Codex harness evidence

Checked 2026-10-04 (America/Chicago), with the real proof completed at 2026-10-05T03:50:19.168Z; fresh-tarball inference passed at 2026-10-05T03:56:16.489Z. This records one local runtime/model route, not all CLI versions, accounts, models or cloud targets.

Generated protocol schemas from the installed CLI were inspected before implementation. Official sources: app-server and authentication. The adapter uses managed CLI login rather than application-owned external token injection. No identity, plan detail, session ID, credential or raw provider transcript is included here.

The real proof created proof.txt with hello world, closed the original process, read/resumed the same persisted thread in another process and changed the file to hello Codex. File contents and resume identity were verified by the runner, rather than inferred from model output. Usage updates were snapshots, not billed-cost evidence. The opt-in runner is npm run proof:codex -- --model gpt-5.6-luna; regular package checks use synthetic protocol processes only.

Fresh packed-consumer acceptance verifies all export targets exist and imports root/browser/harness/bridge/Codex without optional SDKs. Its missing-runtime probe checks actionable guidance without launching inference. Provider fixtures test interrupt, failures, wrong auth, malformed protocol, deadlines, concurrent turns, workspace ownership, cross-process resume, permission denial and owned cleanup.

The checks above record pre-release source/tarball acceptance. Cursor local/cloud acceptance remains pending. Codex programmatic MCP configuration and cloud operation are not advertised by this adapter.

Registry release - 2026-10-05

@uppercut-labs/agent-native@0.1.1 is published and npm latest resolves to 0.1.1. Its registry download matches the reviewed GitHub release archive byte-for-byte: SHA-256 a1ce884f89eadba319d6fbad5c9b09b05575a7ab15998bcfd4a6ad8cc8228fbb, source ab79aed4b8556752b33286f2edf261a07b3921d1, 168772 bytes / 152 files.

A fresh consumer installed this exact version from npm, imported root/browser/Codex without optional peers and verified actionable missing-runtime guidance without inference. The equivalent GitHub archive had already passed the installed reusable two-turn proof with Node 24.19.0 / Codex CLI 0.145.0 / gpt-5.6-luna, same-session cross-process resume and owned cleanup. No additional inference was needed to verify the identical registry bytes. The checksum-verified GitHub route remains available when a registry cannot be reached.