[workflow-analysis] Weekly Workflow Analysis Report - Week of October 21-27, 2025

[github-actions[bot]]

Weekly Workflow Analysis Report

Analysis Period: October 21-27, 2025
Report Generated: October 27, 2025
Workflows Analyzed: 56 active workflows
Data Points: 32+ workflow runs across multiple engines

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Executive Summary

This report analyzes GitHub Actions workflow runs from the past week, focusing on failure patterns, performance bottlenecks, resource usage, and reliability metrics across Claude, Copilot, and Codex engines.

Key Findings

• Overall Success Rate: 84.4% (27/32 successful runs analyzed)
• Total Cost (AI tokens): $6.44 across Claude workflows
• Critical Issues: 6 workflows with consistent failures
• Most Reliable: Smoke test workflows (Claude/Codex) with 100% success rate
• Highest Cost: Lockfile Stats workflow ($3.36 over 3 runs)

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1. Failure Patterns & Common Errors

Critical Failures (Require Immediate Attention)

🔴 Duplicate Code Detector (100% Failure Rate)

• Impact: 6/6 runs failed in the past week
• Engine: Codex
• Root Cause: Project initialization failure
• Error Pattern: Project '/workspace' not found: Not a valid project name or directory. Existing project names: []
• Recommended Action: Fix Serena/Codex project configuration to properly initialize workspace

🟡 Daily News (22% Failure Rate - 2/9 runs failed)

• Engine: Copilot
• Common Errors:
  • MCP server failures: Failed to start MCP client for remote server tavily: TypeError: fetch failed (5 occurrences in run #18835462639)
  • Permission denied errors: 32 instances in recent runs
  • Cannot read properties of undefined (reading 'text') errors (multiple runs)
• Recommended Actions:
  1. Investigate Tavily MCP server connectivity
  2. Review permission scopes for GitHub token
  3. Add defensive null checks in text property access

🟡 Smoke Copilot (14% Failure Rate - 1/7 runs failed)

• Engine: Copilot
• Error: Network-related failures on 2025-10-26
• Pattern: ICMPv6 network unreachability, custom agent loading failures

Recurring Error Patterns

Pattern 1: Token Response Overflow

Frequency: High (appears in Claude smoke tests)
Issue: GitHub MCP tool responses exceed 25,000 token limit

• list_pull_requests responses: 37K-157K tokens
• Affects: 7/7 smoke-claude runs
• Impact: Forces pagination workarounds, increases latency
• Recommendation: Implement default pagination with smaller page sizes for MCP tools

Pattern 2: API Permission Errors

Frequency: Medium (6 occurrences in smoke-claude)
Issue: 403 Resource not accessible by integration when calling get_me

• Affects GitHub user profile lookups
• Recommendation: Update GITHUB_TOKEN permissions or remove unnecessary get_me calls

Pattern 3: Codex Stream Disconnections

Frequency: Low (2 occurrences)
Issue: codex_core::codex: stream disconnected - retrying turn

• Self-healing (automatic retries work)
• Monitor for frequency increase

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2. Performance Analysis

Duration Metrics by Workflow Type

Workflow	Engine	Avg Duration	Min	Max	Runs
Duplicate Code Detector	Codex	10.5 min	7.6m	17.0m	6
Lockfile Stats	Claude	8.6 min	6.6m	11.7m	3
Smoke Claude	Claude	3.3 min	2.5m	5.9m	7
Smoke Codex	Codex	3.5 min	2.5m	4.7m	7
Smoke Copilot	Copilot	2.6 min	1.0m	3.2m	7
Daily News	Copilot	4.3 min	0.9m	6.1m	9

Performance Insights

1. Fastest Engine: Copilot (avg 2.6-4.3 min for regular workflows)
2. Slowest Workflow: Duplicate Code Detector (10.5 min avg) - but 100% failing, so duration includes error investigation
3. Most Consistent: Smoke tests maintain tight duration ranges (±1.5 min)

Bottlenecks Identified

High Token Usage in Claude Workflows

• Lockfile Stats: 663K-934K tokens per run

  • Average: 779K tokens/run
  • Cost: $1.12/run average
  • Concern: One run (#18812286033) used 11.7 minutes and cost $1.78

• Smoke Claude: 272K-570K tokens per run

  • Average: 367K tokens/run
  • Cost: $0.44/run average

Recommendation: Review prompt engineering to reduce token consumption, especially for lockfile analysis tasks

Tool Call Overhead

• Lockfile Stats: 70+ tool calls per run
  • Excessive bash commands (30+ per run)
  • Multiple redundant file reads
  • Optimization: Cache file contents, batch operations

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3. Resource Usage & Costs

Token Usage Summary (Claude Workflows Only)

Workflow	Total Runs	Total Tokens	Total Cost	Avg Cost/Run
Smoke Claude	7	2,567,263	$3.09	$0.44
Lockfile Stats	3	2,337,432	$3.36	$1.12
TOTAL	10	4,904,695	$6.44	$0.64

Cost Projections

Weekly Costs (based on current schedule):

• Smoke Claude: 28 runs/week × $0.44 = $12.32/week
• Lockfile Stats: 7 runs/week × $1.12 = $7.84/week
• Estimated Weekly Total: ~$20-25 (Claude workflows only)

Monthly Projection: ~$80-100 for Claude-powered workflows

Cost Optimization Opportunities

1. Reduce Smoke Test Frequency: Currently 4x/day (every 6 hours)

   • Consider 2x/day or business hours only
   • Potential savings: 50% ($6/week)

2. Optimize Lockfile Stats Analysis:

   • Implement incremental analysis (only changed files)
   • Current: Analyzes 58+ files every run
   • Potential savings: 30-40% token reduction

3. Enable Caching:

   • Cache GitHub API responses (PR lists, issues)
   • Could reduce token usage by 15-20%

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4. Reliability Metrics

Success Rates by Engine

Engine	Total Runs	Successful	Failed	Success Rate
Claude	10	10	0	100% ✅
Codex	13	7	6	54% ⚠️
Copilot	16	13	3	81% ⚠️
Overall	39	30	9	77%

Reliability by Workflow Category

Category	Success Rate	Notes
Smoke Tests	93% (13/14)	Most reliable; Copilot had 1 failure
Daily Scheduled	78% (7/9)	Daily News has issues
Analysis Tools	60% (3/5)	Duplicate Code Detector failing

Error Frequency

• Total Errors Logged: 270+ error entries
• Total Warnings: 109+ warning entries
• High Error Workflows:
  • Daily News: 103 errors (run #18775038124 alone had 62)
  • Lockfile Stats: 87 errors (mostly logged state, not failures)
  • Smoke Claude: 54 errors (mostly MCP token limits)

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5. Tool Usage Patterns

Most Used Tools (Across All Workflows)

1. GitHub MCP Tools: 382+ calls across Copilot workflows
2. TodoWrite: 50 calls (primarily Claude workflows)
3. Safe Outputs: 43 calls (creating issues/discussions)
4. Serena Tools: 240+ calls (Codex workflows, but mostly failing)

Tool Performance Issues

1. GitHub list_pull_requests: Consistently exceeds token limits
2. Serena activate_project: Failing to initialize workspace
3. Tavily MCP: Connection failures affecting Daily News

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6. Actionable Recommendations

Immediate Actions (This Week)

1. Fix Duplicate Code Detector ⚠️ URGENT

   • Debug Serena project initialization
   • Verify workspace configuration
   • Test with minimal workflow first

2. Stabilize Daily News MCP Connectivity

   • Investigate Tavily server reliability
   • Add retry logic for MCP connections
   • Consider alternative news sources as fallback

3. Address Token Limit Issues

   • Reduce default page size for GitHub MCP tools to 10-20 items
   • Update all workflows using list_pull_requests

Short-Term Improvements (Next 2 Weeks)

4. Optimize Lockfile Stats Performance

   • Implement incremental analysis
   • Cache unchanged files
   • Target: Reduce runtime from 8.6 min to <5 min

5. Review Permission Scopes

   • Audit GITHUB_TOKEN permissions
   • Remove unnecessary API calls (e.g., get_me)
   • Document required scopes per workflow

6. Add Error Monitoring

   • Set up alerts for >2 consecutive failures
   • Track error pattern trends
   • Monthly reliability reports

Long-Term Optimizations (Next Month)

7. Cost Management

   • Implement schedule optimization for smoke tests
   • Add token budgets per workflow
   • Review necessity of all scheduled workflows

8. Performance Baseline

   • Establish SLOs for workflow duration
   • Track p95/p99 latency
   • Performance regression testing

9. Enhanced Observability

   • Structured logging for all workflows
   • Centralized error dashboard
   • Tool usage analytics

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7. Positive Observations

✅ Claude Engine: 100% reliability across all workflows
✅ Smoke Tests: Effective at catching issues early
✅ Self-Healing: Codex stream retries work automatically
✅ Safe Outputs: Working reliably across all engines
✅ Compilation Rate: 91% of workflows properly compiled (51/56)

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Appendix: Workflow Health Summary

Workflow	Status	Engine	Last Success	Action Needed
Smoke Claude	✅ Healthy	Claude	2025-10-27	None
Smoke Codex	✅ Healthy	Codex	2025-10-27	None
Smoke Copilot	⚠️ Mostly Healthy	Copilot	2025-10-27	Monitor network issues
Daily News	⚠️ Needs Attention	Copilot	2025-10-27	Fix MCP connectivity
Lockfile Stats	✅ Healthy	Claude	2025-10-27	Optimize performance
Duplicate Code Detector	🔴 Failing	Codex	Never (past week)	URGENT: Fix project init

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Next Review: November 3, 2025
Report Author: Weekly Workflow Analyzer Agent
Data Source: GitHub Actions workflow logs via agentic-workflows MCP

AI generated by Weekly Workflow Analysis