Security Boundaries
Four separate decisions
Section titled “Four separate decisions”- Install: place a Plugin or SKILL where Codex can discover it.
- Activate instructions: consent to read/use a SKILL for a declared scope.
- Authorize runtime: allow tools, files, network, subprocesses, or secrets through the Host.
- Authorize side effects: approve deployment, messages, production changes, publication, or other consequential actions.
One decision never implies the next.
Fail-closed rules
Section titled “Fail-closed rules”- Agent observations cannot mint Host authority.
- Runtime cache cannot promote an unavailable capability.
- Protected route activation requires a current snapshot, policy, consent, lease, and bound-content receipt.
- Leases are purpose/scope-bound, single-use, and freshness-limited.
- Unknown side effects block verification.
- Native Goal mutation remains Host-owned.
- Evaluation executable configuration is server-owned; model input cannot choose it.
- Raw model traces and local paths stay out of public artifacts.
R0 local planning may run in the bundled control plane. R1 requires stronger runtime validation; R2/R3 remain subject to Codex sandbox, approval, and permission boundaries. A lower-risk routing label never downgrades the Host’s own risk decision.
Dependency decisions
Section titled “Dependency decisions”The Plugin lockfile excludes known High and Critical dependency findings before a release candidate is accepted. The development lockfile resolved the previous Moderate exception and reported zero production audit findings on 2026-10-19. The dated result and regression gate are recorded in the Plugin dependency security decision. The Plugin itself starts an MCP stdio transport, not an HTTP listener.
Report a vulnerability
Section titled “Report a vulnerability”Follow SECURITY.md. Do not include secrets, private repository data, or exploit details in a public issue.
Adaptive Workflow Memory public contract
Section titled “Adaptive Workflow Memory public contract”The public surface contains 20 MCP tools. Memory uses a separate Operational DB and Optional Memory DB. Managed writes are limited to managed-personal and managed-workspace-local; User-owned Profile writes still require their original authority.
The four decisions remain separate: policy autonomy, trusted Workspace binding, Profile ownership/target authority, and Runtime/Side-effect execution authority. A trusted root is not a Host write grant.
Skill consistency is unavailable without receipt evidence. A planned route may be intended-unverified; it is not activation proof. The Memory Flight Recorder uses fixture-trace or sanitized runtime records. Its deterministic-local-pilot is not Model Evidence and never contains actual Personal Memory.
Authority decisions
Section titled “Authority decisions”- Personal Policy establishes the autonomy ceiling.
- Workspace Policy may reduce but cannot elevate it.
- Automatic materialization is managed-only and conflict-suppressed.
- Host Runtime, Skill activation, Side-effect and User-owned Workspace-file authority are never inferred from Memory.