Roadmap item 5: Add inactive telemetry trace ledger (Codex-authored)

[yihanzhu]

Summary

• telemetry/v1: a canonical trace-ledger validator built by the Codex construction session before it stopped.
• Authored by the Codex construction session; adopted for review by the operator's decision on 2026-09-05 (keep both unpushed Codex units and publish them once the eval framework landed). Published as-is from the local branch; no content changes.
• Base: main (built against a637451; needs a merge of current main before it can land, which the operator-authorized merge chain performs only after a clean review).

Exact candidate

• Head: 044896a
• Roadmap: item 5, Agent evals and telemetry (Codex unit)

Fresh CI and a fresh independent review are required for this head. Findings are folded here.

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View logs

[yihanzhu]

Codex reviewer (cross-vendor, read-only)

Reviewed-head: 6b5e8ee
Reviewed-base: e0c31fb
reviewer: gpt-5.5 @ high

Posted verbatim by codex-review.sh (codex exec review --json --base refs/codex-review/242-10828/base in an isolated temp worktree, sandbox forced read-only). Comments only — Codex never pushes, approves, or merges.

The added inactive telemetry trace-record validator, tests, and restore-manifest/docs updates appear internally consistent, bounded, and covered by focused tests. I did not identify a discrete correctness, security, or maintainability issue that should block the patch.