Add per-agent MCP toolset configuration to agent setup

desktop/scripts/check-file-sizes.mjs

@@ -44,14 +44,14 @@ const overrides = new Map([
   ["src/shared/api/tauri.ts", 1100], // remote agent provider API bindings + canvas API functions
   ["src-tauri/src/lib.rs", 550], // sprout-media:// proxy now forwards Range headers + propagates Content-Range/Accept-Ranges for video seeking
   ["src-tauri/src/commands/media.rs", 720], // ffmpeg video transcode + poster frame extraction + run_ffmpeg_with_timeout (find_ffmpeg, is_video_file, transcode_to_mp4, extract_poster_frame, transcode_and_extract_poster) + spawn_blocking wrappers + tests
-  ["src-tauri/src/commands/agents.rs", 849], // remote agent lifecycle routing (local + provider branches) + scope enforcement; rustfmt adds line breaks around long tuple/closure blocks
+  ["src-tauri/src/commands/agents.rs", 860], // remote agent lifecycle routing (local + provider branches) + scope enforcement + mcp_toolsets field; rustfmt adds line breaks around long tuple/closure blocks
   ["src-tauri/src/managed_agents/runtime.rs", 650], // KNOWN_AGENT_BINARIES const + process_belongs_to_us FFI (macOS proc_name + Linux /proc/comm) + terminate_process + start/stop/sync lifecycle
   ["src-tauri/src/managed_agents/backend.rs", 530], // provider IPC, validation, discovery, binary resolution + tests
   ["src/features/agents/hooks.ts", 520], // agent query/mutation surface now includes built-in persona library activation
   ["src/features/agents/ui/AgentsView.tsx", 850], // remote agent lifecycle controls + persona/team management + built-in catalog/library state orchestration
   ["src/features/agents/ui/CreateAgentDialog.tsx", 685], // provider selector + config form + schema-typed config coercion + required field validation + locked scopes
   ["src/features/channels/ui/AddChannelBotDialog.tsx", 640], // provider mode: Run on selector, trust warning, probe effect, single-agent enforcement, provider warnings display
-  ["src/shared/api/types.ts", 530], // persona provider/model fields + forum types + workflow type re-exports + ephemeral channel TTL fields
+  ["src/shared/api/types.ts", 535], // persona provider/model fields + forum types + workflow type re-exports + ephemeral channel TTL fields + mcpToolsets
 ]);
 
 async function walkFiles(directory) {

desktop/src-tauri/src/commands/agent_models.rs

@@ -130,6 +130,13 @@ pub fn update_managed_agent(
     if let Some(prompt_update) = input.system_prompt {
         record.system_prompt = prompt_update;
     }
+    if let Some(toolsets_update) = input.mcp_toolsets {
+        record.mcp_toolsets = toolsets_update
+            .as_deref()
+            .map(str::trim)
+            .filter(|v| !v.is_empty())
+            .map(str::to_string);
+    }
     record.updated_at = now_iso();
 
     save_managed_agents(&app, &records)?;

desktop/src-tauri/src/commands/agents.rs

@@ -385,6 +385,12 @@ pub async fn create_managed_agent(
                 .map(str::trim)
                 .filter(|value| !value.is_empty())
                 .map(str::to_string),
+            mcp_toolsets: input
+                .mcp_toolsets
+                .as_deref()
+                .map(str::trim)
+                .filter(|value| !value.is_empty())
+                .map(str::to_string),
             // Provider agents don't auto-start with the desktop — they're
             // managed externally. Force false to avoid persisting a flag the
             // app will never honor.

desktop/src-tauri/src/managed_agents/runtime.rs

@@ -407,6 +407,7 @@ pub fn build_managed_agent_summary(
         parallelism: record.parallelism,
         system_prompt: record.system_prompt.clone(),
         model: record.model.clone(),
+        mcp_toolsets: record.mcp_toolsets.clone(),
         has_api_token: record.api_token.is_some(),
         backend: record.backend.clone(),
         backend_agent_id: record.backend_agent_id.clone(),
@@ -526,6 +527,11 @@ pub fn start_managed_agent_process(
     } else {
         command.env_remove("SPROUT_ACP_MODEL");
     }
+    if let Some(toolsets) = &record.mcp_toolsets {
+        command.env("SPROUT_TOOLSETS", toolsets);
+    } else {
+        command.env_remove("SPROUT_TOOLSETS");
+    }
     command.env_remove("SPROUT_ACP_PRIVATE_KEY");
     command.env_remove("SPROUT_ACP_API_TOKEN");
 

desktop/src-tauri/src/managed_agents/types.rs

@@ -77,6 +77,10 @@ pub struct ManagedAgentRecord {
     /// creation by matching this ID against the fresh session/new response.
     #[serde(default)]
     pub model: Option<String>,
+    /// Comma-separated toolset string forwarded as SPROUT_TOOLSETS to the MCP subprocess.
+    /// When None, the MCP server uses its own default ("default" toolset).
+    #[serde(default)]
+    pub mcp_toolsets: Option<String>,
     #[serde(default = "default_start_on_app_launch")]
     pub start_on_app_launch: bool,
     #[serde(default)]
@@ -117,6 +121,7 @@ pub struct ManagedAgentSummary {
     pub parallelism: u32,
     pub system_prompt: Option<String>,
     pub model: Option<String>,
+    pub mcp_toolsets: Option<String>,
     pub has_api_token: bool,
     pub backend: BackendKind,
     pub backend_agent_id: Option<String>,
@@ -151,6 +156,7 @@ pub struct CreateManagedAgentRequest {
     pub system_prompt: Option<String>,
     pub avatar_url: Option<String>,
     pub model: Option<String>,
+    pub mcp_toolsets: Option<String>,
     #[serde(default)]
     pub mint_token: bool,
     #[serde(default)]
@@ -271,6 +277,8 @@ pub struct UpdateManagedAgentRequest {
     pub model: Option<Option<String>>,
     #[serde(default)]
     pub system_prompt: Option<Option<String>>,
+    #[serde(default)]
+    pub mcp_toolsets: Option<Option<String>>,
 }
 
 /// Response from `get_agent_models` — normalized model info for the frontend.

desktop/src/features/agents/ui/CreateAgentDialog.tsx

@@ -53,6 +53,7 @@ export function CreateAgentDialog({
   const [agentCommand, setAgentCommand] = React.useState("goose");
   const [agentArgs, setAgentArgs] = React.useState("acp");
   const [mcpCommand, setMcpCommand] = React.useState("sprout-mcp-server");
+  const [mcpToolsets, setMcpToolsets] = React.useState("");
   const prereqsQuery = useManagedAgentPrereqsQuery(acpCommand, mcpCommand);
   const [name, setName] = React.useState("");
   const [relayUrl, setRelayUrl] = React.useState("");
@@ -213,6 +214,7 @@ export function CreateAgentDialog({
     setAgentCommand("goose");
     setAgentArgs("acp");
     setMcpCommand("sprout-mcp-server");
+    setMcpToolsets("");
     setTurnTimeoutSeconds("320");
     setParallelism("3");
     setSystemPrompt("");
@@ -355,6 +357,7 @@ export function CreateAgentDialog({
               .map((value) => value.trim())
               .filter((value) => value.length > 0),
             mcpCommand: mcpCommand.trim() || undefined,
+            mcpToolsets: mcpToolsets.trim() || undefined,
             turnTimeoutSeconds:
               Number.parseInt(turnTimeoutSeconds, 10) > 0
                 ? Number.parseInt(turnTimeoutSeconds, 10)
@@ -530,11 +533,13 @@ export function CreateAgentDialog({
                       agentArgs={agentArgs}
                       agentCommand={agentCommand}
                       mcpCommand={mcpCommand}
+                      mcpToolsets={mcpToolsets}
                       onParallelismChange={setParallelism}
                       onAcpCommandChange={setAcpCommand}
                       onAgentArgsChange={setAgentArgs}
                       onAgentCommandChange={setAgentCommand}
                       onMcpCommandChange={setMcpCommand}
+                      onMcpToolsetsChange={setMcpToolsets}
                       onRelayUrlChange={setRelayUrl}
                       onSystemPromptChange={setSystemPrompt}
                       onTurnTimeoutChange={setTurnTimeoutSeconds}

desktop/src/features/agents/ui/CreateAgentDialogSections.tsx

@@ -100,6 +100,7 @@ export function CreateAgentRuntimeFields({
   agentArgs,
   agentCommand,
   mcpCommand,
+  mcpToolsets,
   parallelism,
   relayUrl,
   selectedProviderId,
@@ -109,6 +110,7 @@ export function CreateAgentRuntimeFields({
   onAgentArgsChange,
   onAgentCommandChange,
   onMcpCommandChange,
+  onMcpToolsetsChange,
   onParallelismChange,
   onRelayUrlChange,
   onSystemPromptChange,
@@ -118,6 +120,7 @@ export function CreateAgentRuntimeFields({
   agentArgs: string;
   agentCommand: string;
   mcpCommand: string;
+  mcpToolsets: string;
   parallelism: string;
   relayUrl: string;
   selectedProviderId: string;
@@ -127,6 +130,7 @@ export function CreateAgentRuntimeFields({
   onAgentArgsChange: (value: string) => void;
   onAgentCommandChange: (value: string) => void;
   onMcpCommandChange: (value: string) => void;
+  onMcpToolsetsChange: (value: string) => void;
   onParallelismChange: (value: string) => void;
   onRelayUrlChange: (value: string) => void;
   onSystemPromptChange: (value: string) => void;
@@ -280,6 +284,23 @@ export function CreateAgentRuntimeFields({
         </div>
       </div>
 
+      <div className="space-y-1.5">
+        <label className="text-sm font-medium" htmlFor="agent-mcp-toolsets">
+          MCP toolsets
+        </label>
+        <Input
+          id="agent-mcp-toolsets"
+          onChange={(event) => onMcpToolsetsChange(event.target.value)}
+          placeholder="default"
+          value={mcpToolsets}
+        />
+        <p className="text-xs text-muted-foreground">
+          Comma-separated list of toolsets to expose via SPROUT_TOOLSETS.
+          Available: default, channel_admin, dms, canvas, workflow_admin,
+          identity, forums, social. Leave blank for the default toolset only.
+        </p>
+      </div>
+
       <div className="space-y-1.5">
         <label className="text-sm font-medium" htmlFor="agent-system-prompt">
           System prompt override

desktop/src/shared/api/tauri.ts

@@ -240,6 +240,7 @@ export type RawManagedAgent = {
   parallelism: number;
   system_prompt: string | null;
   model: string | null;
+  mcp_toolsets: string | null;
   has_api_token: boolean;
   status: ManagedAgent["status"];
   pid: number | null;
@@ -831,6 +832,7 @@ export function fromRawManagedAgent(agent: RawManagedAgent): ManagedAgent {
     parallelism: agent.parallelism,
     systemPrompt: agent.system_prompt,
     model: agent.model,
+    mcpToolsets: agent.mcp_toolsets,
     hasApiToken: agent.has_api_token,
     status: agent.status,
     pid: agent.pid,
@@ -927,6 +929,7 @@ export async function createManagedAgent(input: CreateManagedAgentInput) {
         agentCommand: input.agentCommand,
         agentArgs: input.agentArgs,
         mcpCommand: input.mcpCommand,
+        mcpToolsets: input.mcpToolsets,
         turnTimeoutSeconds: input.turnTimeoutSeconds,
         idleTimeoutSeconds: input.idleTimeoutSeconds,
         maxTurnDurationSeconds: input.maxTurnDurationSeconds,

desktop/src/shared/api/types.ts

@@ -294,6 +294,7 @@ export type ManagedAgent = {
   parallelism: number;
   systemPrompt: string | null;
   model: string | null;
+  mcpToolsets: string | null;
   hasApiToken: boolean;
   status: "running" | "stopped" | "deployed" | "not_deployed";
   pid: number | null;
@@ -337,6 +338,7 @@ export type CreateManagedAgentInput = {
   systemPrompt?: string;
   avatarUrl?: string;
   model?: string;
+  mcpToolsets?: string;
   mintToken?: boolean;
   tokenScopes?: TokenScope[];
   tokenName?: string;
@@ -407,6 +409,7 @@ export type UpdateManagedAgentInput = {
   name?: string;
   model?: string | null;
   systemPrompt?: string | null;
+  mcpToolsets?: string | null;
 };
 export type AgentPersona = {
   id: string;