legacy-to-symfony-migrationlisted

# Legacy to Symfony/CQRS Migration Skill Read `@.ai/Component/Migration/CONTEXT.md` for conventions, reference pages, dependency graph, and conditional activation matrix. This skill is an **orchestrator**: each step file explains *why* the step exists, *when* to enter it, *what gates it*, and *which standalone skills to invoke*. The procedural detail lives in the standalone skills themselves and in the relevant Component CONTEXT.md. ## When to use this skill Trigger when asked to: - "Migrate the Xxx admin page to Symfony" - "Create CQRS for the Xxx domain" - "Add a Symfony form for Xxx" - "Migrate AdminXxxController" ## Sub-agent delegation (Claude Code) When the parent agent supports sub-agents (Claude Code does; other tools currently do not), step-00 audits are particularly suited to delegation: each audit reads a large legacy file and emits a structured artifact, so the parent can offload the read cost without losing context. The migration manifest synthesises both audits and acts as the shared context surface for every later step. Skills tagged `subagent: recommended` or `subagent: optional` in their frontmatter are candidates; tools without a sub-agent primitive simply run them in-line — behaviour is identical from the user's standpoint. ## Phase index | # | File | Title | Deliverable | |---|------|-------|-------------| | 0 | [step-00-audit.md](step-00-audit.md) | Audit | Field map, action list, milestone decision | | 1 | [step-01-feature-flag.md](step-01-featur