Agent Performance Report - Week of 2026-09-22

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Executive Summary

• Agents analyzed: 1 fully profiled this run (Metrics Collector, via direct log audit); ecosystem-wide ranking still blocked
• Total outputs reviewed: 0 new safe outputs this run (metrics collection itself is the finding)
• Average quality score: N/A — metrics/latest.json snapshot is still 21 days stale (2026-09-01), 10th consecutive affected run
• Average effectiveness score: N/A — same blocker
• Top performers: N/A (no fresh scoring data)
• Needs improvement: Metrics Collector — new finding this run (see below)

New Finding: Metrics Collector's first post-cloud-hypervisor-fix run silently under-delivered

Workflow Health Manager confirmed PR #62406 (merged 2026-09-21T16:58:35Z) resolved the
~20-day cloud-hypervisor EACCES sandbox regression that had been crashing Metrics Collector (and
~150 other workflows) for 4 consecutive days (2026-09-18 → 2026-09-21, all failure, EACCES).

I directly audited Metrics Collector's first post-fix run
(run 35680199703, 2026-09-22T02:38Z,
conclusion: success, 8.0m wall time, 150,248 tokens, $0 recorded cost) via agenticworkflows audit
rather than trusting the green checkmark:

• Only 3 MCP tool calls total: 2× agenticworkflows.status, 1× agenticworkflows.logs — no
  github.* calls, 0 GitHub API data collection observed in the tool-call trace (despite
  github_rate_limit_usage showing 25 core requests consumed, suggesting some read activity
  outside the traced MCP calls, but far short of the 24h-window pagination loop the prompt mandates).
• behavior_fingerprint: tool_breadth: narrow, agentic_fraction: 0, dispatch_mode: standalone
  — consistent with an agent that started, made a couple of exploratory calls, and stopped short of
  its documented collection loop (paginated logs calls across the full -1d window, per-workflow
  metrics extraction, ecosystem summary construction).
• push_repo_memory job reports success, but the memory/meta-orchestrators branch has
  exactly one commit total (78a0249, authored by Workflow Health Manager's run 35687398487 at
  04:44Z, ~2h after Metrics Collector's run) — Metrics Collector's own run produced no commit.
  metrics/latest.json timestamp is unchanged at 2026-09-01T02:50:27Z.
• Comparison against the last successful pre-incident baseline
  (run 35175150785, 2026-09-17) shows classification: stable / "no action needed" — but that
  comparison is misleading: the audit tool's own baseline-matching only checks turn count, posture,
  and blocked-request count, none of which distinguish "collected full ecosystem metrics" from
  "made 3 trivial calls and stopped."

This is a distinct, previously-untracked defect — not a continuation of the resolved
cloud-hypervisor EACCES incident (no EACCES/exec-permission signature present in this run), and not
the historical gpt-5.3-codex model_not_supported_error (engine resolved cleanly: codex 0.154.0,
model: copilot/gpt-5.3-codex, no model-resolution error surfaced). The failure mode is a workflow
that exits success while performing almost no work — the exact "green build, empty output" pattern
that silently masks itself from failure-based monitoring (including Workflow Health Manager's own
workflow_runs.executed/success-rate scoring, which will count this run as healthy).

Practical impact: this is now the root cause of the 10-consecutive-run metrics staleness that
every prior Agent Performance Analyzer run has flagged as blocked-on-EACCES. With EACCES now fixed,
staleness should have ended today — it didn't, because of this new short-circuit behavior.

Recommendation: add a Metrics Collector self-check (already scaffolded in the workflow's own
verification block, lines ~465-495 of metrics-collector.md, which checks STORED_DATE against
today's date and is supposed to fail loudly if latest.json wasn't refreshed) — but that check
apparently did not fire, or push_repo_memory "succeeded" despite there being no new content to
push, i.e. it silently no-op'd instead of erroring when the agent job produced no metrics JSON at
all. Suggest: (1) make push_repo_memory (or a preceding step) hard-fail if metrics/latest.json's
timestamp field is unchanged from before the run started, and (2) investigate why the Codex
engine terminated after only 3 tool calls with agentic_fraction: 0 — possibly an early/implicit
completion signal from the model rather than a crash, since no error_count was recorded
(error_count: 0 in this run's metrics, unlike the 1-per-run driver_exit_failures seen in the 4
preceding EACCES failures).

Trends

• metrics/latest.json freshness: still 2026-09-01 (21 days stale, 10th consecutive affected
  Agent Performance Analyzer run) — root cause chain updated this run: EACCES (fixed 09-21) →
  now superseded by a new "runs green, collects nothing" defect discovered today.
• No ecosystem-wide agent quality/effectiveness ranking possible again this run for the same
  reason as the prior 9 runs (no fresh snapshot), but the underlying blocker has now changed from
  infrastructure (EACCES) to workflow-logic (premature stop).

Actions Taken This Run

• Directly audited Metrics Collector's post-fix run (35680199703) via agenticworkflows audit
  rather than trusting Workflow Health Manager's "expect self-resolution" note from 04:37Z — found
  the expected recovery did not occur.
• Cross-checked the memory/meta-orchestrators branch git history directly: confirmed zero commits
  from Metrics Collector's run, one commit from Workflow Health Manager's run 2h later.
• Did not create a new duplicate P0 issue for the (now-resolved) cloud-hypervisor chain
  ([Workflow Health] P0: cloud-hypervisor "--version exited with code undefined" — 29 workflows affected across 3 engines #61528 → [Workflow Health] P0: cloud-hypervisor EACCES sandbox failure — 44 open occurrences across 40+ workflows (predecessor #61528 aut #61952 → [Workflow Health] P0: cloud-hypervisor EACCES sandbox failure — 30 open occurrences, predecessor #61952 expired unfixed #62310, all correctly closed/superseded per Workflow Health Manager's notes).
• Filed one new issue for this distinct "success-but-empty" Metrics Collector defect (see below),
  since it is a new root cause not covered by any existing open tracker.

Next Steps

1. Workflow Health Manager / maintainers: investigate why Metrics Collector's Codex engine
   terminated after 3 tool calls with agentic_fraction: 0 on its first post-EACCES-fix run.
2. Add a hard failure gate to metrics-collector.md's push_repo_memory step (or a preceding
   verification step) so an unchanged latest.json timestamp causes the run to fail loudly instead
   of reporting success.
3. Re-run Agent Performance Analyzer once Metrics Collector produces a genuinely fresh snapshot to
   unblock the 10-run-deferred ecosystem-wide quality/effectiveness ranking.

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Analysis period: 2026-09-21 to 2026-09-22
Next report: 2026-09-23 (or sooner if Metrics Collector recovers)

Generated by ⚡ Agent Performance Analyzer - Meta-Orchestrator · copilot · auto · 159.6 AIC · ⌖ 9.38 AIC · ⊞ 17.8K · ◷

• expires on Sep 23, 2026, 5:09 AM UTC-08:00

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This discussion was automatically closed because it expired on 2026-09-23T13:09:34.329Z.

Closed by Workflow