[acoliver]

Recreated after the llxprt account suspension removed original PRs #284 (base) and #287 (stacked). Heads: branch4-issue280-context-limit at 95c8c0f1 and branch4-issue283-reasoning-effort at 589e81ad.

• Native Rust CLI rejects astramedium profile because Codex context limit is hardcoded #280: Codex profile accepts any positive explicit u64 context-limit, rejects zero; registered profile/tests/codex_context_limit.rs; 63 profile/777 library/build/lint/fmt/diff passed.
• Codex profile parser requires high reasoning effort and blocks astramedium #283 (stacked on Native Rust CLI rejects astramedium profile because Codex context limit is hardcoded #280): low/medium/high reasoning-effort Option, disabled-reasoning rejects effort/summary; provider_settings and model_api propagation/omission; 20 Codex/778 library/build/lint passed.
• Both carried independent native full reviews with no actionable findings (recorded in the removed PR conversations; artifacts retained in branch-4 evalwork).

These unblock non-Codex-keyed profile loading and reasoning configuration. Do not merge pending re-verification on the restored head.

[acoliver]

Closing as superseded by merged #309, following the open-PR remediation request. Current main already implements positive explicit u64 context and low/medium/high or disabled reasoning, including request projection. The old profile parser must not replace main’s newer policies.

Unique test witnesses have been accounted for in branch-2/evalwork/results/pr-remediation-20261002/superseded304306.json: the complete parse→resolved profile→serialized reasoning chain for all efforts/disabled omission will be retained in the #300 residual candidate. That port’s verification is still in progress and is not claimed as passed here. Existing main parser/draft/backend tests remain registered. Original head 589e81adeaa839b9b202fb81b5627b35b2a3de93, remote branch and fetched preservation refs remain intact; no branch deletion or history rewrite. This closure removes the duplicated production implementation, not the retained test work.