[prompt-analysis] Copilot PR Prompt Analysis - 2026-11-03

[github-actions[bot]]

🤖 Copilot PR Prompt Pattern Analysis - 2026-11-03

Summary

Analysis Period: Last 30 days
Total PRs: 564 | Merged: 479 (84.9%) | Closed: 81 (14.4%) | Open: 4 (0.7%)

No PRs had empty bodies. Merge rate among completed PRs: 85.5%.

Prompt Categories and Success Rates

Categorized by title keywords (first match wins; Other = no match).

Category	Total	Merged	Success Rate (completed)
Bug Fix	69	61	89.7%
Feature Addition	85	71	84.5%
Refactoring	11	10	90.9%
Documentation	23	19	86.4%
Testing	4	3	75.0%
Other	372	315	84.9%

Prompt Analysis

✅ Successful Prompt Patterns

• Average body length: 168 words (merged)
• 80.6% of merged PRs link an issue (Fixes/Closes #N); 22.5% reference specific files
• Action verbs: Align, Validate, Publish, Fix, Add

1. PR Align protected-file fallback issues with PR expiration #74542: Align protected-file fallback issues with PR expiration → Merged
2. PR Validate Pi sub-agent invocation parameters #74370: Validate Pi sub-agent invocation parameters → Merged
3. PR Publish a Windows 386 extension binary #74369: Publish a Windows 386 extension binary → Merged

❌ Unsuccessful Prompt Patterns

• Average body length: 143 words (closed)
• 74% of closed PRs link an issue; 12% reference specific files
• Themes: triage/investigate/assess tasks, [WIP]/[Experimental] PRs, multi-concern engine/firewall changes

1. PR Triage zero-finding security scan #74356: Triage zero-finding security scan → Closed
2. PR WIP: Add on.decision semantic event qualification gate #73299: WIP: Add on.decision semantic event qualification gate → Closed
3. PR [WIP] Fix failing GitHub Actions job 'agent' #69046: [WIP] Fix failing GitHub Actions job 'agent' → Closed
4. PR Triage unsubstantiated red-team findings #71621: Triage unsubstantiated red-team findings → Closed

Key Insights

• File references help: PRs naming concrete files merge ~92% (108/118) vs ~85% overall.
• Investigation/triage prompts underperform: many closures have no concrete code deliverable.
• WIP/exploratory prompts rarely land.

Recommendations

1. DO: Reference specific files/functions and link the issue.
2. DO: Scope to one concern with a concrete deliverable.
3. AVOID: Open-ended investigation/triage prompts and bundling multiple concerns.

Historical Trends

Date	PRs	Merge Rate
2026-11-03	564	84.9%
2026-11-01	585	83.2%
2026-10-31	600	83.2%

Trend: Merge rate up ~1.7 points over recent days.

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Generated by Copilot PR Prompt Analysis (Run: 41714372942)

Generated by 🔍 Copilot PR Prompt Pattern Analysis · copilot · auto · ~18 AIC · ⌖ ~1 AIC · ⊞ 12.4K · ◷

• expires on Nov 4, 2026, 12:47 PM UTC-08:00

[github-actions[bot]]

This discussion has been marked as outdated by Copilot PR Prompt Pattern Analysis.

A newer discussion is available at Discussion #74965.