409-sf-audit-a11y - SKILL.md Agent Skill

name: 409-sf-audit-a11y description: "Accessibility audit." argument-hint: '[file-path | "global"] (omit for full project)'

Canonical Paths

Before resolving any ShipFlow-owned file, load $SHIPFLOW_ROOT/skills/references/canonical-paths.md ($SHIPFLOW_ROOT defaults to $HOME/shipflow). ShipFlow tools, shared references, skill-local references/*, templates, workflow docs, and internal scripts must resolve from $SHIPFLOW_ROOT, not from the project repo where the skill is running. Project artifacts and source files still resolve from the current project root unless explicitly stated otherwise.

Instruction Layering

This SKILL.md is the activation contract. Before editing or expanding this skill, load $SHIPFLOW_ROOT/skills/references/skill-instruction-layering.md and keep bulky workflow detail in skill-local references.

Chantier Tracking

Trace category: conditionnel. Process role: source-de-chantier.

Before producing the final report, load $SHIPFLOW_ROOT/skills/references/chantier-tracking.md. If attached to one unique chantier spec, write the run trace there. If no unique chantier exists, do not write to a spec.

Chantier Potential Intake

Because this skill has process role source-de-chantier, evaluate the standard threshold from $SHIPFLOW_ROOT/skills/references/chantier-tracking.md before the final report. Add a Chantier potentiel block when findings reveal non-trivial future work and no unique chantier owns it.

Report Modes

Before producing the final report, load $SHIPFLOW_ROOT/skills/references/reporting-contract.md.

Default to report=user: concise, findings-first for audits and failures, outcome-first for successful support runs, and in the user's active language. Use report=agent, handoff, verbose, or full-report only when detailed evidence is needed.

Required References

Always load shared references only when their gate applies. Load skill-local references precisely by mode:

references/accessibility-audit-workflow.md: Accessibility audit workflow, WCAG/APG checks, keyboard/focus/ARIA phases, severity rules, and report details.

Mode Detection

Parse $ARGUMENTS and choose the smallest safe mode under $SHIPFLOW_ROOT/skills/references/decision-quality-contract.md: bounded professional scope, never shortcut quality.

PROJECT MODE: load references/accessibility-audit-workflow.md for full WCAG/APG accessibility audits.
FILE MODE: load the workflow reference and audit the named component, route, or file.
GLOBAL MODE: load the workflow reference and summarize systemic accessibility posture across the workspace.

Core Execution Rules

Preserve WCAG 2.2, keyboard, focus, ARIA, screen-reader, target-size, and Flutter accessibility checks.
When proposing visual accessibility fixes, load $SHIPFLOW_ROOT/skills/references/design-system-token-contract.md and route color, spacing, focus, typography, target-size, and motion changes through the project design-system authority. Accessibility remains non-negotiable; if existing tokens cannot meet WCAG, report a token-system defect instead of adding local visual bypasses.
Evaluate Chantier potentiel for systemic accessibility findings, multi-surface remediation, or validation that exceeds a direct fix.
Do not treat visual appearance alone as accessibility proof.

Stop Conditions

Stop and report blocked when:

A required reference is missing or contradicts this activation contract.
The requested work would change behavior outside this skill's scope.
A safety, security, documentation, source, claim, auth, production, redaction, or chantier guardrail would need to be weakened.
The action would edit unrelated dirty files or mutate durable state without an owner-skill contract.

Validation

Validate this skill after edits with:

rg -n "Trace category|Process role|Chantier Potential|Report Modes|WCAG|keyboard|focus|ARIA|references/" skills/409-sf-audit-a11y/SKILL.md
python3 tools/skill_budget_audit.py --skills-root skills --format markdown
tools/shipflow_sync_skills.sh --check --all