docs: Add self-enforcement checklist to AGENTS.md

- Before task gate (git clean, skill query, GTD read)
- During task LP rules (org-only, one function per block, prose)
- After task validation (tests pass, chaos tier 1, no artifacts)
- References to authoritative skill org files

This makes the mandate enforceable, not just documentation.

.opencode/AGENTS.md

@@ -92,6 +92,43 @@ Violating these rules corrupts the skill loader and causes boot failure (as seen
 - **Testing**: Run FiveAM test suite + chaos tests before marking task complete
 - **Completion**: Update gtd.org, commit, sync with user
 
+## Self-Enforcement Checklist
+
+This agent MUST verify these conditions before, during, and after each task. Violation is a bug, not a suggestion.
+
+### Before Any Task (Gate)
+
+- [ ] **Git clean** — Working tree must be clean before modification
+- [ ] **Skill query** — Check if relevant skill exists in `/home/user/memex/projects/opencortex/skills/`
+- [ ] **Skill read** — If found, read the skill's org file before proceeding
+- [ ] **GTD read** — Check `gtd.org` for current task context
+
+### During Task (Literate Programming)
+
+- [ ] **Org-only edits** — Edit only `.org` files, never generated `.lisp` directly
+- [ ] **One function per block** — Each `#+begin_src` block contains exactly one definition
+- [ ] **Prose before code** — Every block preceded by explanatory text
+- [ ] **Prose includes**: What the function does, arguments, return value, rationale
+- [ ] **Evaluate each block** — Verify the block compiles/evaluates correctly
+- [ ] **Paren balance** — Check balanced parentheses before tangling
+
+### After Task (Validation)
+
+- [ ] **Tests pass** — Run full test suite; 100% pass required
+- [ ] **Chaos tier 1** — Deterministic regression tests pass
+- [ ] **No artifacts** — No orphaned `.bak`, `.log`, `.tmp`, or untracked test files
+- [ ] **Commit** — Stage and commit changes with descriptive message
+- [ ] **GTD update** — Update `gtd.org` with completed task state
+
+### For OpenCortex Work Specifically
+
+Reference authoritative skill files:
+- Engineering Standards: `projects/opencortex/skills/org-skill-engineering-standards.org`
+- Literate Programming: `projects/opencortex/skills/org-skill-literate-programming.org`
+- Policy: `projects/opencortex/skills/org-skill-policy.org`
+
+The summaries in this file are reminders; the skill org files are authoritative.
+
 ## References
 
 - opencortex repo: `/home/user/memex/projects/opencortex`