Codex compatibility note:
- Invoke repository skills with
$skill-namein Codex; this mirrored copy rewrites legacy Claude/skill-namereferences.- Task tracker mandate: BEFORE executing any workflow or skill step, create/update task tracking for all steps and keep it synchronized as progress changes.
- User-question prompts mean to ask the user directly in Codex.
- Ignore Claude-specific mode-switch instructions when they appear.
- Strict execution contract: when a user explicitly invokes a skill, execute that skill protocol as written.
- Subagent authorization: when a skill is user-invoked or AI-detected and its protocol requires subagents, that skill activation authorizes use of the required
spawn_agentsubagent(s) for that task.- Do not skip, reorder, or merge protocol steps unless the user explicitly approves the deviation first.
- For workflow skills, execute each listed child-skill step explicitly and report step-by-step evidence.
- If a required step/tool cannot run in this environment, stop and ask the user before adapting.
Codex Project-Reference Loading (No Hooks)
Codex does not receive Claude hook-based doc injection. When coding, planning, debugging, testing, or reviewing, open project docs explicitly using this routing.
Always read:
docs/project-config.json(project-specific paths, commands, modules, and workflow/test settings)docs/project-reference/docs-index-reference.md(routes to the fulldocs/project-reference/*catalog)docs/project-reference/lessons.md(always-on guardrails and anti-patterns)
Situation-based docs:
- Backend/CQRS/API/domain/entity changes:
backend-patterns-reference.md,domain-entities-reference.md,project-structure-reference.md - Frontend/UI/styling/design-system:
frontend-patterns-reference.md,scss-styling-guide.md,design-system/README.md - Spec/test-case planning or TC mapping:
feature-docs-reference.md - Integration test implementation/review:
integration-test-reference.md - E2E test implementation/review:
e2e-test-reference.md - Code review/audit work:
code-review-rules.mdplus domain docs above based on changed files
Do not read all docs blindly. Start from docs-index-reference.md, then open only relevant files for the task.
Quick Summary
Goal: Run all 3 UI scan skills in parallel → produce a consolidated summary of what was found and what's still missing. Single command for full UI system documentation refresh.
Workflow:
- Pre-Flight — Verify frontend code exists; assess which docs need refresh
- Launch — 3 sub-skills run simultaneously
- Verify — Confirm each output doc has real content (not placeholder)
- Summarize — Report findings and remaining gaps
Key Rules:
- Skip entirely if project has no frontend code
- All 3 scans run in PARALLEL for speed
- Does NOT modify application code — only populates
docs/project-reference/MUST ATTENTION verify each sub-skill output doc after completion — never trust "it ran" without checking
Scan UI System
Phase 0: Pre-Flight Check
[BLOCKING] Before launching sub-skills, determine:
- Detect frontend code presence:
| Signal | Action |
|---|---|
angular.json, package.json with frontend framework, src/Web* directories |
Proceed with all 3 scans |
| No frontend code detected | STOP — report "Backend-only project; scan-ui-system skipped" |
- Assess each reference doc freshness:
| Reference Doc | Glob to Check | Stale If |
|---|---|---|
docs/project-reference/design-system/README.md |
Check last-scanned date in file | >30 days old OR is placeholder |
docs/project-reference/scss-styling-guide.md |
Check last-scanned date in file | >30 days old OR is placeholder |
docs/project-reference/frontend-patterns-reference.md |
Check last-scanned date in file | >30 days old OR is placeholder |
- Determine which scans to run:
| Condition | Decision |
|---|---|
| All 3 docs fresh (≤30 days, has real content) | Ask user: "All UI docs are recent. Force refresh?" |
| 1-2 docs stale/missing | Run only the stale/missing scans |
| All 3 stale/missing | Run all 3 in parallel |
User explicitly ran $scan-ui-system |
Run all 3 regardless of freshness |
- Read
docs/project-config.jsonfordesignSystemsection if available — pass config-driven paths to sub-skills.
Evidence gate: Confidence <60% on frontend code existence → ask user before proceeding.
Phase 1: Plan
Create task tracking entries for each sub-skill that will run + one verification task per sub-skill + one summary task. Do not start Phase 2 without tasks created.
Phase 2: Launch Parallel Scans
Run the applicable sub-skills simultaneously. Each sub-skill is FULLY self-contained — do NOT pass context between them.
Scan 1: Design System
Activate $scan-design-system → populates docs/project-reference/design-system/README.md
Passes: detected project-config.json designSystem config to sub-skill if available.
Scan 2: SCSS/Styling
Activate $scan-scss-styling → populates docs/project-reference/scss-styling-guide.md
Scan 3: Frontend Patterns
Activate $scan-frontend-patterns → populates docs/project-reference/frontend-patterns-reference.md
Phase 3: Verify Sub-Skill Outputs
Proceed to Phase 4 only after all 3 outputs are verified — do NOT advance while any remain unverified.
For each output doc:
- Check file exists and has content beyond placeholder headings (Glob + Read first 20 lines)
- Verify
<!-- Last scanned: -->header was updated to today's date - If a sub-skill output is placeholder-only or missing: flag it as FAILED and re-run that sub-skill once
If re-run also produces placeholder: escalate to user — "scan-{name} produced no output. Please run it manually and check for errors."
Phase 4: Summarize
After all 3 verified, produce a concise summary:
UI System Scan Complete ({date}):
Design System → docs/project-reference/design-system/README.md
Tokens: {approach: token-first | figma-driven | ad-hoc}
Components: {library | none detected}
Gaps: {list or "none identified"}
SCSS Styling → docs/project-reference/scss-styling-guide.md
Approach: {SCSS | Tailwind | CSS-in-JS | CSS Modules | hybrid}
BEM: {active | partial | none}
Gaps: {list or "none identified"}
Frontend Patterns → docs/project-reference/frontend-patterns-reference.md
Framework: {Angular | React | Vue | Svelte | multi-framework}
State: {store type detected}
Gaps: {list or "none identified"}
Replace {placeholders} with actual findings from verified output docs — NEVER fabricate.
When to Use
- After
$scaffoldin greenfield-init workflow (design system just created) - First time using Claude Code on an existing project (onboarding)
- Periodic refresh when UI system has changed significantly
- Manual: user runs
$scan-ui-system - Auto-triggered by
project-configskill Phase 5 scan task creation
When to Skip
- Backend-only project (no frontend code directories)
- All 3 reference docs are current and recent (≤30 days) — ask user to confirm
Auto-Trigger Integration
This skill replaces 3 separate scan entries in the project-config scan table:
| Reference Docs | Scan Skill |
|---|---|
design-system/README.md + scss-styling-guide.md + frontend-patterns-reference.md |
$scan-ui-system |
[IMPORTANT] Use task tracking to break ALL work into small tasks BEFORE starting.
AI Mistake Prevention — Failure modes to avoid:
Verify sub-skill results after completion. Sub-skills may complete with partial output. Grep-verify each output doc has real content before declaring success. Do NOT skip a sub-skill because the others found nothing. Each scan is independent — one empty result does not imply others will be empty. Surface ambiguity before coding. NEVER pick silently. Check downstream references before deleting. Map referencing files before removal.
Critical Thinking Mindset — Every claim needs traced proof, confidence >80% to act. Anti-hallucination: Never present guess as fact — cite sources, admit uncertainty, self-check output, cross-reference independently. Certainty without evidence = root of all hallucination.
Output Quality — Token efficiency without sacrificing quality.
- No inventories/counts — stale instantly
- No directory trees — use 1-line path conventions
- No TOCs — AI reads linearly
- One example per pattern — only if non-obvious
- Lead with answer, not reasoning
- Sacrifice grammar for concision in reports
- Unresolved questions at end
MUST ATTENTION apply critical thinking — every claim needs traced proof, confidence >80% to act. Anti-hallucination: never present guess as fact.
MUST ATTENTION apply AI mistake prevention — holistic-first debugging, fix at responsible layer, surface ambiguity before coding, re-read files after compaction.
Closing Reminders
IMPORTANT MUST ATTENTION break work into small task tracking tasks BEFORE starting — one per sub-skill, one per verification, one for summary IMPORTANT MUST ATTENTION run pre-flight check in Phase 0 — never launch scans on backend-only projects IMPORTANT MUST ATTENTION verify each sub-skill output doc has real content — "it ran" ≠ "it produced output" IMPORTANT MUST ATTENTION summary must come from actual verified doc content — NEVER fabricate token counts or component names
Anti-Rationalization:
| Evasion | Rebuttal |
|---|---|
| "Frontend code obvious, skip pre-flight check" | Phase 0 is BLOCKING — backend-only project wastes 3 sub-skill invocations |
| "All docs are probably still fresh" | Check last-scanned date with actual file read — never assume freshness |
| "Sub-skills ran, so output must be there" | Verify output doc content after each sub-skill — placeholder ≠ populated |
| "Summary from memory is fine" | Summary must come from verified output docs — never fabricate findings |
| "Only re-run needed sub-skills" | If user ran $scan-ui-system explicitly, run all 3 — override freshness check |
[TASK-PLANNING] Before acting, analyze task scope and break into small todo tasks and sub-tasks using task tracking.
Hookless Prompt Protocol Mirror (Auto-Synced)
Source: .claude/hooks/lib/prompt-injections.cjs + .claude/.ck.json
[WORKFLOW-EXECUTION-PROTOCOL] [BLOCKING] Workflow Execution Protocol — MANDATORY IMPORTANT MUST CRITICAL. Do not skip for any reason.
Generic portability boundary: Reusable skills and protocol text stay project-neutral; project-specific conventions are discovered from docs/project-config.json and docs/project-reference/. Apply shared AI-SDD from shared/sdd-artifact-contract.md. Read docs/project-config.json and docs/project-reference/docs-index-reference.md, then open the project reference docs named there. Any supported AI tool may execute when this shared context and local docs are available.
- DETECT: Match prompt against workflow catalog
- ANALYZE: Find best-match workflow AND evaluate if a custom step combination would fit better
- ASK (REQUIRED FORMAT): Use a direct user question with this structure unless the user explicitly invoked a workflow/skill and the local protocol treats explicit invocation as confirmation:
- Question: "Which workflow do you want to activate?"
- Option 1: "Activate [BestMatch Workflow] (Recommended)"
- Option 2: "Activate custom workflow: [step1 → step2 → ...]" (include one-line rationale)
- ACTIVATE (if confirmed): Call
$workflow-start <workflowId>for standard; sequence custom steps manually - CREATE TASKS: task tracking for ALL workflow steps
- EXECUTE: Follow each step in sequence [CRITICAL-THINKING-MINDSET] Apply critical thinking, sequential thinking. Every claim needs traced proof, confidence >80% to act. Anti-hallucination principle: Never present guess as fact — cite sources for every claim, admit uncertainty freely, self-check output for errors, cross-reference independently, stay skeptical of own confidence — certainty without evidence root of all hallucination. AI Attention principle (Primacy-Recency): Put the 3 most critical rules at both top and bottom of long prompts/protocols so instruction adherence survives long context windows. Goal-driven execution: Define success criteria first, loop until verified, and stop only when observable checks pass. Tests verify intent: Tests must protect business rules/invariants and fail when the protected intent breaks, not only mirror current behavior.
[LESSON-LEARNED-REMINDER] [BLOCKING] Task Planning & Continuous Improvement — MANDATORY. Do not skip.
Break work into small tasks (task tracking) before starting. Add final task: "Analyze AI mistakes & lessons learned".
Extract lessons — ROOT CAUSE ONLY, not symptom fixes:
- Name the FAILURE MODE (reasoning/assumption failure), not symptom — "assumed API existed without reading source" not "used wrong enum value".
- Generality test: does this failure mode apply to ≥3 contexts/codebases? If not, abstract one level up.
- Write as a universal rule — strip project-specific names/paths/classes. Useful on any codebase.
- Consolidate: multiple mistakes sharing one failure mode → ONE lesson.
- Recurrence gate: "Would this recur in future session WITHOUT this reminder?" — No → skip
$learn. - Auto-fix gate: "Could
$code-review/$code-simplifier/$security/$lintcatch this?" — Yes → improve review skill instead. - BOTH gates pass → ask user to run
$learn. [TASK-PLANNING] [MANDATORY] BEFORE executing any workflow or skill step, create/update task tracking for all planned steps, then keep it synchronized as each step starts/completes.