[prompt-analysis] Copilot PR Prompt Analysis - 2026-11-01

[github-actions[bot]]

🤖 Copilot PR Prompt Pattern Analysis - 2026-11-01

Summary

Analysis Period: Last 30 days
Total PRs: 585 | Merged: 487 (83.2%) | Closed: 85 (14.5%) | Open: 13 (2.2%)
Empty bodies: 0

Prompt Categories and Success Rates

Success rate = merged / (merged + closed). Keyword-based categorization of title + first 300 chars of body.

Category	Total	Merged	Success Rate
Bug Fix	117	98	84%
Feature Addition	133	109	84%
Refactoring	25	17	68%
Documentation	45	39	91%
Testing	26	23	88%
Other	239	201	86%

Prompt Analysis

✅ Successful Prompt Patterns

• Average body length (merged): ~159 words
• Documentation and testing prompts, which have a narrow scope, merge most often.

Examples: #73816 Share TLA+/TLC tooling across agentic workflows → Merged; #73556 audit: report failed continue-on-error evals → Merged; #73541 Track workflow engines in Dependabot manifests → Merged.

❌ Unsuccessful Prompt Patterns

• Average body length (closed): ~136 words
• Refactoring/"improve" prompts have the lowest success rate (68%).

Examples: #73536 Retry activation artifact downloads... → Closed; #73271 Add repo-done safe output... → Closed; #73256 Block Claude Code 2.1.313... → Closed.

Key Insights

• Scope matters: Narrow docs/test tasks merge at 88–91%; broad refactor/improve tasks merge at 68%.
• Length: Merged bodies are slightly longer (159 vs 136 words), which suggests more context helps, though the difference is modest.
• Overall: The merge rate is steady at about 83–84% over the last 4 days.

Recommendations

1. DO: Give concrete scope, with specific files and acceptance criteria.
2. DO: Include background context and expected behavior.
3. AVOID: Open-ended "improve/refactor" prompts. Split them into small, specific steps.

Historical Trends

Date	PRs	Success Rate (merged/total)
2026-11-01	585	83.2%
2026-10-31	600	83.2%
2026-10-30	595	82.4%
2026-10-29	612	82.2%

Trend: The merge rate is stable to slightly rising.

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Generated by Copilot PR Prompt Analysis (Run: 41347853494)

Generated by 🔍 Copilot PR Prompt Pattern Analysis · copilot · auto · ~14 AIC · ⌖ ~1 AIC · ⊞ 12.1K · ◷

• expires on Nov 2, 2026, 12:42 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This discussion has been marked as outdated by Copilot PR Prompt Pattern Analysis.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 #74226.