!bash "${CLAUDE_SKILL_DIR}/../../hooks/yaml-helper.sh" resolve_config --keys review_mode,workflow,qa.level,testing.strict,performance.enforce,team.size,project.stage,system_overrides

Resolved above, use as-is; --review overrides review_mode. No block → defaults in .claude/docs/config-resolution.md.

Phase Gate Validation

This skill validates whether the project is ready to advance to the next development phase. It checks for required artifacts, quality standards, and blockers.

Distinct from /project-stage-detect: That skill is diagnostic ("where are we?"). This skill is prescriptive ("are we ready to advance?" with a formal verdict).

Production Stages (7)

The project progresses through these stages:

1. Concept, Brainstorming, game concept document
2. Systems Design, Mapping systems, writing GDDs
3. Technical Setup, Engine config, architecture decisions
4. Pre-Production, Prototyping, vertical slice validation
5. Production, Feature development (Epic/Feature/Task tracking active)
6. Polish, Performance, playtesting, bug fixing
7. Release, Launch prep, certification

When a gate passes (or the user explicitly accepts a CONCERNS verdict's risks, Section 6), update the stage in both project.yaml (set project.stage: <new-stage>) AND write the new stage name to production/stage.txt (single line, e.g. Production). Dual-write keeps backward compatibility with hooks that haven't migrated yet. This updates the status line immediately.

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1. Parse Arguments

Target phase: $ARGUMENTS with any --review <mode> pair removed (blank = auto-detect current stage, then validate next transition). /gate-check --review full names no phase.