Complete the reopened context-budget source audit

[seathatflowsinourveins]

Scope

Complete the reopened C5 source audit: review six names and three instruction documents, retain native defaults for the names, and apply their nine current disposition rows. The unchanged main-catalog watch returned nine unreviewed items; the candidate now returns zero with all document hashes matching.

• Base commit: b4e1fa6. Rebase-only after trading: keep the SDK quote-stream mute watchdog off for extended-hours runs #812 landed; all four C5 content files are byte-identical to the initially published345b8d00.
• Lane: lane:foundation; draft until the command center's cross-family read.
• Owned paths: new completion decision and receipt, nine catalog rows, and two test-fixture expectations. No instruction, template, installer, trading, pin or live client configuration change.
• A21 places completion in this separate PR. docs: select one host-tool default and map owner amendments #805 stays exactly at23d4366e; its partial decision and recorded observations remain unchanged and are linked by immutable path/commit.
• Shared-file neighbours: Record upstream evaluation rule and context read-back waiver #802, Correct Claude team mechanics and stale feature dispositions #813, Recover and check Codex profiles alongside shared credential pointers #770, IBKR paper gateway signs in by itself: stored paper login by pointer, rootless container owner rule in the credential checker, adopted recreate script #769 and Clarify namespace and cached-observation contracts #764. Take current main's catalog/registry on rebase, re-apply only these nine keys, and re-register this PR's files. Rebase after docs: select one host-tool default and map owner amendments #805 lands; no peer branch edits.

SOTA sources

• openai/codex@rust-v0.160.1/d27764b8 — guardian feature defaults: both UnderDevelopment/default false. Installed0.160.1 features list agrees.
• Tagged Guardian history guard and root-handoff declaration. Unchanged scenario files are source-reviewed, not executed.
• Codex0.160.1 release note, published2026-10-05, and anthropics/claude-code@fbe20e00 —2.1.292 changelog, alongside the installed-client source proof retained by #805@23d4366e.
• Current vendor bodies, reread2026-10-06: Claude memory, skills, environment variables, CA trust, and official Codex AGENTS Markdown. The watched Codex row now uses verified Markdown; the test fixture uses the same supported route.
• Repository hot-file protocol@e28d0eec and disposition schema.

Evidence-class table

Claim	Evidence class	Command / receipt
Nine source decisions complete; native overrides declined	source_review	New completion review.json; exact installed artifact/tag/document identities
Candidate watch has zero unreviewed, complete coverage/no cache, three unchanged document digests	local_integration	Native --network --dry-run --json at2026-10-06T23:08:10Z
Document changes reopen the audit and preserve its carrier	synthetic / local_integration	Existing test_upstream_surface_watch.py suite
Registry/schema/reference consistency	local_integration	validate.py; no live provider/GPU execution

Local commands run

All substantive commands ran at nice19/ionice3.

• python3 scripts/upstream_surface_watch.py --check-dispositions: exit0,311 rows.
• python3 scripts/upstream_surface_watch.py --network --dry-run --json: exit0; candidate unreviewed0, all3 document hashes match. Before application: exit0/unreviewed9, retained separately.
• python3 -m unittest discover -s tests -p test_upstream_surface_watch.py: exit0,114 tests,6 skips for optional cached upstream-input checks. The first run exited1 with75 fixture-constructor errors because the new Markdown URL lacked a synthetic mapping; preserved. Only the fixture URL and expected carrier changed, retaining identical synthetic bytes and unchanged watch implementation.
• Native candidate/diff check: exit0, exactly3 document updates and6 additions, unrelated rows/top-level metadata preserved.
• python3 scripts/validate.py: exit0 before commits, after the final shared-file commit, and after the rebase. Initial checkpoint:69 components,4 profiles,214 receipts,10363 hashed files; later main additions retain their own evidence.

Two earlier watch usage failures exit2 before fetch because the long worktree could not fit the160-character details summary. Both are retained; a supported per-invocation Worktrunk short owned path/no-hooks resolves the command without saved settings changes.

Decision record

docs/decisions/2026-10-06-harness-context-budget-completion.md and evidence/artifacts/ns2604-context-audit-completion-20261006/review.json. Keep native defaults; revisit on a supported release and qualified host need, or any changed instruction-body digest. Previous reviewed body bytes were unavailable, so no historical semantic delta is invented. Source review does not establish runtime acceptance or token savings.

Host evidence

No evidence/hosts file, host installation or platform-status change. Local catalog-candidate zero is separate from landed-main or deployed-client state.

Checklist

• No workflow or action changes.
• No credential values/raw conversations/private active configurations committed.
• No new paid hosting or billing surface.
• Peer-owned files/worktrees and immutable observations preserved.
• Preserve unrelated rows, update the three existing document rows by key, and append only newly reviewed name rows.
• Shared catalog and evidence registry are committed last.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-07T02:35:53.043826Z	9e0992b	Draft marked ready

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• Comment "@codex review" or "@codex security review".

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[seathatflowsinourveins]

Claude session native-agent-stack-5f: landing at head 366804eaeebfa5b8bf14c5d6cd191134789f75f6. The command center (wsl-architecture-design) gave its ACK at 9e0992b0578b, which reaches this head only through recorded mechanical refreshes whose owned non-registry patch-ids are equal (its carry rule); under the user's 2026-10-04 decision it owns merges that touch the hot registry. The read-only cross-family review (GPT-6.1 Sol max, the packaged Codex SDK worker) returned ACCEPT at 9e0992b0578b; this head is reached from it through recorded carry edges (equal owned patch-ids, or a cross-family delta read returning ACCEPT at the edge's target), with no P1 item.

Observed main cd1cd78ec3f8bb82ca4343be4f859a2e107e2035. coordination/merge_tree_landing_check.py (sha256 a11649fcf2e5844c…) exit 0:

main cd1cd78ec3f8bb82ca4343be4f859a2e107e2035 head 366804eaeebfa5b8bf14c5d6cd191134789f75f6 base cd1cd78ec3f8bb82ca4343be4f859a2e107e2035 merged-tree 64987484295cc6a12db4d63948a94849efe59e91 merge-tree-exit 0
ok   1: clean three-way merge
ok   2: merged-vs-main paths 5, outside PR-owned 0 []
ok   3: main drift 0 paths, overlap with PR-owned inputs (registry excluded) []
ok   4: registry foreign rows equal True, order preserved True, PR-owned rows 4, unowned top-level keys differing []
ok   5: merged files[] sorted by path with no duplicates: True (10417 rows)
LANDABLE
condition 5: merged files[] sorted and unique (tree 64987484295cc6a12db4d63948a94849efe59e91)

Required checks at this head: 7 pass . Unresolved review threads: 0.

[seathatflowsinourveins]

Claude session native-agent-stack-5f: post-merge observation. Landed as e712bae606e8d27f010af8e3c13ded6b7a7c207a (parent cd1cd78ec3f8bb82ca4343be4f859a2e107e2035), tree 64987484295cc6a12db4d63948a94849efe59e91. The landed tree equals the checked merged tree and the parent is the observed main.