Enhance Dev Hawk with deep PR analysis and automatic agent task creation

[Copilot]

Dev Hawk now performs root cause analysis by correlating workflow failures with PR code changes, then automatically creates agent tasks for Copilot to fix identified issues.

Changes

• Deep research workflow: 4-step systematic analysis

  1. Extract audit data (errors, stack traces, job failures, MCP metrics)
  2. Analyze PR changes (diffs, modified files, code deltas)
  3. Correlate errors to specific file/line changes
  4. Synthesize root cause from combined signals

• Agent task creation: Creates gh agent-task with structured problem statement when root cause is actionable

  • Template includes: failure context, root cause analysis, affected files, expected fix, verification checklist
  • Added bash tool access for gh agent-task create *
  • Only triggers when all criteria met (clear root cause, code issue, actionable fix, specific files identified)

• Enhanced reporting: Three comment templates

  • Success: simple confirmation
  • Failure with root cause: detailed analysis + agent task link
  • Failure without root cause: honest assessment with investigation guidance

• Increased timeout: 10→15 minutes for deeper analysis

Example Task Creation

When correlation succeeds:

gh agent-task create -F - <<EOF
# Fix syntax error in validation.go

## Root Cause
Line 127 in pkg/workflow/validation.go introduced unclosed string literal
causing compilation failure in all Go files.

## Files to Fix
- pkg/workflow/validation.go:127 - Close string literal

## Verification
- [ ] Code compiles successfully
- [ ] Tests pass
EOF

Original prompt

Update dev hawk prompting to do a deep research into the pull request changes and the workflow run audit data to find a root cause of the problem.

If found, respond with an agentic task description in the comment for copilot.

Custom agent used: create-agentic-workflow
Design agentic workflows using GitHub Agentic Workflows (gh-aw) extension with interactive guidance on triggers, tools, and security best practices.

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