then "May I update [dependency path] Status to Complete?")
• a Config/Data story's data file ("May I write to [path]?")
• on Unity, Assets/Scripts/ScreenshotOnArg.cs, written verbatim from .claude/docs/run-and-observe.md ("May I write Assets/Scripts/ScreenshotOnArg.cs?", Phase 6)

The session-state checkpoint in production/session-state/active.md is the one write made without an ask.

• Load before implementing — do not start coding until all context is loaded

(story, TR-ID, ADR, manifest, engine prefs). Incomplete context produces code that drifts from design.

• The ADR is the law — implementation must follow the ADR's Implementation

Guidelines. If the guidelines conflict with what seems "better," flag it in the summary rather than silently deviating.

• Stay in scope — the Out of Scope section is a contract. If implementing

the story requires touching an out-of-scope file, stop and surface it: "Implementing [criterion] requires modifying [file], which is out of scope. Shall I proceed or create a separate story?"

• Test is not optional for Logic/Integration (at qa.level: standard/full) —

do not mark implementation complete without the test file existing. At qa.level: minimal tests are not required and this does not apply.

• Visual/Feel and UI looks are observed, not deferred — the Phase 6 run

retains the screenshot (each screen touched for UI; Visual/Feel also needs a lead sign-off before /story-done), and qa.level never waives either. Only the feel half of a Visual/Feel criterion — timing, weight, responsiveness — is marked DEFERRED, for /team-qa

• Ask before large structural decisions — if the story requires an

architectural pattern not covered by the ADR, surface it before implementing: "The ADR doesn't specify how to handle [case]. My plan is [X]. Proceed?"

Recommended Next Steps

• At standard/full, run /code-review [file1] [file2] to review the implementation before closing the story (not part of the minimal loop)
• Run /story-done [story-path] to verify acceptance criteria and mark the story complete
• With a sprint plan, after all sprint stories are done: run /team-qa sprint for the full QA cycle before advancing the project stage. At minimal, /story-done names the next story instead