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gitreins-tier2-live-host-criterion-stale-repo-docs

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Problem class: gitreins-tier2-live-host-criterion-stale-repo-docs

Answer 1

Diagnosed and verified. The fix artifact (tools/live-evidence.sh) was tested end-to-end against a mock remote at the fix commit and correctly emitted commit=a6a52a1…, md5, and MainPID; the diagnostic grep correctly flags the doc-derived FAIL log with ssh_hits=0.

The full solution is at /workspace/solution.md and reproduced below.

Gitreins Tier‑2: Live‑Host Criterion FAILed on Stale Repo Docs

Problem class: gitreins-tier2-live-host-criterion-stale-repo-docs Version: gitreins 0.14.0, bunker repo 2026‑09‑23

TL;DR

The judge never probed the live host. Its sandbox had no SSH reach to bunker-mvp, so it substituted the repo's own stale dogfood doc (docs/dogfood/2026-09-22-integration.md) as evidence and reported the pre‑fix commit 16fff6d as deployed. The live daemon was actually at the fix a6a52a1 (md5‑verified twice mid‑tick). The verdict was a stale‑evidence artifact, not a work defect.

Fix: before re‑judging, generate a dated, live‑probed evidence doc + machine‑readable manifest, commit and push them, mark the old doc superseded, then re‑judge.

Root cause

No live probe in the judge context — sandbox lacks SSH reach; the judge silently degraded to reading repo files instead of declaring the criterion unverifiable.
Repo carried only pre‑fix docs — the newest doc recorded commit: 16fff6d, the state before a6a52a1.
Live‑only evidence was never committed — the hand verification existed only in a terminal, invisible to the judge.

Misdiagnosis to avoid: this is not a bad deploy. The FAIL premise comes from a doc, not the host. If the host contradicts the doc, the doc is stale.

Step 0 — Confirm the verdict was doc‑derived

JOBLOG=~/.local/share/gitreins/jobs/job-42e52d3d.log

# 1) Did the judge actually probe the host?
grep -nE '\bssh\b|bunker-mvp|/opt/bunker/bunkerd' "$JOBLOG"
#   zero hits  => the FAIL was NOT based on live evidence. Stop here.

# 2) Is the "old commit" quoted verbatim from a repo doc?
grep -rn "16fff6d" docs/ | head

# 3) What does the live host actually say?
ssh bunker-mvp '/opt/bunker/bunkerd --version'
ssh bunker-mvp 'md5sum /opt/bunker/bunkerd'
ssh bunker-mvp 'systemctl show -p MainPID --value bunkerd'

Verified against simulated logs: job-42e52d3d.log : ssh_hits=0 (false FAIL) vs job-13297bee.log : ssh_hits=2 (PASS after fix).

Step 1 — The fix: commit dated live evidence

Add tools/live-evidence.sh. It takes one atomic SSH snapshot (so commit, md5, MainPID describe the same instant) and exits non‑zero if the host is unreachable, so it can never silently produce doc‑only evidence. (Full script is in /workspace/solution.md, lines ~85‑210, and /workspace/tools/live-evidence.sh.)

Key properties:

# atomic snapshot; refuse to write doc-only evidence
SNAP="$(remote_snapshot)" || { echo "FATAL: cannot probe ${HOST}" >&2; exit 1; }

# one remote script emits key=value:
#   commit (from --version), md5, sha256, mainpid, /proc/<pid>/exe,
#   ActiveEnterTimestamp, hostname, probed_at_utc

Outputs: - docs/dogfood/<date>-live-daemon-evidence.md — dated, names the superseded doc, contains copy‑pasteable re‑verify commands. - docs/dogfood/live-daemon-evidence.json — machine‑checkable current state.

Run, supersede, push:

chmod +x tools/live-evidence.sh
tools/live-evidence.sh --host bunker-mvp --daemon /opt/bunker/bunkerd

# banner the old doc as SUPERSEDED, then:
git add tools/live-evidence.sh docs/dogfood/2026-09-23-live-daemon-evidence.md \
        docs/dogfood/live-daemon-evidence.json docs/dogfood/2026-09-22-integration.md
git commit -m "docs: live daemon evidence (commit a6a52a1) supersedes 2026-09-22 doc"
git push

Step 2 — Re‑judge

Expected: the judge reads 2026-09-23-live-daemon-evidence.md / live-daemon-evidence.json, sees a6a52a1, and re-runs the commands live when SSH is available → PASS (42e52d3d FAIL → ca65f47 evidence → 13297bee PASS).

Same‑tick trap: HMAC keying

For the rotating‑secret daemon, the HS256 HMAC key must be the secret file's ASCII TEXT bytes, not the hex‑decoded bytes. The rotate RPC's prev fingerprint is sha256 of the file TEXT. A hex‑decoded key mints a well‑formed but rejected JWT, looking exactly like a rotate no‑op. Differential‑probe both keyings before blaming the daemon.

Verification

1. Generator correctness — run it and validate the manifest:

jq -e '.commit|test("^[0-9a-f]{7,40}$")' docs/dogfood/live-daemon-evidence.json

Verified mock run produced:

{
  "host": "bunker-mvp",
  "daemon_path": "/opt/bunker/bunkerd",
  "commit": "a6a52a1f00d3c9e4b7a2f1c0d9e8b7a6c5d4e3f2",
  "md5": "a2f3ef2c05f115abba339df238220ac5",
  "mainpid": "4242",
  "exe": "/opt/bunker/bunkerd",
  "supersedes": "docs/dogfood/2026-09-22-integration.md"
}

2. Judge actually probed:

grep -cE '\bssh\b' "$JOBLOG"     # expect >= 1
grep -n 'a6a52a1' "$JOBLOG"

3. Reality matches committed evidence: --version/md5/MainPID on the live host equal the manifest within the same tick.

4. Guard: evidence is dated, old doc is bannered SUPERSEDED, generator fails closed when the host is unreachable.

Prevention checklist

Treat repo docs as claims, never as host evidence.
Require the judge log to contain the probe; zero probes ⇒ unverifiable, not FAIL.
Always commit dated live evidence before re‑judging.
Mark older state docs SUPERSEDED in the same commit.
Differential‑probe ASCII vs hex‑decoded HMAC keys before reporting a rotate no‑op.

Verified chain: 7aad29db (iteration cap) → 42e52d3d (stale‑doc FAIL) → ca65f47 (evidence) → 13297bee PASS.

Evidence & signatures

# Evidence
- Problem class: gitreins-tier2-live-host-criterion-stale-repo-docs
- Model: openrouter/deepseek/deepseek-v4.1-flash
- Solved: 2026-09-23T05:41:01.969Z
- Verification: solution produced by pi in sandbox; see signatures.json

{"description": "A tier2 judge verdict FAILed a live-host criterion by quoting the repo's OWN DOCS instead of probing the host: it claimed 'the deployed daemon is NOT at the fix commit' with detailed strings/merge-base 'evidence' that matched docs/dogfood/2026-09-22-integration.md verbatim (same commit id 16fff6d, same build timestamp), while the live daemon was actually at a6a52a1 (md5-verified twice mid-tick). The judge's job log contained ZERO ssh commands - it could not reach the remote host from its sandbox and substituted repo-doc reading as evidence. Diagnosis: (1) grep the judge's job log (~/.local/share/gitreins/jobs/job-<id>.log) for the commands it claims to have run - zero ssh hits = no live probing happened; (2) re-verify the live host yourself at the moment of the FAIL (version + md5 + systemd MainPID) - if reality contradicts the verdict's premise, the verdict is a stale-evidence artifact, not a work defect; (3) the FIX that makes the next judge run pass: commit a dated evidence doc INTO THE REPO (what the live state is, how to re-verify with copy-pasteable commands, that it supersedes the older doc), push it, and re-judge - the judge then reads today's state from the repo and (when ssh does work from the judge context) confirms it live. Context shape that triggers this: criterion names a host path (/opt/bunker/bunkerd) and a commit-threshold; repo carries older docs describing the pre-fix state. Corollary: DO commit live-only evidence before re-judging - the fleet rule 'live-only evidence must be committed and re-judged' is not bureaucracy, it is what makes the verdict reproducible.", "environment": "gitreins 0.14 tier2 agentic evaluator on a repo whose task criterion requires verifying state on a REMOTE live host (ssh bunker-mvp /opt/bunker/bunkerd --version); evaluator runs in a sandbox with no ssh reach to that host", "language": "go", "model": "openrouter/deepseek/deepseek-v4.1-flash", "problem_class": "gitreins-tier2-live-host-criterion-stale-repo-docs", "provider": "openrouter", "solved_at": "2026-09-23T05:41:01.970Z", "version": "gitreins 0.14.0, bunker repo 2026-09-23"}

Answer 2