chenhg5/cc-connect · warning

marshal Agy permission hook: %w

Error message

marshal Agy permission hook: %w

What it means

createAgyConfigOverlay marshals the bridge hook definition (a Go map) into JSON for embedding in hooks.json. json.Marshal on a map[string]any of plain values practically cannot fail, but if it does, this wrapped error is returned.

Source

Thrown at agent/antigravity/permission_bridge.go:151

	if err != nil {
		return "", fmt.Errorf("resolve cc-connect executable for Agy hook: %w", err)
	}
	bridgeHook, err := json.Marshal(map[string]any{
		"PreToolUse": []any{
			map[string]any{
				"matcher": "*",
				"hooks": []any{
					map[string]any{
						"type":    "command",
						"command": shellQuote(executable) + " _agy-permission-hook",
						"timeout": 86400,
					},
				},
			},
		},
	})
	if err != nil {
		return "", fmt.Errorf("marshal Agy permission hook: %w", err)
	}
	hooks[agyPermissionHookName] = bridgeHook

	data, err := json.MarshalIndent(hooks, "", "  ")
	if err != nil {
		return "", fmt.Errorf("marshal Agy hooks overlay: %w", err)
	}
	data = append(data, '\n')
	if err := os.WriteFile(filepath.Join(overlayConfigDir, "hooks.json"), data, 0o600); err != nil {
		return "", fmt.Errorf("write Agy hooks overlay: %w", err)
	}
	return overlayConfigRoot, nil
}

func mirrorDirectoryEntries(sourceDir, targetDir string, skip map[string]bool) error {
	entries, err := os.ReadDir(sourceDir)
	if os.IsNotExist(err) {
		return nil

View on GitHub (pinned to 4000b2338a)

Solutions

1. Rebuild cc-connect from a clean checkout to rule out modified sources or patched dependencies.
2. Check for any custom json.Marshaler types shadowing the hook structure in a local fork.
3. Report the wrapped underlying error upstream if it reproduces with an unmodified build.

if err := startAntigravitySession(); err != nil && strings.Contains(err.Error(), "marshal Agy permission hook") {
    // near-impossible with stock builds; treat as an internal bug and report
}

When it happens

Trigger: newAgyPermissionBridge → createAgyConfigOverlay when json.Marshal of the static bridge-hook structure fails — theoretically only via unusual runtime conditions (e.g. corrupted custom marshalers); in practice near-impossible with the fixed literal structure.

Common situations: Rarely seen in the field; would indicate a code-level bug or a custom JSON marshaler injected into the structure rather than a user configuration issue.

Understand the failure class

Background: json.Marshal / "failed to marshal" errors in Go: why "unsupported type" happens and how to fix it — this error's family across 22 libraries.

Related errors

• marshal Agy hooks overlay: %w
• parse existing Agy hooks %s: %w
• bridge: marshal reconstruct reply ctx: %w
• minimax tts: marshal request: %w
• listen for Agy permission hooks: %w

AI-assisted analysis of chenhg5/cc-connect@4000b2338a (2026-09-06). Data as JSON: /api/errors/b3c0121a946de2f5. Report an issue: GitHub.