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[BUG] Codex agent conversion silently drops model and model_reasoning_effort, which Codex honors #3126
Description
Activity
Decision: approve
Area: project
Scope: Preserve the officially documented model and model_reasoning_effort fields when rendering an agent for Codex, using their native placement in the generated agent TOML. Make unsupported metadata loss explicit without introducing a new APM namespaced metadata system.
Done when: Both fields survive actual generated Codex agent output when supplied; absent fields remain absent; unsupported dropped fields receive an accurate diagnostic; regression coverage verifies the native output and preserves existing behavior for other targets. Related authoring guidance states the supported fields and limitations.
Out of scope: Cross-provider model-name translation, arbitrary frontmatter passthrough, new codex: namespace semantics, the broader #2108 translation program, other reporter-listed native fields without separate verification and scope, changes to execution consent, or implementation of a model runtime in APM.
Review contact: Daniel Meppiel (@danielmeppiel)The official Codex subagent documentation documents both fields in custom agent TOML files. Preserving those native settings follows the same bounded compatibility principle as #3067 and #3087; it does not reopen a universal translation framework. The pre-analysis confirmed the source-level loss and native contract, not a fresh Codex runtime reproduction.
Recorded by Copilot on behalf of Daniel Meppiel (@danielmeppiel) after his explicit "ok to all yes" confirmation of the four priority batches on 2026-10-02. This records the human-approved scope, not an autonomous recommendation. It does not assign implementation, promise a release, approve a merge, or replace required review.
Decision: approve
Area: project
Scope: Preserve the officially documented model and model_reasoning_effort fields when rendering an agent for Codex, using their native placement in the generated agent TOML. Make unsupported metadata loss explicit without introducing a new APM namespaced metadata system.
Done when: Both fields survive actual generated Codex agent output when supplied; absent fields remain absent; unsupported dropped fields receive an accurate diagnostic; regression coverage verifies the native output and preserves existing behavior for other targets. Related authoring guidance states the supported fields and limitations.
Out of scope: Cross-provider model-name translation, arbitrary frontmatter passthrough, new codex: namespace semantics, the broader #2108 translation program, other reporter-listed native fields without separate verification and scope, changes to execution consent, or implementation of a model runtime in APM.
Review contact: Daniel Meppiel (@danielmeppiel)
Reason: Formatting-only republication of the unchanged human-approved scope at #3126 (comment); the original remains the rationale and context source. Recorded by Copilot on behalf of Daniel Meppiel (@danielmeppiel) following his explicit acceptance of these eight bounded scopes on 2026-10-02 and his subsequent instruction to start their delivery. No scope expansion, new product decision, assignment or merge approval.Decision: approve
Area: project
Scope: Additional specification and conformance work only for the already accepted Codex model/model_reasoning_effort preservation and unsupported-metadata diagnostics in PR #3150. Retain the functional scope and exclusions at #3126 (comment). Reuse genuinely applicable existing requirements first; add or clarify only the missing OpenAPM promises for that accepted behavior, following the existing spec-review and versioning process.
Done when: Every changed promise has an accurate requirement mapping and real corresponding conformance assertions. Where normative text changes, update the canonical anchors, Appendix C, requirements manifest, affected schemas or fixtures as needed, marked tests and generated CONFORMANCE.md/CONFORMANCE.json together. Complete genuine required spec review and preserve evidence of actual execution. Do not invent citations or weaken the contract to fit current output; any production defect or broader work exposed by this exercise is reported and left blocked pending separate authorization.
Out of scope: New Codex fields, targets, model translation or metadata frameworks beyond the original accepted scope; general production remediation or exhausted readiness/finalization retries under this addendum; apm-spec-waiver or new test waivers; weaker tests, relaxed LOC/ownership/consent budgets or detectors; reviewer bypass; merge. All original functional exclusions remain.
Review contact: Daniel Meppiel (@danielmeppiel)
Reason: Recorded by Copilot on behalf of Daniel Meppiel (@danielmeppiel) following his explicit selection: "Authorize bounded spec/conformance work (Recommended)". Published on 2026-10-03. The approval was for PR #3150 and PR #3149 only, limited to their already accepted native-compatibility behavior. The documented waiver applies to changes with no observable behavior delta; absence of a matching requirement is not itself that exception. This authorizes the bounded spec/conformance work unit through normal planning and authority gates, not a blanket restart of other exhausted remediation, a waiver, acceptance of non-executed reviews, or a merge.- added a commit that references this issue
on Oct 3, 2026 Decision: approve
Area: project
Scope: One separately named bounded schema/report repair unit for PR #3150 under issue #3126. Fix the intrinsic Draft7 closed-fold/allOf reserved_slot_anchor contradiction in the canonical apm-spec-guardian review-report schema and necessary generated copies, with focused positive/negative regression tests and directly related documentation. Preserve required anchors, closed-object validation and unrelated return contracts. After exact plan approval, allow exactly one actual targeted spec-editor-synthesizer correction under apm-spec-guardian using the genuine retained four-panelist and original synthesizer evidence, explicitly resolving F9's invalid Section 9.2 future-work reservation claim without inventing a normative reserved slot or silently deleting a finding. Correct only the existing spec advisory comment 5972650749 and PR #3150 body, preserving original review history and accurately reporting current evidence and unresolved gates.
Done when: The canonical owner and generated copies are verified; focused regression tests prove valid deferred items are accepted while missing required anchors, unknown properties, invalid identifiers and invalid types remain rejected, with unrelated contracts unchanged. The single genuine targeted synthesis return is preserved with attributable execution and passes the repaired schema and explicit F9 semantic-disposition check; if that one correction fails, the unit returns blocked. Actual current-main local pre-push lint requirements, exact-head commands/results, lock preservation and normal commit ancestry are evidenced. Existing spec advisory 5972650749 and PR body are refreshed and read back, nominate only this newest applicable scope URL, preserve template headings/comments/checklist order, correct the stale Mode B failure claim and receipt/source_skill attribution, and distinguish historical from new evidence without claiming overall readiness or merge permission.
Out of scope: Production code or normative specification changes; new features or targets; four-panel rerun or a second synthesis correction attempt; reopening exhausted original spec/general readiness attempts or adding a delivery issue; catch-all permissive schemas, relaxed contracts, waivers, reviewer bypass or merge; amend or published-history rewrite; changes to original raw review returns or terminal receipts; changes to old general advisory 5957558935, PR #3149, reviewers, assignments or labels. No repository mutation before a verified strict record plus the fresh human execution instruction and approval of the exact bounded plan. Exposed work beyond this grant remains blocked pending separate authorization.
Review contact: Daniel Meppiel (@danielmeppiel)
Reason: Recorded by Copilot on behalf of Daniel Meppiel (@danielmeppiel) following his explicit selection on 2026-10-05: "Authorize bounded schema and report repair (Recommended)". The exact question authorized review-tooling repair, regression tests, one targeted synthesis correction and existing PR #3150 public records, while excluding production code, new features, a full panel rerun, broader readiness retries and merging. This is a new bounded grant beyond the earlier spec-only record #3126 (comment); all original records and remaining exclusions are preserved. The machine record is evidence, never implementation permission by itself. This AI-generated transcription may contain errors; it records the human decision rather than granting independent authority.Decision: approve
Area: project
Scope: One separately named bounded schema/report repair unit for PR #3150 under issue #3126. Fix the intrinsic Draft7 closed-fold/allOf reserved_slot_anchor contradiction in the canonical apm-spec-guardian review-report schema and necessary generated copies, with focused positive/negative regression tests and directly related documentation. Preserve required anchors, closed-object validation and unrelated return contracts. Update only the two schema-derived integrity hashes in apm.lock.yaml: the deployment content_hash matched by exact value path .agents/skills/apm-spec-guardian/assets/synthesizer-return-schema.json, and local_deployed_file_hashes['.agents/skills/apm-spec-guardian/assets/synthesizer-return-schema.json']. After exact plan approval, allow exactly one actual targeted spec-editor-synthesizer correction under apm-spec-guardian using the genuine retained four-panelist and original synthesizer evidence, explicitly resolving F9's invalid Section 9.2 future-work reservation claim without inventing a normative reserved slot or silently deleting a finding. Correct only the existing spec advisory comment 5972650749 and PR #3150 body, preserving original review history and accurately reporting current evidence and unresolved gates.
Done when: The canonical owner and generated copies are verified; focused regression tests prove valid deferred items are accepted while missing required anchors, unknown properties, invalid identifiers and invalid types remain rejected, with unrelated contracts unchanged. The single genuine targeted synthesis return is preserved with attributable execution and passes the repaired schema and explicit F9 semantic-disposition check; if that one correction fails, the unit returns blocked. Both permitted apm.lock.yaml values equal the actual regenerated schema-file SHA256, all other parsed lock content is unchanged, and uv.lock is byte-identical. Actual current-main local pre-push lint requirements, exact-head commands/results and normal commit ancestry are evidenced. Existing spec advisory 5972650749 and PR body are refreshed and read back, nominate only this newest applicable scope URL, preserve template headings/comments/checklist order, correct the stale Mode B failure claim and receipt/source_skill attribution, and distinguish historical from new evidence without claiming overall readiness or merge permission.
Out of scope: Production code or normative specification changes; new features or targets; four-panel rerun or a second synthesis correction attempt; reopening exhausted original spec/general readiness attempts or adding a delivery issue; catch-all permissive schemas, relaxed contracts, waivers, reviewer bypass or merge; amend or published-history rewrite; changes to original raw review returns or terminal receipts; changes to old general advisory 5957558935, PR #3149, reviewers, assignments or labels. Preserve uv.lock and every dependency pin, source, resolution, ownership, target and unrelated deployment field; no unrelated lock-state regeneration or skipped integrity checks. No repository mutation before a verified strict record plus the fresh human execution instruction and approval of the exact bounded plan. Exposed work beyond this grant remains blocked pending separate authorization.
Review contact: Daniel Meppiel (@danielmeppiel)
Reason: Recorded by Copilot on behalf of Daniel Meppiel (@danielmeppiel) following his explicit selection on 2026-10-05: "Authorize bounded schema and report repair (Recommended)", followed by "allow everything, I need you to move forward fast and stop asking questions". The latter resolves the strict-record-only footer exception and the two necessary generated-schema integrity-hash updates within this already bounded grant, not other PRs, production work, broader retries or merging. This record supersedes #3126 (comment) for this work unit by making the lock clarification explicit; that unedited record and the earlier spec-only record #3126 (comment) remain preserved. AI attribution stays in this permitted Reason field instead of an incompatible standalone footer; the normal PR advisory footer/watermark contract remains required. The machine record is evidence, never implementation permission by itself. This AI-generated transcription may contain errors; it records the human decision rather than granting independent authority.Decision: approve
Area: project
Scope: Resume end-to-end convergence of our existing PR #3150 for issue #3126 in the new convergence-20261005T122639Z run. Deliver the previously accepted preservation of officially documented model and model_reasoning_effort in native Codex agent TOML, accurate unsupported-metadata diagnostics, absent-field and other-target preservation, and related guidance. Fold all correctness, regression, conformance, documentation, review-report and finalization gaps within that bounded behavior. Obtain an actual full-schema spec-editor-synthesizer return under apm-spec-guardian using the exact current schema and attributable retained evidence, resolving F9's invalid reserved-slot claim and ensuring the entire return is consistent; never substitute a manually assembled report. Run genuine general review through autopilot-pr-merge-worker and its composed review worker. Necessary generated copies and their exact content-derived integrity hashes may be refreshed with full accounting; preserve unrelated lock state and dependency pins.
Done when: Accepted behavior is delivered and supported by genuine exact-head functional and mutation evidence; complete current conversation and real reviewer executions are preserved. The actual full synthesis passes the declared schema and semantic disposition checks. Current main is incorporated without rewriting published history; full local CI-mirror lint, canonical completion schema and owner semantic verification pass with actual exits/output. Checkout is clean, lock changes accounted for, required CI is complete and successful, and live head/base/nonconflicting mergeability are rechecked. After all CI, review and PR-body work, one new terminal advisory truthfully recommends ship_now at the exact head, is verified as the latest top-level PR comment, and discloses any remaining human branch-protection review requirement. Preserve old blocked receipts and advisories as historical; do not merge.
Out of scope: Cross-provider model translation, arbitrary frontmatter passthrough, new codex namespace or target/applicability feature semantics, unrelated native fields, execution-consent changes, a model runtime, unrelated normative/product changes, dependency upgrades or unexplained lock churn; taking over contributor work or another PR. No fabricated reviews, manually stitched output represented as an agent return, weakened schema/owner/CI gates, review bypass, human approval impersonation, auto-merge, merge, amend or published-history rewrite. The new run retains the merge-worker caps of four outer iterations, two Copilot rounds and three CI recoveries; closed-attempt budgets/history remain immutable, not erased or silently reused.
Review contact: Daniel Meppiel (@danielmeppiel)
Reason: Recorded by Copilot on behalf of Daniel Meppiel (@danielmeppiel) from the live human direction relayed by the product-lead session on 2026-10-05: "your goal is to keep looping until what we committed working on is in mergeable state with a ship_now comment as last comment", together with "allow everything, I need you to move forward fast and stop asking questions" for routine in-scope details. This is the renewed bounded execution grant for this PR, not permission to merge or add product scope. It supersedes #3126 (comment) as the nominated current run scope and preserves that closed schema/report attempt, the original acceptance at #3126 (comment) and all intervening records unchanged. The authorized coordinator approves the exact in-scope plan before technical mutation. This strict machine record is evidence, never implementation permission alone. By the explicit strict-record exception, AI attribution is inside Reason; ordinary advisories retain their footer/watermark. This AI-generated transcription may contain errors.- added a commit that references this issue
on Oct 6, 2026
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Describe the bug
When an
.agent.mdis deployed for thecodextarget,AgentIntegrator._write_codex_agent(
src/apm_cli/integration/agent_integrator.py) emits onlyname,descriptionanddeveloper_instructions. Any model pinning is discarded silently, with no warning (unliketools,which at least warns).
Codex does honor these keys in agent files and lets them override the parent session
(openai/codex
codex-rs/core/src/agent/role.rs,AgentRoleOverrides/build_next_config:model,model_reasoning_effort,model_reasoning_summary,model_verbosity,personality,service_tier). The agent-file structRawAgentRoleFileTomlflattensConfigToml, so all of them arevalid keys there.
So an agent shared through APM to deliberately run on a specific model or effort, for cost, capability
or safety reasons, runs on whatever the parent session uses once it reaches Codex. Nothing tells the
author or the consumer. For a package manager whose purpose is sharing agents across harnesses, this is
a silent semantic change of the shared artifact.
To Reproduce
apm install --target codexproduces.codex/agents/bot.toml:Expected behavior (any of these, in order of preference)
metadata through explicit namespaced declarations"), e.g.
deny_unknown_fields).model(or any non-translated key) is dropped for Codex, like theexisting
toolswarning.Environment: APM 0.32.0 (f0509d7), macOS arm64.
Additional context
status/needs-design,priority/low). This issue is the concrete,user-facing bug that could ship before the full design, and [BUG] Codex target silently drops agent MCP tool scope #2181 is a precedent for Codex agent
scope being dropped.
lifecycle: post-installscript that re-applies acodex:frontmatter block to the generated TOML. It works, but
apm auditthen reports drift.