[prompt-clustering] Daily Copilot Agent Prompt Clustering Analysis - January 26, 2026

[github-actions[bot]]

Daily NLP-based clustering analysis of copilot agent task prompts to identify patterns, insights, and optimization opportunities.

Analysis Date: 2026-01-26
Total Tasks Analyzed: 999
Clusters Identified: 9
Overall Success Rate: 77.5%

---

Summary Statistics

• Total PRs: 999
• Merged: 774 (77.5%)
• Closed (not merged): 225
• Still Open: 0
• Avg Comments per PR: 1.5
• Avg Commits per PR: 3.6
• Avg Files Changed: 14.0

Task Type Distribution

The most common task types across all analyzed PRs:

• bug-fix: 990 (99.1%)
• configuration: 986 (98.7%)
• feature: 905 (90.6%)
• improvement: 821 (82.2%)
• documentation: 759 (76.0%)
• testing: 747 (74.8%)
• dependencies: 360 (36.0%)
• security: 200 (20.0%)
• refactoring: 196 (19.6%)

---

Detailed Cluster Analysis

Cluster 1: Testing & Coverage (21.8%)

• Size: 218 tasks
• Success Rate: 78.4% (171 merged, 47 closed)
• Top Keywords: workflow, all, tests, test, pkg, added, github, workflows
• Avg Comments: 1.9 | Avg Commits: 4.2 | Avg Files: 16.8

Example Tasks

• #2102 ✅: Add workflow status badges documentation page
• #2108 ✅: Remove js-yaml dependency from badge generator, use regex-based parsing
• #2109 ✅: Add semantic function refactoring workflow for Go code analysis

Cluster 2: Feature Implementation (20.7%)

• Size: 207 tasks
• Success Rate: 77.8% (161 merged, 46 closed)
• Top Keywords: workflow, all, tests, pkg, workflows, changes, test, new
• Avg Comments: 1.9 | Avg Commits: 3.9 | Avg Files: 15.8

Example Tasks

• #2097 ✅: Add minimal path format syntax reference to imports documentation
• #2103 ✅: Add smoke-outpost workflow for investigating failed smoke test runs
• #2104 ✅: Add edit tool to commit-changes-analyzer workflow

Cluster 3: Configuration & Setup (15.6%)

• Size: 156 tasks
• Success Rate: 82.1% (128 merged, 28 closed)
• Top Keywords: workflow, github, disable, workflows, changes, all, pkg, mcp
• Avg Comments: 1.6 | Avg Commits: 3.6 | Avg Files: 16.1

Example Tasks

• #2107 ✅: Update variable name to 'log' and modify instructions
• #2122 ✅: Update scout agentic workflow to use Claude engine
• #2147 ✅: Add dictation prompt generator agentic workflow

Cluster 4: Bug Fixes & Error Resolution (13.6%)

• Size: 136 tasks
• Success Rate: 74.3% (101 merged, 35 closed)
• Top Keywords: workflow, all, tests, github, error, test, workflows, pkg
• Avg Comments: 1.5 | Avg Commits: 3.5 | Avg Files: 13.7

Example Tasks

• #2099 ✅: Add directory creation for copilot engine --add-dir paths
• #2100 ✅: Spread scheduled agentic workflows across 24 hours
• #2127 ✅: Fix Smoke OpenCode workflow failure

Cluster 5: Security & Vulnerability Fixes (9.1%)

• Size: 91 tasks
• Success Rate: 74.7% (68 merged, 23 closed)
• Top Keywords: workflow, workflows, github, safe, all, changes, security, permissions
• Avg Comments: 1.2 | Avg Commits: 3.4 | Avg Files: 12.4

Example Tasks

• #2160 ✅: Add blog-auditor workflow
• #2167 ✅: Fix OpenCode MCP server integration
• #2320 ✅: Fix test expectation for safe outputs MCP server name

Cluster 6: Documentation & Comments (8.7%)

• Size: 87 tasks
• Success Rate: 83.9% (73 merged, 14 closed)
• Top Keywords: documentation, docs, disable, github, workflow, changes, command, workflows
• Avg Comments: 0.7 | Avg Commits: 3.1 | Avg Files: 9.6

Example Tasks

• #2112 ✅: Restore AI instructions in README.md wrapped in XML comments
• #2113 ✅: Move workflow status documentation page to top level
• #2118 ✅: Merge documentation unbloat style guidance

Cluster 7: Dependencies & Updates (5.8%)

• Size: 58 tasks
• Success Rate: 87.9% (51 merged, 7 closed) ⭐ Highest Success Rate
• Top Keywords: changes, workflow, version, package, github, npm, all, updated
• Avg Comments: 1.3 | Avg Commits: 3.1 | Avg Files: 9.6

Example Tasks

• #2216 ✅: Update cli-version-checker workflow
• #2244 ✅: Add getValidReactions function
• #2250 ✅: Add copy button for dictation instructions

Cluster 8: Other (3.9%)

• Size: 39 tasks
• Success Rate: 38.5% (15 merged, 24 closed) ⚠️ Lowest Success Rate
• Top Keywords: description, progress, thanks, asking, work, get, started, keep
• Avg Comments: 0.2 | Avg Commits: 1.7 | Avg Files: 2.3

Example Tasks

• #2384 ✅: Fix container pattern regex
• #2396 ✅: Move validation functions
• #2437 ✅: Clarify push_to_pull_request_branch parameter

Cluster 9: Refactoring & Code Quality (0.7%)

• Size: 7 tasks
• Success Rate: 85.7% (6 merged, 1 closed)
• Top Keywords: workflow, changes, file, github, cleanup, paths, read, claude
• Avg Comments: 0.9 | Avg Commits: 3.0 | Avg Files: 10.4

---

Success Rate Comparison

Cluster	Description	Tasks	Success Rate	Avg Commits	Avg Files
7	Dependencies & Updates	58	87.9% ⭐	3.1	9.6
9	Refactoring & Code Quality	7	85.7%	3.0	10.4
6	Documentation & Comments	87	83.9%	3.1	9.6
3	Configuration & Setup	156	82.1%	3.6	16.1
1	Testing & Coverage	218	78.4%	4.2	16.8
2	Feature Implementation	207	77.8%	3.9	15.8
5	Security & Vulnerability Fixes	91	74.7%	3.4	12.4
4	Bug Fixes & Error Resolution	136	74.3%	3.5	13.7
8	Other	39	38.5% ⚠️	1.7	2.3

---

Key Findings

1. Highest Success Rate: Dependencies & Updates (87.9%) - These well-defined, scoped tasks show excellent outcomes
2. Lowest Success Rate: "Other" cluster (38.5%) - Vague or unclear tasks struggle significantly
3. Most Common Tasks: Testing & Coverage (218 tasks, 21.8%) - Workflow and test-related work dominates
4. Overall Performance: 77.5% merge rate shows strong agent effectiveness across most task types
5. Complexity Indicators: Testing & Coverage tasks require most commits (4.2 avg) and files (16.8 avg)

Actionable Recommendations

Based on clustering analysis of 999 PRs:

1. Prioritize High-Success Task Types

Dependencies & Updates (87.9%), Documentation (83.9%), and Configuration (82.1%) show excellent success rates. These task types have:

• Clear, well-defined scope
• Specific acceptance criteria
• Fewer edge cases to handle

Action: Use successful examples from these clusters as templates for new prompts.

2. Improve Low-Success "Other" Cluster (38.5%)

Tasks in this cluster show:

• Vague or ambiguous prompts
• Significantly fewer commits (1.7 avg) and files (2.3 avg)
• Minimal interaction (0.2 comments avg)

Action: Provide more detailed prompts with:

• Explicit acceptance criteria
• Example expected outcomes
• Clear scope boundaries

3. Break Down Complex Testing Tasks

Testing & Coverage requires most iterations (4.2 commits, 1.9 comments):

• Tasks span many files (16.8 avg)
• Often involve multiple workflow changes
• Require more back-and-forth clarification

Action: Break large testing tasks into smaller, incremental subtasks.

4. Maintain Current Documentation Standards

Documentation tasks show 83.9% success with minimal interaction (0.7 comments):

• Well-scoped changes
• Clear location and format expectations
• Fewest files changed (9.6 avg)

Action: Continue using documentation patterns as model for other task types.

---

References:

• §21348290987

AI generated by Copilot Agent Prompt Clustering Analysis

• expires on Feb 2, 2026, 6:40 AM UTC

[github-actions[bot]]

This discussion was automatically closed because it expired on 2026-02-02T06:40:48.144Z.