[prompt-analysis] Copilot PR Prompt Analysis - 2026-10-24

[github-actions[bot]]

🤖 Copilot PR Prompt Pattern Analysis - 2026-10-24

Summary

Analysis Period: Last 30 days
Total PRs: 585 | Merged: 494 (84.4%) | Closed: 86 (14.7%) | Open: 5

Merge rate of completed PRs: 85.2%. No empty PR bodies.

Prompt Categories and Success Rates (by title keywords, completed PRs)

Category	Total	Merged	Success Rate
Bug Fix	68	59	88.1%
Feature Addition	88	71	81.6%
Refactoring	13	10	76.9%
Documentation	27	24	88.9%
Testing	19	16	84.2%
Other	370	314	85.6%

Prompt Analysis

✅ Merged

• Average prompt length: 168 words
• Examples: Add detail-level A/B campaign to commit-changes-analyzer #71666 Add detail-level A/B campaign to commit-changes-analyzer; Fix missing work-queue diagnostic guidance #71665 Fix missing work-queue diagnostic guidance; Strengthen ledger formal-spec coverage #71625 Strengthen ledger formal-spec coverage

❌ Closed

• Average prompt length: 194 words (longer than merged)
• Examples: Triage unsubstantiated red-team findings #71621 Triage unsubstantiated red-team findings; Surface startup log details in agent failure issues #71610 Surface startup log details in agent failure issues; Verify queued work item status #71467 Verify queued work item status

Key Insights

• Length: Closed PRs have ~15% longer prompts (194 vs 168 words); conciseness correlates with merging.
• Category: Bug fix and docs prompts merge most (~88%); refactoring and feature prompts lag (77–82%), though refactor sample is small (n=13).
• File references: PRs mentioning a file path merged 86% (87/101) vs 85% (407/479) without — little difference.

Recommendations

1. DO: Keep prompts narrowly scoped and concise, especially for bug fixes and docs.
2. DO: Split broad feature/refactor tasks into smaller, well-defined pieces.
3. AVOID: Long, multi-goal prompts and investigative/triage-style tasks without concrete deliverables.

Historical Trends

Date	PRs	Success Rate
2026-10-24	585	85.2%
2026-10-23	587	84.1%
2026-10-22	200	85.1%
2026-10-21	633	83.9%

Trend: Stable merge rate of ~84–85%.

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Generated by Copilot PR Prompt Analysis (Run: 40130876872)

Generated by 🔍 Copilot PR Prompt Pattern Analysis · copilot · auto · ~14 AIC · ⌖ ~1 AIC · ⊞ 11.6K · ◷

• expires on Oct 25, 2026, 12:45 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This discussion has been marked as outdated by Copilot PR Prompt Pattern Analysis.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 #71951.