codex-sdlc

Use this skill for ADRs, architecture choices, technology selection, boundaries, and updates to `docs/ARCHITECTURE.md`. It keeps research ahead of prose and requires explicit approval before a decision is treated as merged.

Use this skill to discover workflows, map events, commands, read models, automations, and Given/When/Then scenarios before implementation. It keeps discovery separate from architecture and implementation decisions.

Review local changes before a trunk commit or push. Use when the user asks for review, a final preflight pass, or a regression check focused on correctness, risks, and missing tests.

Use this skill whenever the user wants test-first implementation. It runs a Codex-native RED -> DOMAIN -> GREEN -> DOMAIN -> COMMIT loop, with optional subagent delegation when explicitly useful.

Bootstrap a repository for Codex-first, trunk-based development. Use when the user asks to set up AGENTS.md, Codex workflow guidance, or repo-local SDLC defaults without centering Claude-specific conventions.

Keep Codex delegation explicit, sparse, and well-scoped. Use when the user asks for subagents, parallel work, or a multi-agent approach, or when a sidecar task is clearly parallelizable without changing the main workflow default.

Use this skill for semantic types, primitive obsession, parse-don't-validate, invalid-state prevention, and domain-focused review. It is also the domain review lens for the TDD cycle.

Set up repository policy and local Codex configuration for trunk-based development. Use when the user wants GitHub branch-protection guidance, `.codex/config.toml` direction, or a repo-local operating model aligned with direct trunk commits.

Capture repeated mistakes and workflow friction after meaningful work. Use when a task exposed recurring failures, confusing prompts, missing guardrails, or instructions that should be tightened for future Codex sessions.

Ship changes directly through trunk-based development. Use when the user wants to review scope, commit intentionally, rebase or fast-forward if needed, and push without opening a pull request.