diff --git a/daemon/agents.js b/daemon/agents.js
index 08d81c6..4095d25 100644
--- a/daemon/agents.js
+++ b/daemon/agents.js
@@ -6,13 +6,27 @@ import path from 'node:path';
const execFileP = promisify(execFile);
-// Each entry defines how to invoke the agent in non-interactive "one-shot" mode.
-// `buildArgs(prompt, imagePaths, extraAllowedDirs)` returns argv for the child
-// process. `extraAllowedDirs` is a list of absolute directories the agent must
-// be permitted to read files from (skill seeds, design-system specs) that live
+// Per-agent model picker:
+//
+// - `models` : selectable model presets shown in the UI. The
+// first entry is treated as the default. `id`
+// of `'default'` means "let the CLI pick" — the
+// agent runs with no `--model` flag, so the
+// user's local CLI config wins.
+// - `reasoningOptions` : optional reasoning-effort presets (currently
+// only Codex exposes this knob). Same `default`
+// convention as models.
+// - `buildArgs(prompt, imagePaths, extraAllowedDirs, options)` returns
+// argv for the child process. `options = { model, reasoning }` carries
+// whatever the user picked in the model menu — agents that don't take a
+// model flag ignore them.
+//
+// `extraAllowedDirs` is a list of absolute directories the agent must be
+// permitted to read files from (skill seeds, design-system specs) that live
// outside the project cwd. Currently only Claude Code wires this through
// (`--add-dir`); other agents either inherit broader access or run with cwd
// boundaries we can't widen via flags.
+//
// `streamFormat` hints to the daemon how to interpret stdout:
// - 'claude-stream-json' : line-delimited JSON emitted by Claude Code's
// `--output-format stream-json`. Daemon parses it into typed events
@@ -24,7 +38,13 @@ export const AGENT_DEFS = [
name: 'Claude Code',
bin: 'claude',
versionArgs: ['--version'],
- buildArgs: (prompt, _imagePaths, extraAllowedDirs = []) => {
+ models: [
+ { id: 'default', label: 'Default (CLI config)' },
+ { id: 'claude-opus-4-5', label: 'Opus 4.5' },
+ { id: 'claude-sonnet-4-5', label: 'Sonnet 4.5' },
+ { id: 'claude-haiku-4-5', label: 'Haiku 4.5' },
+ ],
+ buildArgs: (prompt, _imagePaths, extraAllowedDirs = [], options = {}) => {
const args = [
'-p',
prompt,
@@ -33,6 +53,9 @@ export const AGENT_DEFS = [
'--verbose',
'--include-partial-messages',
];
+ if (options.model && options.model !== 'default') {
+ args.push('--model', options.model);
+ }
const dirs = (extraAllowedDirs || []).filter(
(d) => typeof d === 'string' && d.length > 0,
);
@@ -48,7 +71,33 @@ export const AGENT_DEFS = [
name: 'Codex CLI',
bin: 'codex',
versionArgs: ['--version'],
- buildArgs: (prompt) => ['exec', prompt],
+ models: [
+ { id: 'default', label: 'Default (CLI config)' },
+ { id: 'gpt-5-codex', label: 'gpt-5-codex' },
+ { id: 'gpt-5', label: 'gpt-5' },
+ { id: 'o3', label: 'o3' },
+ { id: 'o4-mini', label: 'o4-mini' },
+ ],
+ reasoningOptions: [
+ { id: 'default', label: 'Default' },
+ { id: 'minimal', label: 'Minimal' },
+ { id: 'low', label: 'Low' },
+ { id: 'medium', label: 'Medium' },
+ { id: 'high', label: 'High' },
+ ],
+ buildArgs: (prompt, _imagePaths, _extra, options = {}) => {
+ const args = ['exec'];
+ if (options.model && options.model !== 'default') {
+ args.push('--model', options.model);
+ }
+ if (options.reasoning && options.reasoning !== 'default') {
+ // Codex accepts `-c key=value` config overrides; reasoning effort
+ // is exposed as `model_reasoning_effort`.
+ args.push('-c', `model_reasoning_effort="${options.reasoning}"`);
+ }
+ args.push(prompt);
+ return args;
+ },
streamFormat: 'plain',
},
{
@@ -56,7 +105,19 @@ export const AGENT_DEFS = [
name: 'Gemini CLI',
bin: 'gemini',
versionArgs: ['--version'],
- buildArgs: (prompt) => ['-p', prompt],
+ models: [
+ { id: 'default', label: 'Default (CLI config)' },
+ { id: 'gemini-2.5-pro', label: 'Gemini 2.5 Pro' },
+ { id: 'gemini-2.5-flash', label: 'Gemini 2.5 Flash' },
+ ],
+ buildArgs: (prompt, _imagePaths, _extra, options = {}) => {
+ const args = [];
+ if (options.model && options.model !== 'default') {
+ args.push('--model', options.model);
+ }
+ args.push('-p', prompt);
+ return args;
+ },
streamFormat: 'plain',
},
{
@@ -64,7 +125,22 @@ export const AGENT_DEFS = [
name: 'OpenCode',
bin: 'opencode',
versionArgs: ['--version'],
- buildArgs: (prompt) => ['run', prompt],
+ models: [
+ { id: 'default', label: 'Default (CLI config)' },
+ { id: 'anthropic/claude-sonnet-4-5', label: 'Anthropic · Sonnet 4.5' },
+ { id: 'anthropic/claude-opus-4-5', label: 'Anthropic · Opus 4.5' },
+ { id: 'anthropic/claude-haiku-4-5', label: 'Anthropic · Haiku 4.5' },
+ { id: 'openai/gpt-5', label: 'OpenAI · gpt-5' },
+ { id: 'google/gemini-2.5-pro', label: 'Google · Gemini 2.5 Pro' },
+ ],
+ buildArgs: (prompt, _imagePaths, _extra, options = {}) => {
+ const args = ['run'];
+ if (options.model && options.model !== 'default') {
+ args.push('--model', options.model);
+ }
+ args.push(prompt);
+ return args;
+ },
streamFormat: 'plain',
},
{
@@ -72,7 +148,21 @@ export const AGENT_DEFS = [
name: 'Cursor Agent',
bin: 'cursor-agent',
versionArgs: ['--version'],
- buildArgs: (prompt) => ['-p', prompt],
+ models: [
+ { id: 'default', label: 'Default (CLI config)' },
+ { id: 'auto', label: 'Auto' },
+ { id: 'claude-4-sonnet', label: 'Claude 4 Sonnet' },
+ { id: 'claude-4.5-sonnet', label: 'Claude 4.5 Sonnet' },
+ { id: 'gpt-5', label: 'gpt-5' },
+ ],
+ buildArgs: (prompt, _imagePaths, _extra, options = {}) => {
+ const args = [];
+ if (options.model && options.model !== 'default') {
+ args.push('--model', options.model);
+ }
+ args.push('-p', prompt);
+ return args;
+ },
streamFormat: 'plain',
},
{
@@ -80,7 +170,19 @@ export const AGENT_DEFS = [
name: 'Qwen Code',
bin: 'qwen',
versionArgs: ['--version'],
- buildArgs: (prompt) => ['-p', prompt],
+ models: [
+ { id: 'default', label: 'Default (CLI config)' },
+ { id: 'qwen3-coder-plus', label: 'qwen3-coder-plus' },
+ { id: 'qwen3-coder-flash', label: 'qwen3-coder-flash' },
+ ],
+ buildArgs: (prompt, _imagePaths, _extra, options = {}) => {
+ const args = [];
+ if (options.model && options.model !== 'default') {
+ args.push('--model', options.model);
+ }
+ args.push('-p', prompt);
+ return args;
+ },
streamFormat: 'plain',
},
];
@@ -114,6 +216,9 @@ async function probe(def) {
}
function stripFns(def) {
+ // Drop the buildArgs closure but keep declarative metadata (models,
+ // reasoningOptions, streamFormat) so the frontend can render the picker
+ // without a second round-trip.
const { buildArgs, ...rest } = def;
return rest;
}
diff --git a/daemon/server.js b/daemon/server.js
index c12311f..0bf8d80 100644
--- a/daemon/server.js
+++ b/daemon/server.js
@@ -690,6 +690,8 @@ export async function startServer({ port = 7456 } = {}) {
imagePaths = [],
projectId,
attachments = [],
+ model,
+ reasoning,
} = req.body || {};
const def = getAgentDef(agentId);
if (!def) return res.status(400).json({ error: `unknown agent: ${agentId}` });
@@ -779,7 +781,19 @@ export async function startServer({ port = 7456 } = {}) {
const extraAllowedDirs = [SKILLS_DIR, DESIGN_SYSTEMS_DIR].filter(
(d) => fs.existsSync(d),
);
- const args = def.buildArgs(composed, safeImages, extraAllowedDirs);
+ // Per-agent model + reasoning the user picked in the model menu.
+ // Validated against the agent's declared options so a stale or hostile
+ // value can't smuggle arbitrary flags into the spawned argv.
+ const safeModel =
+ typeof model === 'string' && Array.isArray(def.models)
+ ? def.models.find((m) => m.id === model)?.id ?? null
+ : null;
+ const safeReasoning =
+ typeof reasoning === 'string' && Array.isArray(def.reasoningOptions)
+ ? def.reasoningOptions.find((r) => r.id === reasoning)?.id ?? null
+ : null;
+ const agentOptions = { model: safeModel, reasoning: safeReasoning };
+ const args = def.buildArgs(composed, safeImages, extraAllowedDirs, agentOptions);
res.setHeader('Content-Type', 'text/event-stream');
res.setHeader('Cache-Control', 'no-cache, no-transform');
@@ -798,6 +812,8 @@ export async function startServer({ port = 7456 } = {}) {
streamFormat: def.streamFormat ?? 'plain',
projectId: typeof projectId === 'string' ? projectId : null,
cwd,
+ model: safeModel,
+ reasoning: safeReasoning,
});
let child;
diff --git a/src/App.tsx b/src/App.tsx
index b1afbc7..c4ea70b 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -137,6 +137,18 @@ export function App() {
[config],
);
+ const handleAgentModelChange = useCallback(
+ (agentId: string, choice: { model?: string; reasoning?: string }) => {
+ const prev = config.agentModels?.[agentId] ?? {};
+ const merged = { ...prev, ...choice };
+ const nextAgentModels = { ...(config.agentModels ?? {}), [agentId]: merged };
+ const next = { ...config, agentModels: nextAgentModels };
+ saveConfig(next);
+ setConfig(next);
+ },
+ [config],
+ );
+
const handleChangeDefaultDesignSystem = useCallback(
(designSystemId: string) => {
const next = { ...config, designSystemId };
@@ -272,6 +284,7 @@ export function App() {
daemonLive={daemonLive}
onModeChange={handleModeChange}
onAgentChange={handleAgentChange}
+ onAgentModelChange={handleAgentModelChange}
onRefreshAgents={refreshAgents}
onOpenSettings={openSettings}
onBack={handleBack}
diff --git a/src/components/AvatarMenu.tsx b/src/components/AvatarMenu.tsx
index 1b9c792..a3a5416 100644
--- a/src/components/AvatarMenu.tsx
+++ b/src/components/AvatarMenu.tsx
@@ -10,6 +10,10 @@ interface Props {
daemonLive: boolean;
onModeChange: (mode: ExecMode) => void;
onAgentChange: (id: string) => void;
+ onAgentModelChange: (
+ id: string,
+ choice: { model?: string; reasoning?: string },
+ ) => void;
onOpenSettings: () => void;
onRefreshAgents: () => void;
onBack?: () => void;
@@ -26,6 +30,7 @@ export function AvatarMenu({
daemonLive,
onModeChange,
onAgentChange,
+ onAgentModelChange,
onOpenSettings,
onRefreshAgents,
onBack,
@@ -58,6 +63,19 @@ export function AvatarMenu({
const installedAgents = agents.filter((a) => a.available);
+ // Resolve the user's model + reasoning pick for the active agent. Falls
+ // back to the agent's first declared option (`'default'`) when the user
+ // hasn't touched the picker yet so the labels don't read as empty.
+ const currentChoice =
+ (config.agentId && config.agentModels?.[config.agentId]) || {};
+ const currentModelId =
+ currentChoice.model ?? currentAgent?.models?.[0]?.id ?? null;
+ const currentReasoningId =
+ currentChoice.reasoning ?? currentAgent?.reasoningOptions?.[0]?.id ?? null;
+ const currentModelLabel = currentAgent?.models?.find(
+ (m) => m.id === currentModelId,
+ )?.label;
+
return (
@@ -133,18 +151,7 @@ export function AvatarMenu({
{config.mode === 'daemon' && installedAgents.length > 0 ? (
<>
-
- {t('avatar.codeAgent')}
-
+ {t('avatar.codeAgent')}
{installedAgents.map((a) => (
))}
+ {currentAgent &&
+ currentAgent.available &&
+ ((currentAgent.models && currentAgent.models.length > 0) ||
+ (currentAgent.reasoningOptions &&
+ currentAgent.reasoningOptions.length > 0)) ? (
+
+
+ {t('avatar.modelSection')}
+
+ {currentAgent.models && currentAgent.models.length > 0 ? (
+
+ ) : null}
+ {currentAgent.reasoningOptions &&
+ currentAgent.reasoningOptions.length > 0 ? (
+
+ ) : null}
+
+ ) : null}