[copilot-agent-analysis] Daily Copilot Agent Analysis - 2026-10-20

[github-actions[bot]]

🤖 Copilot Agent PR Analysis - 2026-10-20

Analysis Period: window_start=2026-10-20T00:00:00Z → window_end=2026-10-21T00:00:00Z

During the window, Copilot agent created 7 PRs (agent_prs_total) and merged 10 PRs (agent_prs_merged, event-scoped — includes PRs created on prior days that merged today). The creation-cohort success rate is 100% (agent_success_rate, 7/7) with an average duration of ~3h38m and 1.4 human comments per PR. Success rate rose sharply from 64.3% to 100% versus the prior day, though the 10-18/10-19 baselines are a cold-start backfill after a 56-day history gap (2026-08-26 → 2026-10-18), and today's n=7 is small.

• All 7 PRs merged cleanly with 0 closures and 0 still open, but several (Record routing analytics in aw_session.jsonl: model.config, baseline estimate, upstream errors, harness identity #70672, Register Claude inline sub-agents and resolve Claude/Codex sub-agent models before engine startup #70671, audit: report model resolution startup failures from the unified session #70653, Fix stale Copilot workflow model pins exposed by fail-closed sub-agent resolution #70652) needed one or more maintainer-triggered "merge main" / CI-fix follow-up rounds before merge — review/CI friction rather than agent task failure.
• Historical trend data had a 56-day gap (last entry 2026-08-26); only 3 days (10-18 to 10-20) are now available after backfill, so multi-day trend confidence stays low until more days accumulate.

Task texts (PR body excerpts)

PR	Title	Task excerpt
#70672	Record routing analytics in aw_session.jsonl	This adds the remaining routing-analytics data to usage/aw_session.jsonl, which the CAO model-rout...
#70671	Register Claude inline sub-agents and resolve Claude/Codex sub-agent models before engine startup	Claude Code skipped every inline sub-agent gh-aw staged, because the generated agent file had no `na...
#70653	audit: report model resolution startup failures from the unified session	gh aw audit only diagnosed model-availability failures from Pi's agent-stdio.log message. It mis...
#70652	Fix stale Copilot workflow model pins exposed by fail-closed sub-agent resolution	On October 19, gpt-5-mini, gpt-5.4, gpt-5.4-mini, gpt-5.5 and grok-4.5 were removed from t...
#70595	Bump gh-aw-firewall to v0.28.70	Upgrade AWF from v0.28.62 to v0.28.70, incorporating eMudhra CA trust mitigation, missing creden...
#70581	Bump MCPG to v0.4.36	Upgrade the default MCP gateway from v0.4.35 to v0.4.36 with its verified multi-platform image diges...
#70528	Add model-based fuzzing for the Copilot SDK shell parser	Extend shell-parser coverage with generated programs and independent extraction and permission oracl...

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Generated by Copilot Agent Analysis (Run: 39652893464)

Generated by 📊 Copilot Agent PR Analysis · claude · agent · 121.2 AIC · ⌖ 0.777 AIC · ⊞ 6.8K · ◷

• expires on Oct 22, 2026, 10:37 AM UTC-08:00