Initial public release

M13_UPDATE_MANIFEST.txt

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+M13 — Codex Optimization Pack
+
+Purpose:
+- Improve Codex execution quality after M12 final run readiness.
+- Add reusable skills, prompt discipline, token policy, secrets policy, parallel agent strategy and pass completion prompts.
+
+Added:
+- docs/30-codex-optimization/CODEX_OPTIMIZATION_OVERVIEW.md
+- docs/30-codex-optimization/CODEX_RUN_CHECKLIST.md
+- docs/30-codex-optimization/PROMPT_DISCIPLINE.md
+- docs/30-codex-optimization/TOKEN_BUDGET_POLICY.md
+- docs/30-codex-optimization/SECRETS_AND_ENV_POLICY.md
+- docs/30-codex-optimization/PARALLEL_AGENT_STRATEGY.md
+- docs/30-codex-optimization/CODEX_SKILLS_INDEX.md
+- docs/30-codex-optimization/M13_HANDOFF_SUMMARY.md
+- skills/*/SKILL.md
+- prompts/codex/m13/*.md
+- scripts/validate_m13_codex_assets.py
+
+Updated:
+- README.md
+- CODEX_START.md
+- Makefile
+- scripts/run_readiness_check.sh
+- CHANGELOG.md