feat(tui): custom commands

.opencode/command/hello.md

@@ -1,3 +1,7 @@
+---
+description: hello world
+---
+
 hey there $ARGUMENTS
 
 !`ls`

logs/.496fc674ed58d31f8b883da41cc2adb4564aad58-audit.json

@@ -0,0 +1,15 @@
+{
+    "keep": {
+        "days": true,
+        "amount": 14
+    },
+    "auditLog": "/Users/adam/code/opencode/dev/logs/.496fc674ed58d31f8b883da41cc2adb4564aad58-audit.json",
+    "files": [
+        {
+            "date": 1755891797740,
+            "name": "/Users/adam/code/opencode/dev/logs/mcp-puppeteer-2025-08-22.log",
+            "hash": "dd9b1f2e98b661ba2f56b91dd9afbdb25e50adbdd52ed1b0eef1d2045235d17c"
+        }
+    ],
+    "hashType": "sha256"
+}

logs/mcp-puppeteer-2025-08-22.log

@@ -0,0 +1,6 @@
+{"level":"info","message":"Starting MCP server","service":"mcp-puppeteer","timestamp":"2025-08-22 14:43:17.765"}
+{"level":"info","message":"MCP server started successfully","service":"mcp-puppeteer","timestamp":"2025-08-22 14:43:17.766"}
+{"level":"info","message":"Starting MCP server","service":"mcp-puppeteer","timestamp":"2025-08-22 14:46:45.539"}
+{"level":"info","message":"MCP server started successfully","service":"mcp-puppeteer","timestamp":"2025-08-22 14:46:45.540"}
+{"level":"info","message":"Starting MCP server","service":"mcp-puppeteer","timestamp":"2025-08-22 14:53:08.159"}
+{"level":"info","message":"MCP server started successfully","service":"mcp-puppeteer","timestamp":"2025-08-22 14:53:08.160"}

packages/opencode/src/command/index.ts

@@ -3,13 +3,17 @@ import { App } from "../app/app"
 import { Config } from "../config/config"
 
 export namespace Command {
-  export const Info = z.object({
+  export const Info = z
+    .object({
       name: z.string(),
       description: z.string().optional(),
       agent: z.string().optional(),
       model: z.string().optional(),
       template: z.string(),
     })
+    .openapi({
+      ref: "Command",
+    })
   export type Info = z.infer<typeof Info>
 
   const state = App.state("command", async () => {

packages/opencode/src/server/server.ts

@@ -21,6 +21,7 @@ import { Permission } from "../permission"
 import { lazy } from "../util/lazy"
 import { Agent } from "../agent/agent"
 import { Auth } from "../auth"
+import { Command } from "../command"
 
 const ERRORS = {
   400: {
@@ -632,21 +633,45 @@ export namespace Server {
         async (c) => {
           const sessionID = c.req.valid("param").id
           const body = c.req.valid("json")
-          const text = body.parts.find((x) => x.type === "text")?.text
-          if (text?.startsWith("/")) {
-            const [command, ...args] = text.split(" ")
-            const msg = await Session.command({
-              command: command.slice(1),
-              arguments: args.join(" "),
-              sessionID,
-              ...body,
-            })
-            return c.json(msg)
-          }
           const msg = await Session.chat({ ...body, sessionID })
           return c.json(msg)
         },
       )
+      .post(
+        "/session/:id/command",
+        describeRoute({
+          description: "Send a new command to a session",
+          operationId: "session.command",
+          responses: {
+            200: {
+              description: "Created message",
+              content: {
+                "application/json": {
+                  schema: resolver(
+                    z.object({
+                      info: MessageV2.Assistant,
+                      parts: MessageV2.Part.array(),
+                    }),
+                  ),
+                },
+              },
+            },
+          },
+        }),
+        zValidator(
+          "param",
+          z.object({
+            id: z.string().openapi({ description: "Session ID" }),
+          }),
+        ),
+        zValidator("json", Session.CommandInput.omit({ sessionID: true })),
+        async (c) => {
+          const sessionID = c.req.valid("param").id
+          const body = c.req.valid("json")
+          const msg = await Session.command({ ...body, sessionID })
+          return c.json(msg)
+        },
+      )
       .post(
         "/session/:id/shell",
         describeRoute({
@@ -766,6 +791,27 @@ export namespace Server {
           return c.json(true)
         },
       )
+      .get(
+        "/command",
+        describeRoute({
+          description: "List all commands",
+          operationId: "command.list",
+          responses: {
+            200: {
+              description: "List of commands",
+              content: {
+                "application/json": {
+                  schema: resolver(Command.Info.array()),
+                },
+              },
+            },
+          },
+        }),
+        async (c) => {
+          const commands = await Command.list()
+          return c.json(commands)
+        },
+      )
       .get(
         "/config/providers",
         describeRoute({

packages/sdk/go/.stats.yml

@@ -1,4 +1,4 @@
-configured_endpoints: 39
+configured_endpoints: 41
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/opencode%2Fopencode-be3e40e0bf7dde2bb15ff82d5d104418fb47fe335808a1aa6468b0be2210a88f.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/opencode%2Fopencode-d5200eaa145f567a58daa78941ab1141dd63f5f0cfe1596d5c9ecf12d34fea35.yml
-openapi_spec_hash: c1bbb3ebd807656bd9f31a618077e76b
+openapi_spec_hash: abeb66291dc158f2cdc90bf9945e283e
-config_hash: eab3723c4c2232a6ba1821151259d6da
+config_hash: fb625e876313a9f8f31532348fa91f59

packages/sdk/go/api.md

@@ -70,6 +70,16 @@ Methods:
 
 - <code title="get /config">client.Config.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#ConfigService.Get">Get</a>(ctx <a href="https://pkg.go.dev/context">context</a>.<a href="https://pkg.go.dev/context#Context">Context</a>) (<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#Config">Config</a>, <a href="https://pkg.go.dev/builtin#error">error</a>)</code>
 
+# Command
+
+Response Types:
+
+- <a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#Command">Command</a>
+
+Methods:
+
+- <code title="get /command">client.Command.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#CommandService.List">List</a>(ctx <a href="https://pkg.go.dev/context">context</a>.<a href="https://pkg.go.dev/context#Context">Context</a>) ([]<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#Command">Command</a>, <a href="https://pkg.go.dev/builtin#error">error</a>)</code>
+
 # Session
 
 Params Types:
@@ -106,6 +116,7 @@ Response Types:
 - <a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#ToolStateRunning">ToolStateRunning</a>
 - <a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#UserMessage">UserMessage</a>
 - <a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionChatResponse">SessionChatResponse</a>
+- <a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionCommandResponse">SessionCommandResponse</a>
 - <a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionMessageResponse">SessionMessageResponse</a>
 - <a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionMessagesResponse">SessionMessagesResponse</a>
 
@@ -118,6 +129,7 @@ Methods:
 - <code title="post /session/{id}/abort">client.Session.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionService.Abort">Abort</a>(ctx <a href="https://pkg.go.dev/context">context</a>.<a href="https://pkg.go.dev/context#Context">Context</a>, id <a href="https://pkg.go.dev/builtin#string">string</a>) (<a href="https://pkg.go.dev/builtin#bool">bool</a>, <a href="https://pkg.go.dev/builtin#error">error</a>)</code>
 - <code title="post /session/{id}/message">client.Session.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionService.Chat">Chat</a>(ctx <a href="https://pkg.go.dev/context">context</a>.<a href="https://pkg.go.dev/context#Context">Context</a>, id <a href="https://pkg.go.dev/builtin#string">string</a>, body <a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionChatParams">SessionChatParams</a>) (<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionChatResponse">SessionChatResponse</a>, <a href="https://pkg.go.dev/builtin#error">error</a>)</code>
 - <code title="get /session/{id}/children">client.Session.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionService.Children">Children</a>(ctx <a href="https://pkg.go.dev/context">context</a>.<a href="https://pkg.go.dev/context#Context">Context</a>, id <a href="https://pkg.go.dev/builtin#string">string</a>) ([]<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#Session">Session</a>, <a href="https://pkg.go.dev/builtin#error">error</a>)</code>
+- <code title="post /session/{id}/command">client.Session.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionService.Command">Command</a>(ctx <a href="https://pkg.go.dev/context">context</a>.<a href="https://pkg.go.dev/context#Context">Context</a>, id <a href="https://pkg.go.dev/builtin#string">string</a>, body <a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionCommandParams">SessionCommandParams</a>) (<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionCommandResponse">SessionCommandResponse</a>, <a href="https://pkg.go.dev/builtin#error">error</a>)</code>
 - <code title="get /session/{id}">client.Session.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionService.Get">Get</a>(ctx <a href="https://pkg.go.dev/context">context</a>.<a href="https://pkg.go.dev/context#Context">Context</a>, id <a href="https://pkg.go.dev/builtin#string">string</a>) (<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#Session">Session</a>, <a href="https://pkg.go.dev/builtin#error">error</a>)</code>
 - <code title="post /session/{id}/init">client.Session.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionService.Init">Init</a>(ctx <a href="https://pkg.go.dev/context">context</a>.<a href="https://pkg.go.dev/context#Context">Context</a>, id <a href="https://pkg.go.dev/builtin#string">string</a>, body <a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionInitParams">SessionInitParams</a>) (<a href="https://pkg.go.dev/builtin#bool">bool</a>, <a href="https://pkg.go.dev/builtin#error">error</a>)</code>
 - <code title="get /session/{id}/message/{messageID}">client.Session.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionService.Message">Message</a>(ctx <a href="https://pkg.go.dev/context">context</a>.<a href="https://pkg.go.dev/context#Context">Context</a>, id <a href="https://pkg.go.dev/builtin#string">string</a>, messageID <a href="https://pkg.go.dev/builtin#string">string</a>) (<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go">opencode</a>.<a href="https://pkg.go.dev/github.com/sst/opencode-sdk-go#SessionMessageResponse">SessionMessageResponse</a>, <a href="https://pkg.go.dev/builtin#error">error</a>)</code>

packages/sdk/go/client.go

@@ -21,6 +21,7 @@ type Client struct {
 	Find    *FindService
 	File    *FileService
 	Config  *ConfigService
+	Command *CommandService
 	Session *SessionService
 	Tui     *TuiService
 }
@@ -49,6 +50,7 @@ func NewClient(opts ...option.RequestOption) (r *Client) {
 	r.Find = NewFindService(opts...)
 	r.File = NewFileService(opts...)
 	r.Config = NewConfigService(opts...)
+	r.Command = NewCommandService(opts...)
 	r.Session = NewSessionService(opts...)
 	r.Tui = NewTuiService(opts...)
 

packages/sdk/go/command.go

@@ -0,0 +1,67 @@
+// File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
+
+package opencode
+
+import (
+	"context"
+	"net/http"
+
+	"github.com/sst/opencode-sdk-go/internal/apijson"
+	"github.com/sst/opencode-sdk-go/internal/requestconfig"
+	"github.com/sst/opencode-sdk-go/option"
+)
+
+// CommandService contains methods and other services that help with interacting
+// with the opencode API.
+//
+// Note, unlike clients, this service does not read variables from the environment
+// automatically. You should not instantiate this service directly, and instead use
+// the [NewCommandService] method instead.
+type CommandService struct {
+	Options []option.RequestOption
+}
+
+// NewCommandService generates a new service that applies the given options to each
+// request. These options are applied after the parent client's options (if there
+// is one), and before any request-specific options.
+func NewCommandService(opts ...option.RequestOption) (r *CommandService) {
+	r = &CommandService{}
+	r.Options = opts
+	return
+}
+
+// List all commands
+func (r *CommandService) List(ctx context.Context, opts ...option.RequestOption) (res *[]Command, err error) {
+	opts = append(r.Options[:], opts...)
+	path := "command"
+	err = requestconfig.ExecuteNewRequest(ctx, http.MethodGet, path, nil, &res, opts...)
+	return
+}
+
+type Command struct {
+	Name        string      `json:"name,required"`
+	Template    string      `json:"template,required"`
+	Agent       string      `json:"agent"`
+	Description string      `json:"description"`
+	Model       string      `json:"model"`
+	JSON        commandJSON `json:"-"`
+}
+
+// commandJSON contains the JSON metadata for the struct [Command]
+type commandJSON struct {
+	Name        apijson.Field
+	Template    apijson.Field
+	Agent       apijson.Field
+	Description apijson.Field
+	Model       apijson.Field
+	raw         string
+	ExtraFields map[string]apijson.Field
+}
+
+func (r *Command) UnmarshalJSON(data []byte) (err error) {
+	return apijson.UnmarshalRoot(data, r)
+}
+
+func (r commandJSON) RawJSON() string {
+	return r.raw
+}

packages/sdk/go/command_test.go

@@ -0,0 +1,36 @@
+// File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
+
+package opencode_test
+
+import (
+	"context"
+	"errors"
+	"os"
+	"testing"
+
+	"github.com/sst/opencode-sdk-go"
+	"github.com/sst/opencode-sdk-go/internal/testutil"
+	"github.com/sst/opencode-sdk-go/option"
+)
+
+func TestCommandList(t *testing.T) {
+	t.Skip("skipped: tests are disabled for the time being")
+	baseURL := "http://localhost:4010"
+	if envURL, ok := os.LookupEnv("TEST_API_BASE_URL"); ok {
+		baseURL = envURL
+	}
+	if !testutil.CheckTestServer(t, baseURL) {
+		return
+	}
+	client := opencode.NewClient(
+		option.WithBaseURL(baseURL),
+	)
+	_, err := client.Command.List(context.TODO())
+	if err != nil {
+		var apierr *opencode.Error
+		if errors.As(err, &apierr) {
+			t.Log(string(apierr.DumpRequest(true)))
+		}
+		t.Fatalf("err should be nil: %s", err.Error())
+	}
+}

packages/sdk/go/config.go

@@ -50,6 +50,7 @@ type Config struct {
 	Autoshare bool `json:"autoshare"`
 	// Automatically update to the latest version
 	Autoupdate bool                     `json:"autoupdate"`
+	Command    map[string]ConfigCommand `json:"command"`
 	// Disable providers that are loaded automatically
 	DisabledProviders []string                   `json:"disabled_providers"`
 	Experimental      ConfigExperimental         `json:"experimental"`
@@ -94,6 +95,7 @@ type configJSON struct {
 	Agent             apijson.Field
 	Autoshare         apijson.Field
 	Autoupdate        apijson.Field
+	Command           apijson.Field
 	DisabledProviders apijson.Field
 	Experimental      apijson.Field
 	Formatter         apijson.Field
@@ -664,6 +666,32 @@ func (r ConfigAgentPlanPermissionWebfetch) IsKnown() bool {
 	return false
 }
 
+type ConfigCommand struct {
+	Template    string            `json:"template,required"`
+	Agent       string            `json:"agent"`
+	Description string            `json:"description"`
+	Model       string            `json:"model"`
+	JSON        configCommandJSON `json:"-"`
+}
+
+// configCommandJSON contains the JSON metadata for the struct [ConfigCommand]
+type configCommandJSON struct {
+	Template    apijson.Field
+	Agent       apijson.Field
+	Description apijson.Field
+	Model       apijson.Field
+	raw         string
+	ExtraFields map[string]apijson.Field
+}
+
+func (r *ConfigCommand) UnmarshalJSON(data []byte) (err error) {
+	return apijson.UnmarshalRoot(data, r)
+}
+
+func (r configCommandJSON) RawJSON() string {
+	return r.raw
+}
+
 type ConfigExperimental struct {
 	Hook ConfigExperimentalHook `json:"hook"`
 	JSON configExperimentalJSON `json:"-"`

packages/sdk/go/session.go

@@ -114,6 +114,18 @@ func (r *SessionService) Children(ctx context.Context, id string, opts ...option
 	return
 }
 
+// Send a new command to a session
+func (r *SessionService) Command(ctx context.Context, id string, body SessionCommandParams, opts ...option.RequestOption) (res *SessionCommandResponse, err error) {
+	opts = append(r.Options[:], opts...)
+	if id == "" {
+		err = errors.New("missing required id parameter")
+		return
+	}
+	path := fmt.Sprintf("session/%s/command", id)
+	err = requestconfig.ExecuteNewRequest(ctx, http.MethodPost, path, body, &res, opts...)
+	return
+}
+
 // Get session
 func (r *SessionService) Get(ctx context.Context, id string, opts ...option.RequestOption) (res *Session, err error) {
 	opts = append(r.Options[:], opts...)
@@ -2301,6 +2313,29 @@ func (r sessionChatResponseJSON) RawJSON() string {
 	return r.raw
 }
 
+type SessionCommandResponse struct {
+	Info  AssistantMessage           `json:"info,required"`
+	Parts []Part                     `json:"parts,required"`
+	JSON  sessionCommandResponseJSON `json:"-"`
+}
+
+// sessionCommandResponseJSON contains the JSON metadata for the struct
+// [SessionCommandResponse]
+type sessionCommandResponseJSON struct {
+	Info        apijson.Field
+	Parts       apijson.Field
+	raw         string
+	ExtraFields map[string]apijson.Field
+}
+
+func (r *SessionCommandResponse) UnmarshalJSON(data []byte) (err error) {
+	return apijson.UnmarshalRoot(data, r)
+}
+
+func (r sessionCommandResponseJSON) RawJSON() string {
+	return r.raw
+}
+
 type SessionMessageResponse struct {
 	Info  Message                    `json:"info,required"`
 	Parts []Part                     `json:"parts,required"`
@@ -2419,6 +2454,18 @@ func (r SessionChatParamsPartsType) IsKnown() bool {
 	return false
 }
 
+type SessionCommandParams struct {
+	Arguments param.Field[string] `json:"arguments,required"`
+	Command   param.Field[string] `json:"command,required"`
+	Agent     param.Field[string] `json:"agent"`
+	MessageID param.Field[string] `json:"messageID"`
+	Model     param.Field[string] `json:"model"`
+}
+
+func (r SessionCommandParams) MarshalJSON() (data []byte, err error) {
+	return apijson.MarshalRoot(r)
+}
+
 type SessionInitParams struct {
 	MessageID  param.Field[string] `json:"messageID,required"`
 	ModelID    param.Field[string] `json:"modelID,required"`

packages/sdk/go/session_test.go

@@ -199,6 +199,38 @@ func TestSessionChildren(t *testing.T) {
 	}
 }
 
+func TestSessionCommandWithOptionalParams(t *testing.T) {
+	t.Skip("skipped: tests are disabled for the time being")
+	baseURL := "http://localhost:4010"
+	if envURL, ok := os.LookupEnv("TEST_API_BASE_URL"); ok {
+		baseURL = envURL
+	}
+	if !testutil.CheckTestServer(t, baseURL) {
+		return
+	}
+	client := opencode.NewClient(
+		option.WithBaseURL(baseURL),
+	)
+	_, err := client.Session.Command(
+		context.TODO(),
+		"id",
+		opencode.SessionCommandParams{
+			Arguments: opencode.F("arguments"),
+			Command:   opencode.F("command"),
+			Agent:     opencode.F("agent"),
+			MessageID: opencode.F("msg"),
+			Model:     opencode.F("model"),
+		},
+	)
+	if err != nil {
+		var apierr *opencode.Error
+		if errors.As(err, &apierr) {
+			t.Log(string(apierr.DumpRequest(true)))
+		}
+		t.Fatalf("err should be nil: %s", err.Error())
+	}
+}
+
 func TestSessionGet(t *testing.T) {
 	t.Skip("skipped: tests are disabled for the time being")
 	baseURL := "http://localhost:4010"

packages/sdk/js/src/gen/sdk.gen.ts

@@ -39,6 +39,8 @@ import type {
   SessionChatResponses,
   SessionMessageData,
   SessionMessageResponses,
+  SessionCommandData,
+  SessionCommandResponses,
   SessionShellData,
   SessionShellResponses,
   SessionRevertData,
@@ -47,6 +49,8 @@ import type {
   SessionUnrevertResponses,
   PostSessionByIdPermissionsByPermissionIdData,
   PostSessionByIdPermissionsByPermissionIdResponses,
+  CommandListData,
+  CommandListResponses,
   ConfigProvidersData,
   ConfigProvidersResponses,
   FindTextData,
@@ -355,6 +359,20 @@ class Session extends _HeyApiClient {
     })
   }
 
+  /**
+   * Send a new command to a session
+   */
+  public command<ThrowOnError extends boolean = false>(options: Options<SessionCommandData, ThrowOnError>) {
+    return (options.client ?? this._client).post<SessionCommandResponses, unknown, ThrowOnError>({
+      url: "/session/{id}/command",
+      ...options,
+      headers: {
+        "Content-Type": "application/json",
+        ...options.headers,
+      },
+    })
+  }
+
   /**
    * Run a shell command
    */
@@ -394,6 +412,18 @@ class Session extends _HeyApiClient {
   }
 }
 
+class Command extends _HeyApiClient {
+  /**
+   * List all commands
+   */
+  public list<ThrowOnError extends boolean = false>(options?: Options<CommandListData, ThrowOnError>) {
+    return (options?.client ?? this._client).get<CommandListResponses, unknown, ThrowOnError>({
+      url: "/command",
+      ...options,
+    })
+  }
+}
+
 class Find extends _HeyApiClient {
   /**
    * Find text in files
@@ -592,6 +622,7 @@ export class OpencodeClient extends _HeyApiClient {
   app = new App({ client: this._client })
   config = new Config({ client: this._client })
   session = new Session({ client: this._client })
+  command = new Command({ client: this._client })
   find = new Find({ client: this._client })
   file = new File({ client: this._client })
   tui = new Tui({ client: this._client })

packages/sdk/js/src/gen/types.gen.ts

@@ -585,6 +585,14 @@ export type Config = {
      */
     scroll_speed: number
   }
+  command?: {
+    [key: string]: {
+      template: string
+      description?: string
+      agent?: string
+      model?: string
+    }
+  }
   plugin?: Array<string>
   snapshot?: boolean
   /**
@@ -1110,6 +1118,14 @@ export type AgentPartInput = {
   }
 }
 
+export type Command = {
+  name: string
+  description?: string
+  agent?: string
+  model?: string
+  template: string
+}
+
 export type Symbol = {
   name: string
   kind: number
@@ -1563,6 +1579,36 @@ export type SessionMessageResponses = {
 
 export type SessionMessageResponse = SessionMessageResponses[keyof SessionMessageResponses]
 
+export type SessionCommandData = {
+  body?: {
+    messageID?: string
+    agent?: string
+    model?: string
+    arguments: string
+    command: string
+  }
+  path: {
+    /**
+     * Session ID
+     */
+    id: string
+  }
+  query?: never
+  url: "/session/{id}/command"
+}
+
+export type SessionCommandResponses = {
+  /**
+   * Created message
+   */
+  200: {
+    info: AssistantMessage
+    parts: Array<Part>
+  }
+}
+
+export type SessionCommandResponse = SessionCommandResponses[keyof SessionCommandResponses]
+
 export type SessionShellData = {
   body?: {
     agent: string
@@ -1648,6 +1694,22 @@ export type PostSessionByIdPermissionsByPermissionIdResponses = {
 export type PostSessionByIdPermissionsByPermissionIdResponse =
   PostSessionByIdPermissionsByPermissionIdResponses[keyof PostSessionByIdPermissionsByPermissionIdResponses]
 
+export type CommandListData = {
+  body?: never
+  path?: never
+  query?: never
+  url: "/command"
+}
+
+export type CommandListResponses = {
+  /**
+   * List of commands
+   */
+  200: Array<Command>
+}
+
+export type CommandListResponse = CommandListResponses[keyof CommandListResponses]
+
 export type ConfigProvidersData = {
   body?: never
   path?: never

packages/sdk/stainless/stainless.yml

@@ -85,6 +85,12 @@ resources:
     methods:
       get: get /config
 
+  command:
+    models:
+      command: Command
+    methods:
+      list: get /command
+
   session:
     models:
       session: Session
@@ -126,6 +132,7 @@ resources:
       message: get /session/{id}/message/{messageID}
       messages: get /session/{id}/message
       chat: post /session/{id}/message
+      command: post /session/{id}/command
       shell: post /session/{id}/shell
       update: patch /session/{id}
       revert: post /session/{id}/revert

packages/tui/internal/app/app.go

@@ -84,6 +84,10 @@ type SendPrompt = Prompt
 type SendShell = struct {
 	Command string
 }
+type SendCommand = struct {
+	Command string
+	Args    string
+}
 type SetEditorContentMsg struct {
 	Text string
 }
@@ -183,6 +187,11 @@ func New(
 
 	slog.Debug("Loaded config", "config", configInfo)
 
+	customCommands, err := httpClient.Command.List(ctx)
+	if err != nil {
+		return nil, err
+	}
+
 	app := &App{
 		Info:           appInfo,
 		Agents:         agents,
@@ -194,7 +203,7 @@ func New(
 		AgentIndex:     agentIndex,
 		Session:        &opencode.Session{},
 		Messages:       []Message{},
-		Commands:       commands.LoadFromConfig(configInfo),
+		Commands:       commands.LoadFromConfig(configInfo, *customCommands),
 		InitialModel:   initialModel,
 		InitialPrompt:  initialPrompt,
 		InitialAgent:   initialAgent,
@@ -793,6 +802,38 @@ func (a *App) SendPrompt(ctx context.Context, prompt Prompt) (*App, tea.Cmd) {
 	return a, tea.Batch(cmds...)
 }
 
+func (a *App) SendCommand(ctx context.Context, command string, args string) (*App, tea.Cmd) {
+	var cmds []tea.Cmd
+	if a.Session.ID == "" {
+		session, err := a.CreateSession(ctx)
+		if err != nil {
+			return a, toast.NewErrorToast(err.Error())
+		}
+		a.Session = session
+		cmds = append(cmds, util.CmdHandler(SessionCreatedMsg{Session: session}))
+	}
+
+	cmds = append(cmds, func() tea.Msg {
+		_, err := a.Client.Session.Command(
+			context.Background(),
+			a.Session.ID,
+			opencode.SessionCommandParams{
+				Command:   opencode.F(command),
+				Arguments: opencode.F(args),
+			},
+		)
+		if err != nil {
+			slog.Error("Failed to execute command", "error", err)
+			return toast.NewErrorToast("Failed to execute command")
+		}
+		return nil
+	})
+
+	// The actual response will come through SSE
+	// For now, just return success
+	return a, tea.Batch(cmds...)
+}
+
 func (a *App) SendShell(ctx context.Context, command string) (*App, tea.Cmd) {
 	var cmds []tea.Cmd
 	if a.Session.ID == "" {

packages/tui/internal/commands/command.go

@@ -31,6 +31,7 @@ type Command struct {
 	Description string
 	Keybindings []Keybinding
 	Trigger     []string
+	Custom      bool
 }
 
 func (c Command) Keys() []string {
@@ -96,6 +97,7 @@ func (r CommandRegistry) Sorted() []Command {
 	})
 	return commands
 }
+
 func (r CommandRegistry) Matches(msg tea.KeyPressMsg, leader bool) []Command {
 	var matched []Command
 	for _, command := range r.Sorted() {
@@ -182,7 +184,7 @@ func parseBindings(bindings ...string) []Keybinding {
 	return parsedBindings
 }
 
-func LoadFromConfig(config *opencode.Config) CommandRegistry {
+func LoadFromConfig(config *opencode.Config, customCommands []opencode.Command) CommandRegistry {
 	defaults := []Command{
 		{
 			Name:        AppHelpCommand,
@@ -400,6 +402,16 @@ func LoadFromConfig(config *opencode.Config) CommandRegistry {
 		}
 		registry[command.Name] = command
 	}
+	for _, command := range customCommands {
+		registry[CommandName(command.Name)] = Command{
+			Name:        CommandName(command.Name),
+			Description: command.Description,
+			Trigger:     []string{command.Name},
+			Keybindings: []Keybinding{},
+			Custom:      true,
+		}
+	}
+
 	slog.Info("Loaded commands", "commands", registry)
 	return registry
 }

packages/tui/internal/components/chat/editor.go

@@ -224,10 +224,17 @@ func (m *editorComponent) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 	case dialog.CompletionSelectedMsg:
 		switch msg.Item.ProviderID {
 		case "commands":
-			commandName := strings.TrimPrefix(msg.Item.Value, "/")
+			command := msg.Item.RawData.(commands.Command)
+			if command.Custom {
+				m.SetValue("/" + command.PrimaryTrigger() + " ")
+				return m, nil
+			}
+
 			updated, cmd := m.Clear()
 			m = updated.(*editorComponent)
 			cmds = append(cmds, cmd)
+
+			commandName := strings.TrimPrefix(msg.Item.Value, "/")
 			cmds = append(cmds, util.CmdHandler(commands.ExecuteCommandMsg(m.app.Commands[commands.CommandName(commandName)])))
 			return m, tea.Batch(cmds...)
 		case "files":
@@ -481,6 +488,25 @@ func (m *editorComponent) Submit() (tea.Model, tea.Cmd) {
 	}
 
 	var cmds []tea.Cmd
+	if strings.HasPrefix(value, "/") {
+		value = value[1:]
+		commandName := strings.Split(value, " ")[0]
+		command := m.app.Commands[commands.CommandName(commandName)]
+		if command.Custom {
+			args := strings.TrimPrefix(value, command.PrimaryTrigger()+" ")
+			cmds = append(
+				cmds,
+				util.CmdHandler(app.SendCommand{Command: string(command.Name), Args: args}),
+			)
+
+			updated, cmd := m.Clear()
+			m = updated.(*editorComponent)
+			cmds = append(cmds, cmd)
+
+			return m, tea.Batch(cmds...)
+		}
+	}
+
 	attachments := m.textarea.GetAttachments()
 
 	prompt := app.Prompt{Text: value, Attachments: attachments}

packages/tui/internal/components/chat/messages.go

@@ -174,6 +174,10 @@ func (m *messagesComponent) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		m.viewport.GotoBottom()
 		m.tail = true
 		return m, nil
+	case app.SendCommand:
+		m.viewport.GotoBottom()
+		m.tail = true
+		return m, nil
 	case dialog.ThemeSelectedMsg:
 		m.cache.Clear()
 		m.loading = true

packages/tui/internal/tui/tui.go

@@ -408,6 +408,24 @@ func (a Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 			a.app, cmd = a.app.SendPrompt(context.Background(), msg)
 			cmds = append(cmds, cmd)
 		}
+	case app.SendCommand:
+		// If we're in a child session, switch back to parent before sending prompt
+		if a.app.Session.ParentID != "" {
+			parentSession, err := a.app.Client.Session.Get(context.Background(), a.app.Session.ParentID)
+			if err != nil {
+				slog.Error("Failed to get parent session", "error", err)
+				return a, toast.NewErrorToast("Failed to get parent session")
+			}
+			a.app.Session = parentSession
+			a.app, cmd = a.app.SendCommand(context.Background(), msg.Command, msg.Args)
+			cmds = append(cmds, tea.Sequence(
+				util.CmdHandler(app.SessionSelectedMsg(parentSession)),
+				cmd,
+			))
+		} else {
+			a.app, cmd = a.app.SendCommand(context.Background(), msg.Command, msg.Args)
+			cmds = append(cmds, cmd)
+		}
 	case app.SendShell:
 		// If we're in a child session, switch back to parent before sending prompt
 		if a.app.Session.ParentID != "" {