cmd: set claude code env vars on launch (#14109)

Set ANTHROPIC_DEFAULT_OPUS_MODEL, ANTHROPIC_DEFAULT_SONNET_MODEL,
ANTHROPIC_DEFAULT_HAIKU_MODEL, and CLAUDE_CODE_SUBAGENT_MODEL when
launching Claude Code so all model tiers route through Ollama.

cmd/config/claude.go

@@ -58,14 +58,39 @@ func (c *Claude) Run(model string, args []string) error {
 	cmd.Stdin = os.Stdin
 	cmd.Stdout = os.Stdout
 	cmd.Stderr = os.Stderr
-	cmd.Env = append(os.Environ(),
+
+	env := append(os.Environ(),
 		"ANTHROPIC_BASE_URL="+envconfig.Host().String(),
 		"ANTHROPIC_API_KEY=",
 		"ANTHROPIC_AUTH_TOKEN=ollama",
 	)
+
+	env = append(env, c.modelEnvVars(model)...)
+
+	cmd.Env = env
 	return cmd.Run()
 }
 
+// modelEnvVars returns Claude Code env vars that route all model tiers through Ollama.
+func (c *Claude) modelEnvVars(model string) []string {
+	primary := model
+	fast := model
+	if cfg, err := loadIntegration("claude"); err == nil && cfg.Aliases != nil {
+		if p := cfg.Aliases["primary"]; p != "" {
+			primary = p
+		}
+		if f := cfg.Aliases["fast"]; f != "" {
+			fast = f
+		}
+	}
+	return []string{
+		"ANTHROPIC_DEFAULT_OPUS_MODEL=" + primary,
+		"ANTHROPIC_DEFAULT_SONNET_MODEL=" + primary,
+		"ANTHROPIC_DEFAULT_HAIKU_MODEL=" + fast,
+		"CLAUDE_CODE_SUBAGENT_MODEL=" + primary,
+	}
+}
+
 // ConfigureAliases sets up model aliases for Claude Code.
 // model: the model to use (if empty, user will be prompted to select)
 // aliases: existing alias configuration to preserve/update

cmd/config/claude_test.go

@@ -5,6 +5,7 @@ import (
 	"path/filepath"
 	"runtime"
 	"slices"
+	"strings"
 	"testing"
 )
 
@@ -103,3 +104,95 @@ func TestClaudeArgs(t *testing.T) {
 		})
 	}
 }
+
+func TestClaudeModelEnvVars(t *testing.T) {
+	c := &Claude{}
+
+	envMap := func(envs []string) map[string]string {
+		m := make(map[string]string)
+		for _, e := range envs {
+			k, v, _ := strings.Cut(e, "=")
+			m[k] = v
+		}
+		return m
+	}
+
+	t.Run("falls back to model param when no aliases saved", func(t *testing.T) {
+		tmpDir := t.TempDir()
+		setTestHome(t, tmpDir)
+
+		got := envMap(c.modelEnvVars("llama3.2"))
+		if got["ANTHROPIC_DEFAULT_OPUS_MODEL"] != "llama3.2" {
+			t.Errorf("OPUS = %q, want llama3.2", got["ANTHROPIC_DEFAULT_OPUS_MODEL"])
+		}
+		if got["ANTHROPIC_DEFAULT_SONNET_MODEL"] != "llama3.2" {
+			t.Errorf("SONNET = %q, want llama3.2", got["ANTHROPIC_DEFAULT_SONNET_MODEL"])
+		}
+		if got["ANTHROPIC_DEFAULT_HAIKU_MODEL"] != "llama3.2" {
+			t.Errorf("HAIKU = %q, want llama3.2", got["ANTHROPIC_DEFAULT_HAIKU_MODEL"])
+		}
+		if got["CLAUDE_CODE_SUBAGENT_MODEL"] != "llama3.2" {
+			t.Errorf("SUBAGENT = %q, want llama3.2", got["CLAUDE_CODE_SUBAGENT_MODEL"])
+		}
+	})
+
+	t.Run("uses primary alias for opus sonnet and subagent", func(t *testing.T) {
+		tmpDir := t.TempDir()
+		setTestHome(t, tmpDir)
+
+		saveIntegration("claude", []string{"qwen3:8b"})
+		saveAliases("claude", map[string]string{"primary": "qwen3:8b"})
+
+		got := envMap(c.modelEnvVars("qwen3:8b"))
+		if got["ANTHROPIC_DEFAULT_OPUS_MODEL"] != "qwen3:8b" {
+			t.Errorf("OPUS = %q, want qwen3:8b", got["ANTHROPIC_DEFAULT_OPUS_MODEL"])
+		}
+		if got["ANTHROPIC_DEFAULT_SONNET_MODEL"] != "qwen3:8b" {
+			t.Errorf("SONNET = %q, want qwen3:8b", got["ANTHROPIC_DEFAULT_SONNET_MODEL"])
+		}
+		if got["ANTHROPIC_DEFAULT_HAIKU_MODEL"] != "qwen3:8b" {
+			t.Errorf("HAIKU = %q, want qwen3:8b (no fast alias)", got["ANTHROPIC_DEFAULT_HAIKU_MODEL"])
+		}
+		if got["CLAUDE_CODE_SUBAGENT_MODEL"] != "qwen3:8b" {
+			t.Errorf("SUBAGENT = %q, want qwen3:8b", got["CLAUDE_CODE_SUBAGENT_MODEL"])
+		}
+	})
+
+	t.Run("uses fast alias for haiku", func(t *testing.T) {
+		tmpDir := t.TempDir()
+		setTestHome(t, tmpDir)
+
+		saveIntegration("claude", []string{"llama3.2:70b"})
+		saveAliases("claude", map[string]string{
+			"primary": "llama3.2:70b",
+			"fast":    "llama3.2:8b",
+		})
+
+		got := envMap(c.modelEnvVars("llama3.2:70b"))
+		if got["ANTHROPIC_DEFAULT_OPUS_MODEL"] != "llama3.2:70b" {
+			t.Errorf("OPUS = %q, want llama3.2:70b", got["ANTHROPIC_DEFAULT_OPUS_MODEL"])
+		}
+		if got["ANTHROPIC_DEFAULT_SONNET_MODEL"] != "llama3.2:70b" {
+			t.Errorf("SONNET = %q, want llama3.2:70b", got["ANTHROPIC_DEFAULT_SONNET_MODEL"])
+		}
+		if got["ANTHROPIC_DEFAULT_HAIKU_MODEL"] != "llama3.2:8b" {
+			t.Errorf("HAIKU = %q, want llama3.2:8b", got["ANTHROPIC_DEFAULT_HAIKU_MODEL"])
+		}
+		if got["CLAUDE_CODE_SUBAGENT_MODEL"] != "llama3.2:70b" {
+			t.Errorf("SUBAGENT = %q, want llama3.2:70b", got["CLAUDE_CODE_SUBAGENT_MODEL"])
+		}
+	})
+
+	t.Run("alias primary overrides model param", func(t *testing.T) {
+		tmpDir := t.TempDir()
+		setTestHome(t, tmpDir)
+
+		saveIntegration("claude", []string{"saved-model"})
+		saveAliases("claude", map[string]string{"primary": "saved-model"})
+
+		got := envMap(c.modelEnvVars("different-model"))
+		if got["ANTHROPIC_DEFAULT_OPUS_MODEL"] != "saved-model" {
+			t.Errorf("OPUS = %q, want saved-model", got["ANTHROPIC_DEFAULT_OPUS_MODEL"])
+		}
+	})
+}

cmd/config/config.go

@@ -6,7 +6,6 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"log/slog"
 	"os"
 	"path/filepath"
 	"strings"
@@ -54,7 +53,6 @@ func migrateConfig() (bool, error) {
 
 	var js json.RawMessage
 	if err := json.Unmarshal(oldData, &js); err != nil {
-		slog.Warn("legacy config has invalid JSON, skipping migration", "path", oldPath, "error", err)
 		return false, nil
 	}
 
@@ -73,7 +71,6 @@ func migrateConfig() (bool, error) {
 	_ = os.Remove(oldPath)
 	_ = os.Remove(filepath.Dir(oldPath)) // clean up empty directory
 
-	slog.Info("migrated config", "from", oldPath, "to", newPath)
 	return true, nil
 }