Files
everything-claude-code/.codex/AGENTS.md
Affaan Mustafa d70bab85e3 feat: add Cursor, Codex, and OpenCode harnesses — maximize every AI coding tool
- AGENTS.md: universal cross-tool file read by Claude Code, Cursor, Codex, and OpenCode
- .cursor/: 15 hook events via hooks.json, 16 hook scripts with DRY adapter pattern,
  29 rules (9 common + 20 language-specific) with Cursor YAML frontmatter
- .codex/: reference config.toml, Codex-specific AGENTS.md supplement,
  10 skills ported to .agents/skills/ with openai.yaml metadata
- .opencode/: 3 new tools (format-code, lint-check, git-summary), 3 new hooks
  (shell.env, experimental.session.compacting, permission.ask), expanded instructions,
  version bumped to 1.6.0
- README: fixed Cursor section, added Codex section, added cross-tool parity table
- install.sh: now copies hooks.json + hooks/ for --target cursor
2026-02-25 10:45:29 -08:00

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2.0 KiB
Markdown

# ECC for Codex CLI
This supplements the root `AGENTS.md` with Codex-specific guidance.
## Model Recommendations
| Task Type | Recommended Model |
|-----------|------------------|
| Routine coding, tests, formatting | o4-mini |
| Complex features, architecture | o3 |
| Debugging, refactoring | o4-mini |
| Security review | o3 |
## Skills Discovery
Skills are auto-loaded from `.agents/skills/`. Each skill contains:
- `SKILL.md` — Detailed instructions and workflow
- `agents/openai.yaml` — Codex interface metadata
Available skills:
- tdd-workflow — Test-driven development with 80%+ coverage
- security-review — Comprehensive security checklist
- coding-standards — Universal coding standards
- frontend-patterns — React/Next.js patterns
- backend-patterns — API design, database, caching
- e2e-testing — Playwright E2E tests
- eval-harness — Eval-driven development
- strategic-compact — Context management
- api-design — REST API design patterns
- verification-loop — Build, test, lint, typecheck, security
## MCP Servers
Configure in `~/.codex/config.toml` under `[mcp_servers]`. See `.codex/config.toml` for reference configuration with GitHub, Context7, Memory, and Sequential Thinking servers.
## Key Differences from Claude Code
| Feature | Claude Code | Codex CLI |
|---------|------------|-----------|
| Hooks | 8+ event types | Not yet supported |
| Context file | CLAUDE.md + AGENTS.md | AGENTS.md only |
| Skills | Skills loaded via plugin | `.agents/skills/` directory |
| Commands | `/slash` commands | Instruction-based |
| Agents | Subagent Task tool | Single agent model |
| Security | Hook-based enforcement | Instruction + sandbox |
| MCP | Full support | Command-based only |
## Security Without Hooks
Since Codex lacks hooks, security enforcement is instruction-based:
1. Always validate inputs at system boundaries
2. Never hardcode secrets — use environment variables
3. Run `npm audit` / `pip audit` before committing
4. Review `git diff` before every push
5. Use `sandbox_mode = "workspace-write"` in config