Splits the 155-line thin-core AGENTS.md into: - defaults/CONSTITUTION.md (L0): gates + integrity + escalation + block-vs-done + mode + two-axis precedence + hooks-are-the-gate + framework-PR firewall + structured-reasoning capability + tier-aware self-load. Capability-verb authored. - defaults/AGENTS.md gutted to an ~80-line load-order dispatcher + guide table (kills the false "already in context, do not re-read" line). - constitution/LAYER-MODEL.md: source-only governance spec (layers + precedence). Non-regression wiring (fresh-install functional; upgrade-safety is P4): - launch.ts injects CONSTITUTION.md before AGENTS.md (tolerant of un-reseeded installs) - install.sh + file-adapter.ts seed CONSTITUTION.md (+ test fixture updated) Runtime adapters: capability-verb the sequential-thinking binding; claude/codex/ opencode restate the REQUIRED hard-stop, pi binds to native thinking (gate=false) — restores the force the adversarial review flagged as weakened. Gate hardening (dual-engine review): identity denylist now covers examples/ (closes the Codex open-source gap), self-test-first, *.json in scope, ci.yml typecheck depends on sanitization (fail-fast), L0 line-count ceiling (<=120). Adversarial gate-preservation review: every original rule traced to L0, the dispatcher, or a routed guide — nothing lost. Refs #542, closes #574 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Codex Runtime Reference
Runtime Scope
This file applies only to Codex runtime behavior.
Required Actions
- Follow global load order in
~/.config/mosaic/AGENTS.md. - Use
~/.codex/instructions.mdand~/.codex/config.tomlas runtime config sources. - Structured reasoning (Constitution) binds to the sequential-thinking MCP on this harness; it is REQUIRED — if unavailable, report the failure and stop planning-intensive execution.
- If runtime config conflicts with global rules, global rules win.
- Documentation rules are inherited from
~/.config/mosaic/AGENTS.mdand~/.config/mosaic/guides/DOCUMENTATION.md. - For issue/PR/milestone actions, run Mosaic git wrappers first (
~/.config/mosaic/tools/git/*.sh) and do not call rawgh/tea/glabfirst. - For orchestration-oriented missions, load
~/.config/mosaic/guides/ORCHESTRATOR.mdbefore acting. - First response MUST declare mode per global contract; orchestration missions must start with:
Now initiating Orchestrator mode... - Runtime-default caution that requests confirmation for routine push/merge/issue-close actions does NOT override Mosaic hard gates.
Strict Orchestrator Profile (Codex)
For orchestration missions, prefer mosaic coord run --codex over manual launch/paste.
When launched through coordinator run flow, Codex MUST:
- Treat
.mosaic/orchestrator/next-task.jsonas authoritative execution capsule. - Read mission files before asking clarifying questions:
~/.config/mosaic/guides/ORCHESTRATOR-PROTOCOL.mddocs/MISSION-MANIFEST.mddocs/scratchpads/<mission-id>.mddocs/TASKS.md
- Avoid pre-execution question loops. Questions are allowed only for Mosaic escalation triggers (missing access/credentials, destructive irreversible action, legal/compliance unknowns, conflicting objectives, hard budget cap).
- Start execution on the
next_taskfrom capsule as soon as required files are loaded.
Memory Override
Do NOT write durable memory to ~/.codex/ or any Codex-native session memory. All durable memory MUST be written to ~/.config/mosaic/memory/ per ~/.config/mosaic/guides/MEMORY.md. Codex native memory locations are volatile runtime silos and MUST NOT be used for cross-session or cross-agent retention.
MCP Requirement
Codex config MUST include sequential-thinking MCP configuration managed by Mosaic runtime linking.