From 9d1ac4cc4969dc82923ecbbc6fc80aae8a1d5b19 Mon Sep 17 00:00:00 2001
From: Michael Laccetti <michael@laccetti.com>
Date: Mon, 12 Oct 2026 16:08:50 -0400
Subject: [PATCH] fix: create harness settings dirs before link state files.

Fresh agy/claude installs had no antigravity-cli or settings parent when writing .muster-link.json.
---
 internal/link/agy_settings.go    | 6 +++---
 internal/link/claude_settings.go | 6 +++---
 internal/link/link_test.go       | 5 ++++-
 3 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/internal/link/agy_settings.go b/internal/link/agy_settings.go
index 8abbd75..b5547e4 100644
--- a/internal/link/agy_settings.go
+++ b/internal/link/agy_settings.go
@@ -39,6 +39,9 @@ func setAgyDefaultAgent(settingsPath, statePath string, dryRun bool) error {
 	if previous == orchestratorAgentName {
 		return nil
 	}
+	if err := os.MkdirAll(filepath.Dir(settingsPath), 0o755); err != nil {
+		return err
+	}
 	state := agyLinkState{PreviousAgent: previous}
 	stateBytes, err := json.MarshalIndent(state, "", "  ")
 	if err != nil {
@@ -53,9 +56,6 @@ func setAgyDefaultAgent(settingsPath, statePath string, dryRun bool) error {
 		return err
 	}
 	out = append(out, '\n')
-	if err := os.MkdirAll(filepath.Dir(settingsPath), 0o755); err != nil {
-		return err
-	}
 	return os.WriteFile(settingsPath, out, 0o644)
 }
 
diff --git a/internal/link/claude_settings.go b/internal/link/claude_settings.go
index ab8355e..792ebfd 100644
--- a/internal/link/claude_settings.go
+++ b/internal/link/claude_settings.go
@@ -85,6 +85,9 @@ func setClaudeDefaultAgent(settingsPath, statePath, agentName string) error {
 	if previous == agentName {
 		return nil
 	}
+	if err := os.MkdirAll(filepath.Dir(settingsPath), 0o755); err != nil {
+		return err
+	}
 	state := claudeLinkState{PreviousAgent: previous}
 	stateBytes, err := json.MarshalIndent(state, "", "  ")
 	if err != nil {
@@ -99,9 +102,6 @@ func setClaudeDefaultAgent(settingsPath, statePath, agentName string) error {
 		return err
 	}
 	out = append(out, '\n')
-	if err := os.MkdirAll(filepath.Dir(settingsPath), 0o755); err != nil {
-		return err
-	}
 	return os.WriteFile(settingsPath, out, 0o644)
 }
 
diff --git a/internal/link/link_test.go b/internal/link/link_test.go
index 8e767bc..ae60481 100644
--- a/internal/link/link_test.go
+++ b/internal/link/link_test.go
@@ -68,7 +68,6 @@ func TestLinkGlobalCodexCursorAgy(t *testing.T) {
 	t.Setenv("HOME", home)
 	t.Setenv("MUSTER_HOME", filepath.Join(home, "muster"))
 	t.Setenv("CODEX_HOME", filepath.Join(home, ".codex"))
-	_ = os.MkdirAll(filepath.Join(home, ".gemini", "antigravity-cli"), 0o755)
 
 	kitDir, err := kit.Install()
 	if err != nil {
@@ -102,6 +101,10 @@ func TestLinkGlobalCodexCursorAgy(t *testing.T) {
 	if _, err := os.Stat(agyAgent); err != nil {
 		t.Fatal(err)
 	}
+	agySettings := filepath.Join(home, ".gemini", "antigravity-cli", "settings.json")
+	if _, err := os.Stat(agySettings); err != nil {
+		t.Fatal(err)
+	}
 }
 
 func TestLinkAllWithoutGlobalPaths(t *testing.T) {