[copilot-session-insights] Daily Copilot Agent Session Analysis — 2026-09-30

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🤖 Copilot Agent Session Analysis — 2026-09-30

Executive Summary

• Sessions Analyzed: 50 (48 completed, 2 in_progress at snapshot time)
• Analysis Period: 2026-09-30, 03:49–06:45 UTC (~3h window)
• Completion Rate: 54.0% (27 success / 50), 3rd-highest of 38 recorded days (behind 09-02's 78.0% and 09-18's 58.0%), +22.1pts vs the 37-day prior mean of 31.9%, and a +44pt rebound off yesterday's 10.0% low
• Average Duration: 16.4 min raw (48 sessions incl. zero-duration gate stubs); 21.3 min / 18.0 min median on the 37 non-zero-duration runs
• Experimental Strategy: none (roll=36≥30 → standard run)

⚠️ Data caveat: conversation transcript logs (*-conversation.txt) were empty for all 50 sessions — the 38th+ consecutive recorded day with this gap (flagged via missing_data). This report is metadata-only: no turn-by-turn token/tool-call/loop data was available. See Notable Observations below.

📈 Session Trends Analysis

Completion Patterns

Today's 27 successful completions (54.0%) sit near the top of the 30-day window, well clear of the 33.0% mean line, and mark a sharp +44pt rebound off yesterday's 10.0% floor — the series continues its saw-tooth pattern with no sustained trend in either direction.

Duration & Efficiency

Average duration (16.4 min) is the highest since 09-23, breaking a 4-day run of sub-5-min days, driven by genuinely longer-running gates rather than a single outlier. Orphaned-branch escalations remain flat at zero across the entire 30-day window — the most stable series tracked.

Key Metrics

Metric	Value	Trend
Total Sessions	50	→
Successful Completions	27 (54.0%)	↑↑ (+44pts vs 09-29)
Non-success (action_required/failure/cancelled)	23 (46.0%)	↓
— action_required	11 (22.0%)	↓
— failure	6 (12.0%)	↑
— cancelled	4 (8.0%)	↑
Average Duration (raw / nonzero-only)	16.4 min / 21.3 min	↑ (vs <5min on 09-26..09-29)
Orphaned-branch Escalations	0	→
True-agentic success rate	4/6 = 66.7% (100% excl. 2 merge-triggered cancellations)	↓ (breaks 2-day 100% streak)

Success Factors ✅

1. "Code scanning AI findings" gate: 5/5 = 100% success across 3 PRs (Add standalone safe-output-backed ledger configuration #64354, Support AWF task-level model routing in the Copilot engine #64403, Add replay projections to standalone ledgers #64420) — remains a reliably clean signal.
2. "Running Copilot cloud agent": 2/2 = 100% success (support-awf-routing, add-replay-projections-to-ledger branches).
3. Post-merge review-bot cohort on the dominant branch: once copilot/add-replay-projections-to-ledger reached its main review burst (05:48–06:04Z), 8 of 10 reviewer/quality bots passed (AI Moderator, Content Moderation, Ponytail Reviewer, Test Quality Sentinel, Matt Pocock Skills Reviewer, Running Copilot Code Review, Design Decision Gate, PR Data Prefetch) — only Impeccable Skills Reviewer and PR Code Quality Reviewer failed.
4. True-agentic completions net of merge noise: excluding the 2 cancellations explained below by their own PR's merge, "Addressing comment on PR" + "Running Copilot cloud agent" convert 4/4 = 100%.

Failure Signals ⚠️

1. copilot/support-awf-routing cluster failures: Agentic Commands failed twice (04:39, 04:44) and Content Moderation + AI Moderator failed once (04:39), all within a single ~5min window on this branch — 4 genuine (non-cascade, non-merge) failures, the largest concentrated failure cluster of the day.
2. Reviewer-bot misses on the dominant branch: Impeccable Skills Reviewer and PR Code Quality Reviewer both failed on copilot/add-replay-projections-to-ledger (06:03–06:26Z) — 2/10 of that burst's reviewer cohort.
3. copilot/fix-gh-proxy-token-issue: 0/2 success (100% non-success) — smallest, weakest branch today.
4. Squad / Agentic Commands / Doc Build-Deploy standing gates: Squad 0/2 (both action_required), Doc Build-Deploy 1/2 (one action_required) — the recurring "never auto-resolves without a human/merge trigger" pattern continues.

Prompt Quality Analysis 📝

Per-Prompt Breakdown

No natural-language task prompts are visible in this dataset — sessions-list.json provides only workflow-run metadata (name, branch, status, timestamps), not the underlying issue/PR body text that seeded each Copilot session. A genuine prompt-quality analysis would require either the conversation logs (currently empty, see caveat above) or a separate fetch of the source issue/PR descriptions. Flagged as a standing data gap rather than fabricated.

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 20 open PRs (0%)
• Historical Baseline: 0.0% orphaned rate (30-day mean over 37 recorded prior days)
• Status: NORMAL — 38th consecutive healthy day

Escalation Candidate Details

Escalation Candidates

✅ No orphaned branches exceed the escalation threshold today. Only 1 in-progress workflow run repo-wide in the trailing 6 hours at snapshot time; all 19 non-dependabot open PRs are either Copilot-assigned or human+Copilot co-assigned (the 1 fully-human PR, #56568, carries 0 active gates, far below the 5-gate floor).

CI Waste Estimate

• Orphaned gate-hours today: 0 — no recoverable capacity to report.

Notable Observations and Known Gaps

Loop Detection and Session Diagnostics

Loop Detection

Not measurable this run — loop/retry detection requires turn-by-turn conversation data, which was unavailable (see caveat above).

Cascade and Cancellation Analysis (verified via gh api pulls/commits)

• 2 merge-triggered cancellations, smallest tier: PR Use GitHub App token for gh-proxy #64334 merged 05:03:21Z → "Addressing comment on PR Use GitHub App token for gh-proxy #64334" cancelled 24s later (05:03:45Z); PR Add standalone safe-output-backed ledger configuration #64354 merged 05:03:44Z → "Addressing comment on PR Add standalone safe-output-backed ledger configuration #64354" cancelled 24s later (05:04:08Z). Both are the standing "own-PR merge invalidates its in-flight workflow" pattern, not genuine failures.
• "merge → Squad Implement Worker +~7s" sub-signature recurred again: fired at 05:03:28Z (7s after Use GitHub App token for gh-proxy #64334's merge) and 05:03:51Z (7s after Add standalone safe-output-backed ledger configuration #64354's merge) — consistent with the recurring signature first named on 09-26/09-27.
• New candidate pattern — push-supersede cancellation: on copilot/add-replay-projections-to-ledger (PR Add replay projections to standalone ledgers #64420, still open), CJS (started 05:48:23Z) and CGO (started 06:03:43Z) were both cancelled ~4–18min into their run while the branch received 4 pushes in a ~95min window (05:37:42Z, 06:03:51Z, 07:03:51Z, 07:11:27Z). This looks like ordinary GitHub Actions concurrency-group supersession by a newer push rather than a merge/close-triggered cascade — distinct mechanism from merge_invalidation_cascade/pr_terminal_event_cascade; needs a repeat observation before naming it a confirmed pattern.
• provenance_inversion: 23/27 successes (85.2%) bot-driven vs 4/27 (14.8%) true-agentic — upper edge of, but still inside, the historical 72–86% band.
• burst_vs_isolated_success_gap near parity again: isolated 54.5% (6/11) vs burst-fired 53.8% (21/39), ~1.01x — a 3rd near-parity/inverted reading (joins 09-13's 1.05x and 09-18's inversion), continuing to erode confidence in the "3-8x gap" as a stable law.

Tool Usage

• Most-used metadata "tools" (workflow triggers): Addressing comment on PR (4), Code scanning AI findings (5, 100% success), Running Copilot cloud agent (2, 100% success) as the true-agentic layer; Agentic Commands, CGO, CWI, CJS, Squad/Squad Implement Worker, Doc Build - Deploy as the recurring CI-gate layer.
• Tool/action-level success rates from conversation logs (which tools the agent itself called, retry behavior) are unavailable this run.

Context Issues

Not measurable without conversation logs.

Experimental Analysis

Standard analysis only — no experimental strategy this run (roll=36, threshold <30).

Actionable Recommendations

For Users Writing Task Descriptions

1. Attach the source issue/PR link in any manual review of this report: since sessions-list.json carries no prompt text, anyone auditing a specific session should pull the linked issue/PR body directly from GitHub rather than relying on this report for prompt-quality signal.

For System Improvements

1. Fix the conversation-log fetch pipeline: 38+ consecutive days with 0 transcript files means the entire turn-by-turn/tool-usage/loop-detection half of this workflow's mandate has been unfulfilled since before the earliest recorded history entry. Potential impact: High — this is now the single largest standing gap in the analysis.
2. Add issue/PR body text to the pre-fetch step: even without conversation logs, joining sessions-list.json against the source issue/PR description would unlock real prompt-quality analysis. Potential impact: Medium.

For Tool Development

1. Distinguish push-supersede cancellations from merge/close cascades in the pre-fetch metadata: today's CJS/CGO cancellations on PR Add replay projections to standalone ledgers #64420 required a manual gh api commits cross-check to rule out a merge cascade. Frequency of need: recurs most days with a heavily-pushed branch. Use case: an automated "cancelled_reason" field (superseded-by-run-id vs merge vs close) would remove this manual verification step.

Historical Trends and Statistical Summary

Trends Over Time

• Completion rate trend: sharp rebound (+44pts) off yesterday's 10.0% low, now 3rd-highest of the 38-day record. The series remains a saw-tooth with no sustained regime shift.
• Average duration trend: today's 16.4 min raw mean is well above the 09-26..09-29 run of sub-5-min days, driven by a genuinely spread-out distribution (163s–4385s) rather than a single multi-hour artifact — a real, not artifactual, step up in execution time.
• Orphan rate: flat 0.0% for 38 consecutive recorded days — the most stable metric tracked.

Statistical Summary

Total Sessions Analyzed:     50
Successful Completions:      27 (54.0%)
Failed Sessions:             6 (12.0%)
Action Required (gated):     11 (22.0%)
Cancelled:                    4 (8.0%)
In-Progress (at snapshot):   2 (4.0%)

Average Session Duration (raw, incl. 0-duration stubs):  16.4 min
Average Session Duration (nonzero only, n=37):           21.3 min
Median Session Duration (nonzero only, n=37):            18.0 min
Longest Session:             73.1 min (CGO, copilot/implement-new-ledger-design, success)
Shortest Nonzero Session:    2.7 min (PR Data Prefetch, success)

Loop Detection:              not measurable (conversation logs empty)
Context Issues:              not measurable (conversation logs empty)
Merge/PR-terminal cascades:  2 independent events (PR #64334, PR #64354), 1 run invalidated each

Next Steps

• Prioritize fixing the conversation-log fetch step — 38+ days of metadata-only analysis is the top standing risk to this workflow's value
• Consider joining issue/PR body text into the pre-fetch to unlock real prompt-quality analysis
• Watch copilot/add-replay-projections-to-ledger's push-supersede cancellations for a repeat occurrence before naming a new pattern
• Schedule follow-up analysis tomorrow (2026-10-01)

---

Analysis generated automatically on 2026-09-30
Run ID: §36681130264
Workflow: Copilot Session Insights

References:

• §36681130264 — this analysis run
• PR #64334 — merge-triggered cancellation example
• PR #64420 — dominant branch, push-supersede cancellations

Generated by 📊 Copilot Session Insights · claude · agent · 276.7 AIC · ⌖ 6.1 AIC · ⊞ 6.1K · ◷

• expires on Sep 30, 2026, 11:36 PM UTC-08:00

[github-actions[bot]]

This discussion has been marked as outdated by Copilot Session Insights.

A newer discussion is available at Discussion #64718.