[copilot-session-insights] Daily Copilot Agent Session Analysis — 2026-09-10

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🤖 Copilot Agent Session Analysis — 2026-09-10

Executive Summary

• Sessions Analyzed: 50
• Analysis Period: 2026-09-10, 03:22Z–05:19Z
• Completion Rate: 22.0% (11/50), down 24pts from 09-09 (46%); 20-day mean is 29.7% (range 4–78%) — today sits below trend but within the established saw-tooth pattern
• Average Duration: 4.36 min (median 0 min)
• Experimental Strategy: none — standard run (roll=91 ≥ 30 threshold)

Only 2 unique branches produced all 50 sessions today (copilot/fix-gh-aw-logs-resolution, 24; copilot/fix-static-github-agent-enclaves, 26) — tied for the lowest branch diversity seen across 20 recorded days. This concentration drives most of today's headline metrics; see below.

Key Metrics

Metric	Value	Trend
Total Sessions	50	→
Successful Completions	11 (22.0%)	↓ vs 09-09 (46%)
Failed	4 (8.0%)	→
Action Required (gate/pending)	34 (68.0%)	↑
Cancelled	1 (2.0%)	→
Average Duration	4.36 min	↓ vs 09-09 (19.6 min)
Median Duration	0 min	→
True-Agentic Success Rate	3/3 (100%)	→ (5th consecutive day)
Orphaned-Branch Escalations	0	→ (20th consecutive 0% day)

Session Trends Analysis 📈

Completion Patterns

The 20-day completion rate keeps a saw-tooth pattern with no sustained trend (mean 29.7%, range 4–78%); today's 22% is a step down from 09-09's 46% but unremarkable against that range. The count panel shows how thin the "successful" green band stays most days relative to the red band — a reminder that headline volume (always 50/day) hides which branch/workflow mix is driving the number.

Duration & Efficiency

Duration is flat and low (well under 5 min) on most days, punctuated by three sharp spikes — all three are now explained by the merge_invalidation_cascade pattern (runs sitting pending until a PR merge/close event fires), not real long-running execution. Today's 4.36 min average is back in the normal range.

Success Factors ✅

1. True-agentic completions remain perfect: "Addressing comment on PR Fix local cross-repository workflow resolution in gh aw logs #59859" (×2) and "Running Copilot cloud agent" (×1) all succeeded — 3/3 = 100%. This extends a streak to 5 consecutive days at 100% true-agentic success (09-06 through 09-10), while the CI-gate bundle continues to run far lower (~14% today). Genuine task failures remain rare; most "failure" signal is gate/review noise, not the agent getting things wrong.

2. Healthy underlying branch health once cascade noise is removed: copilot/fix-gh-aw-logs-resolution looks weak at face value (10/24 = 41.7% success), but excluding the 4 merge-invalidation-cascade artifacts and 1 unrelated cancellation, the remaining 19 genuine attempts convert at 52.6% — consistent with a normally-functioning branch, not a struggling one.

3. Merge-invalidation cascade is now a reliably diagnosable pattern: verified for the 4th time in 5 days (see Failure Signals below), meaning a growing share of daily "failures" can be confidently attributed to timing artifacts rather than real regressions.

Failure Signals ⚠️

1. merge_invalidation_cascade (recurring, 4/20 days): PR Fix local cross-repository workflow resolution in gh aw logs #59859 merged at 2026-09-10T04:23:10Z; 4 in-flight gate runs (CGO ×2, CWI ×2) on its branch all reported conclusion=failure at 04:23:10–11Z — the identical second. Verified via gh pr list. This is a timing artifact, not a real regression, and it also inflates that branch's average "duration" since invalidated runs can sit pending for tens of minutes before the merge event. This is the 4th confirmed occurrence in the last 5 recorded days (09-06, 09-07, 09-09, 09-10) — worth treating as a standing per-run check rather than a rare edge case.

2. branch_level_stuck_gate (recurring, 2/20 days): copilot/fix-static-github-agent-enclaves sits at 25/26 (96%) action_required with only 1 clean success. This is the 2nd time this branch-wide pattern has appeared (after 09-09's fix-threat-detection-error). Important refinement: unlike 09-09, this branch's PR (Fix static GitHub agent enclave startup #59878) is actively assigned to Copilot and a human reviewer (lpcox), and was updated within the last hour — so the stuck-gate signal here reflects gates queued behind active review, not an abandoned branch. Branch-wide action_required alone should not be read as an orphan signal; it needs cross-checking against PR assignee/reviewer/recency (see Orphaned Branch section).

3. Extreme branch concentration: with only 2 branches producing all 50 sessions, day-level aggregate metrics (completion rate, burst-clustering gap) are almost entirely determined by the mix of these two branches rather than being representative of typical agent behavior across the fleet.

Prompt Quality Analysis 📝

Per-Prompt Breakdown

No conversation transcript data is available (see Notable Observations), so prompt-text-level quality scoring is not possible this run. Workflow-name-level proxy analysis:

• High-signal workflow names this run: "Addressing comment on PR Fix local cross-repository workflow resolution in gh aw logs #59859" — specific, references a concrete PR and presumably a specific reviewer comment; 2/2 succeeded.
• Low-signal / bundle workflow names (CGO, CWI, CJS, Agentic Commands, Squad) are CI-gate automation, not user-authored prompts, so prompt-quality analysis doesn't apply to them directly.

Orphaned Branch Escalation Alerts 🚨

Branches with ≥5 simultaneous gate firings and no Copilot agent assigned for >2 hours.

Summary

• Orphaned Branches Today: 0 out of 3 open PRs (0%)
• Historical Baseline: 0.0% orphaned rate (mean over 19 recorded prior days)
• Status: NORMAL

Escalation Candidate Details

Escalation Candidates

✅ No orphaned branches exceed the escalation threshold today. Only 3 open PRs exist right now (#59914 actions-lock bot PR, #59878 fix-static-github-agent-enclaves — assigned to Copilot + lpcox, #56568 resolve-merge-conflict — assigned to Copilot + dsyme). Only 2 workflow runs were in-progress in the last 6 hours, both on main; no branch reached the ≥5-gate threshold.

CI Waste Estimate

• Orphaned gate-hours today: 0 (no escalation candidates)
• Recoverable capacity: n/a — nothing orphaned to recover

Notable Observations

Loop Detection and Session Diagnostics

Loop Detection

• Not measurable this run — see Conversation Logs note below.

Tool Usage

• Not measurable this run — see Conversation Logs note below.

Burst-Clustering Signal (standing metric since 09-08)

• Sessions clustered by ≤10s inter-arrival gap: isolated sessions succeeded 33.3% (2/6) vs burst-fired sessions 20.5% (9/44) — a 1.6× gap. Direction held for a 4th consecutive day (isolated always > burst-fired), but the magnitude keeps shrinking/varying (8× → 3.8× → 1.27× → 1.6×), consistent with the working hypothesis that extreme branch concentration (2 branches today) dilutes this signal by mixing real and gate-stub sessions within the same bursts.

Conversation Transcript Logs

• Empty for the 20th consecutive recorded day (0 files in logs/). All analysis this run remains metadata-only — no turn-by-turn model/token/tool-call data is available for this or any prior recorded day. This is now a persistent, structural gap rather than an intermittent one; if this workflow is expected to have transcripts, it likely warrants direct investigation into the log-fetch step rather than continued retries here.

Experimental Analysis

Standard analysis only this run — no experimental strategy (roll=91 ≥ 30 threshold). Two prior experimental findings continue to be tracked as standing metrics: burst_clustering_temporal_density (see above) and merge_invalidation_cascade / branch_level_stuck_gate detection (see Failure Signals).

Actionable Recommendations

For Users Writing Task Descriptions

1. Reference concrete PRs/comments: "Addressing comment on PR Fix local cross-repository workflow resolution in gh aw logs #59859" (specific, targeted) continues to show a 100% success rate across 5 days, reinforcing that specificity correlates with reliable completion.

For System Improvements

1. Distinguish merge-invalidated failures from real ones in dashboards/alerting: with merge_invalidation_cascade now confirmed on 4 of the last 5 days, any automated failure-rate alerting should exclude same-second, same-branch failure clusters that coincide with a PR merge/close event — otherwise completion-rate metrics will keep looking artificially worse than actual agent/CI health.
   • Potential impact: High — today alone, excluding the 4 cascade artifacts would raise the affected branch's success rate from 41.7% to 52.6%.
2. Cross-check branch-wide action_required against PR assignee/reviewer state before flagging as stuck: today's branch_level_stuck_gate observation on copilot/fix-static-github-agent-enclaves would have been a false alarm if treated the same as 09-09's genuinely-orphaned case — it's an actively-reviewed PR.
   • Potential impact: Medium — prevents false-positive escalation noise.

For Tool Development

1. Conversation transcript fetch remains non-functional: 20/20 consecutive recorded days with zero log files. Every turn-by-turn/tool-usage/loop-detection/prompt-quality section in this report has been unavailable since tracking began.
   • Frequency of need: every run (daily)
   • Use case: enables genuine behavioral analysis (planning quality, error recovery, loop detection) instead of metadata-only proxies

Historical Trends and Statistical Summary

Trends Over Time

• Completion rate trend: saw-tooth, no sustained regime change across 20 days; today's 22% is below the 29.7% mean but within the established 4–78% range.
• Average duration trend: normally 0.5–5 min; three sharp spikes (09-01 ~26 min, 09-07 ~24 min, 09-09 ~19.6 min) are all attributable to merge-invalidation-cascade runs sitting pending before a merge/close event, not real execution time. Today's 4.36 min is unremarkable.
• True-agentic quality: 5 consecutive days at 100% success is the most stable positive signal in the dataset; the volatility in the headline completion rate is almost entirely a function of CI-gate bundle noise and branch concentration, not agent task quality.

Statistical Summary

Total Sessions Analyzed:     50
Successful Completions:      11 (22.0%)
Failed Sessions:             4 (8.0%)
Action Required (pending):   34 (68.0%)
Cancelled:                   1 (2.0%)

Average Session Duration:    4.36 min
Median Session Duration:     0.0 min
Longest Session:             44.6 min
Shortest Session:            0.0 min

Unique Branches:             2 (tied for lowest of 20 recorded days)
True-Agentic Success Rate:   3/3 (100%)
CI-Gate Bundle Success Rate: 5/35 (14.3%)
Orphaned Branches:           0/3 open PRs (0.0%)

Merge-Invalidation-Cascade Failures: 4 (all reclassified as timing artifacts, not real regressions)

Next Steps

• Investigate why conversation transcript logs have been empty for 20 consecutive recorded days — this blocks all turn-by-turn behavioral analysis
• Consider excluding merge/close-timestamp-matched failure clusters from completion-rate dashboards (4/5 recent days affected)
• When flagging branch-wide action_required clusters, check PR assignee/reviewer/recency before escalating
• Schedule follow-up analysis tomorrow (2026-09-11) to see whether branch diversity returns to the typical 6–8 range

---

Analysis generated automatically on 2026-09-10
Run: §34447193486

References:

• §34447193486 — this analysis workflow run
• §34436426114 — example merge-invalidation-cascade failure (CWI on copilot/fix-gh-aw-logs-resolution)
• §34437706643 — the sole clean success on copilot/fix-static-github-agent-enclaves (Running Copilot cloud agent)

Warning

Firewall blocked 1 domain

The following domain was blocked by the firewall during workflow execution:

• api.anthropic.com

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "api.anthropic.com"

See Network Configuration for more information.

Generated by 📊 Copilot Session Insights · claude · agent · 180.5 AIC · ⌖ 10.5 AIC · ⊞ 18.5K · ◷

• expires on Sep 10, 2026, 11:21 PM UTC-08:00

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