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feat(polecat): add AGENTS.md fallback copy from mayor/rig

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When creating or repairing worktrees, if AGENTS.md doesn't exist after
checkout (e.g., stale fetch or local-only file), copy it from mayor/rig.
This ensures polecats always have the critical "land the plane" instructions.

Applied to both AddWithOptions and RepairWorktreeWithOptions for
consistency. Errors are non-fatal (warning only).

Fixes: gt-sq1.2

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
dave
2026-01-11 15:26:10 -08:00
committed by Steve Yegge
parent eae08ee509
commit 9835e13fee
1 changed files with 24 additions and 0 deletions
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24
internal/polecat/manager.go
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@@ -282,6 +282,18 @@ func (m *Manager) AddWithOptions(name string, opts AddOptions) (*Polecat, error)
return nil, fmt.Errorf("creating worktree from %s: %w", startPoint, err)
}
// Ensure AGENTS.md exists - critical for polecats to "land the plane"
// Fall back to copy from mayor/rig if not in git (e.g., stale fetch, local-only file)
agentsMDPath := filepath.Join(clonePath, "AGENTS.md")
if _, err := os.Stat(agentsMDPath); os.IsNotExist(err) {
srcPath := filepath.Join(m.rig.Path, "mayor", "rig", "AGENTS.md")
if srcData, readErr := os.ReadFile(srcPath); readErr == nil {
if writeErr := os.WriteFile(agentsMDPath, srcData, 0644); writeErr != nil {
fmt.Printf("Warning: could not copy AGENTS.md: %v\n", writeErr)
}
}
}
// NOTE: We intentionally do NOT write to CLAUDE.md here.
// Gas Town context is injected ephemerally via SessionStart hook (gt prime).
// Writing to CLAUDE.md would overwrite project instructions and could leak
@@ -554,6 +566,18 @@ func (m *Manager) RepairWorktreeWithOptions(name string, force bool, opts AddOpt
return nil, fmt.Errorf("creating fresh worktree from %s: %w", startPoint, err)
}
// Ensure AGENTS.md exists - critical for polecats to "land the plane"
// Fall back to copy from mayor/rig if not in git (e.g., stale fetch, local-only file)
agentsMDPath := filepath.Join(newClonePath, "AGENTS.md")
if _, err := os.Stat(agentsMDPath); os.IsNotExist(err) {
srcPath := filepath.Join(m.rig.Path, "mayor", "rig", "AGENTS.md")
if srcData, readErr := os.ReadFile(srcPath); readErr == nil {
if writeErr := os.WriteFile(agentsMDPath, srcData, 0644); writeErr != nil {
fmt.Printf("Warning: could not copy AGENTS.md: %v\n", writeErr)
}
}
}
// NOTE: We intentionally do NOT write to CLAUDE.md here.
// Gas Town context is injected ephemerally via SessionStart hook (gt prime).