4dd11b3 · crush · git.iko.soy

README.md+22

compare with main

unifiedsplit

@@ -275,6 +275,7 @@ using `$(echo $VAR)` syntax.

275 "args": ["/path/to/mcp-server.js"],

276 "timeout": 120,

277 "disabled": false,

278+ "disabled_tools": ["some-tool-name"],

278 "env": {

279 "env": {

279 "NODE_ENV": "production"

280 "NODE_ENV": "production"

280 }

281 }

@@ -284,6 +285,7 @@ using `$(echo $VAR)` syntax.

284 "url": "https://api.githubcopilot.com/mcp/",

285 "url": "https://api.githubcopilot.com/mcp/",

285 "timeout": 120,

286 "timeout": 120,

286 "disabled": false,

287 "disabled": false,

288+ "disabled_tools": ["create_issue", "create_pull_request"],

287 "headers": {

289 "headers": {

288 "Authorization": "Bearer $GH_PAT"

290 "Authorization": "Bearer $GH_PAT"

289 }

291 }

@@ -335,6 +337,26 @@ permissions. Use this with care.

335You can also skip all permission prompts entirely by running Crush with the

337You can also skip all permission prompts entirely by running Crush with the

336`--yolo` flag. Be very, very careful with this feature.

338`--yolo` flag. Be very, very careful with this feature.

337

339

340+### Disabling Built-In Tools

341+

342+If you'd like to prevent Crush from using certain built-in tools entirely, you

343+can disable them via the `options.disabled_tools` list. Disabled tools are

344+completely hidden from the agent.

345+

346+```json

347+{

348+ "$schema": "https://charm.land/crush.json",

349+ "options": {

350+ "disabled_tools": [

351+ "bash",

352+ "sourcegraph"

353+ ]

354+ }

355+}

356+```

357+

358+To disable tools from MCP servers, see the [MCP config section](#mcps).

359+

338### Initialization

360### Initialization

339

361

340When you initialize a project, Crush analyzes your codebase and creates

362When you initialize a project, Crush analyzes your codebase and creates

go.mod+2−2

@@ -6,7 +6,7 @@ require (

6 charm.land/bubbles/v2 v2.0.0-rc.1

7 charm.land/bubbletea/v2 v2.0.0-rc.2.0.20251202162339-5fa38b798f16

8 charm.land/fantasy v0.5.1

9− charm.land/lipgloss/v2 v2.0.0-beta.3.0.20251119143523-0334bb4562ca

9+ charm.land/lipgloss/v2 v2.0.0-beta.3.0.20251205162909-7869489d8971

10 charm.land/x/vcr v0.1.1

11 github.com/JohannesKaufmann/html-to-markdown v1.6.0

12 github.com/MakeNowJust/heredoc v1.0.0

@@ -21,7 +21,7 @@ require (

21 github.com/charmbracelet/fang v0.4.4

22 github.com/charmbracelet/glamour/v2 v2.0.0-20251106195642-800eb8175930

23 github.com/charmbracelet/log/v2 v2.0.0-20251106192421-eb64aaa963a0

24− github.com/charmbracelet/ultraviolet v0.0.0-20251202162030-ecc8c1ae4b2b

24+ github.com/charmbracelet/ultraviolet v0.0.0-20251205161215-1948445e3318

25 github.com/charmbracelet/x/ansi v0.11.2

26 github.com/charmbracelet/x/exp/charmtone v0.0.0-20250708181618-a60a724ba6c3

27 github.com/charmbracelet/x/exp/golden v0.0.0-20250806222409-83e3a29d542f

go.sum+4

@@ -6,6 +6,8 @@ charm.land/fantasy v0.5.1 h1:Svi/UpI4/DwVjTqNYceDXoJJYn6SVEM5dnLH92UBiEs=

6charm.land/fantasy v0.5.1/go.mod h1:SPOsnIlkBKnhw2Wnasv+wZ82EmCMIGesx0je3tgR6+M=

7charm.land/lipgloss/v2 v2.0.0-beta.3.0.20251119143523-0334bb4562ca h1:6bVc8OFotCS4sS7HKqxTudP7yn8Y0ODR6df2pdlY/+s=

8charm.land/lipgloss/v2 v2.0.0-beta.3.0.20251119143523-0334bb4562ca/go.mod h1:XSJjv7DaH4zd1Y27kZis295RkEj9OFR9zh2WffQQsKQ=

9+charm.land/lipgloss/v2 v2.0.0-beta.3.0.20251205162909-7869489d8971 h1:xZFcNsJMiIDbFtWRyDmkKNk1sjojfaom4Zoe0cyH/8c=

10+charm.land/lipgloss/v2 v2.0.0-beta.3.0.20251205162909-7869489d8971/go.mod h1:i61Y3FmdbcBNSKa+pKB3DaE4uVQmBLMs/xlvRyHcXAE=

9charm.land/x/vcr v0.1.1 h1:PXCFMUG0rPtyk35rhfzYCJEduOzWXCIbrXTFq4OF/9Q=

11charm.land/x/vcr v0.1.1 h1:PXCFMUG0rPtyk35rhfzYCJEduOzWXCIbrXTFq4OF/9Q=

10charm.land/x/vcr v0.1.1/go.mod h1:eByq2gqzWvcct/8XE2XO5KznoWEBiXH56+y2gphbltM=

12charm.land/x/vcr v0.1.1/go.mod h1:eByq2gqzWvcct/8XE2XO5KznoWEBiXH56+y2gphbltM=

11cloud.google.com/go v0.116.0 h1:B3fRrSDkLRt5qSHWe40ERJvhvnQwdZiHu0bJOpldweE=

13cloud.google.com/go v0.116.0 h1:B3fRrSDkLRt5qSHWe40ERJvhvnQwdZiHu0bJOpldweE=

@@ -100,6 +102,8 @@ github.com/charmbracelet/log/v2 v2.0.0-20251106192421-eb64aaa963a0 h1:lxHzxsHd4P

100github.com/charmbracelet/log/v2 v2.0.0-20251106192421-eb64aaa963a0/go.mod h1:Q7oMtlboDPnnrYiJDXNwdWmJblOmuOnycPKczlVju6I=

102github.com/charmbracelet/log/v2 v2.0.0-20251106192421-eb64aaa963a0/go.mod h1:Q7oMtlboDPnnrYiJDXNwdWmJblOmuOnycPKczlVju6I=

101github.com/charmbracelet/ultraviolet v0.0.0-20251202162030-ecc8c1ae4b2b h1:jY1J0PcfetoB1uJ+w8rd86gUFSpKpJJI35gnfpKF5hg=

103github.com/charmbracelet/ultraviolet v0.0.0-20251202162030-ecc8c1ae4b2b h1:jY1J0PcfetoB1uJ+w8rd86gUFSpKpJJI35gnfpKF5hg=

102github.com/charmbracelet/ultraviolet v0.0.0-20251202162030-ecc8c1ae4b2b/go.mod h1:Y6kE2GzHfkyQQVCSL9r2hwokSrIlHGzZG+71+wDYSZI=

104github.com/charmbracelet/ultraviolet v0.0.0-20251202162030-ecc8c1ae4b2b/go.mod h1:Y6kE2GzHfkyQQVCSL9r2hwokSrIlHGzZG+71+wDYSZI=

105+github.com/charmbracelet/ultraviolet v0.0.0-20251205161215-1948445e3318 h1:OqDqxQZliC7C8adA7KjelW3OjtAxREfeHkNcd66wpeI=

106+github.com/charmbracelet/ultraviolet v0.0.0-20251205161215-1948445e3318/go.mod h1:Y6kE2GzHfkyQQVCSL9r2hwokSrIlHGzZG+71+wDYSZI=

103github.com/charmbracelet/x/ansi v0.11.2 h1:XAG3FSjiVtFvgEgGrNBkCNNYrsucAt8c6bfxHyROLLs=

107github.com/charmbracelet/x/ansi v0.11.2 h1:XAG3FSjiVtFvgEgGrNBkCNNYrsucAt8c6bfxHyROLLs=

104github.com/charmbracelet/x/ansi v0.11.2/go.mod h1:9tY2bzX5SiJCU0iWyskjBeI2BRQfvPqI+J760Mjf+Rg=

108github.com/charmbracelet/x/ansi v0.11.2/go.mod h1:9tY2bzX5SiJCU0iWyskjBeI2BRQfvPqI+J760Mjf+Rg=

105github.com/charmbracelet/x/exp/charmtone v0.0.0-20250708181618-a60a724ba6c3 h1:1xwHZg6eMZ9Wv5TE1UGub6ARubyOd1Lo5kPUI/6VL50=

109github.com/charmbracelet/x/exp/charmtone v0.0.0-20250708181618-a60a724ba6c3 h1:1xwHZg6eMZ9Wv5TE1UGub6ARubyOd1Lo5kPUI/6VL50=

internal/agent/coordinator.go+6

@@ -388,6 +388,12 @@ func (c *coordinator) buildTools(ctx context.Context, agent config.Agent) ([]fan

388 }

389

390 for _, tool := range tools.GetMCPTools(c.permissions, c.cfg.WorkingDir()) {

391+ // Check MCP-specific disabled tools.

392+ if mcpCfg, ok := c.cfg.MCP[tool.MCP()]; ok {

393+ if slices.Contains(mcpCfg.DisabledTools, tool.MCPToolName()) {

394+ continue

395+ }

396+ }

391 if agent.AllowedMCP == nil {

397 if agent.AllowedMCP == nil {

392 // No MCP restrictions

398 // No MCP restrictions

393 filteredTools = append(filteredTools, tool)

399 filteredTools = append(filteredTools, tool)

internal/config/config.go+9−8

@@ -144,13 +144,14 @@ const (

144)

145

146type MCPConfig struct {

147− Command string `json:"command,omitempty" jsonschema:"description=Command to execute for stdio MCP servers,example=npx"`

147+ Command string `json:"command,omitempty" jsonschema:"description=Command to execute for stdio MCP servers,example=npx"`

148− Env map[string]string `json:"env,omitempty" jsonschema:"description=Environment variables to set for the MCP server"`

148+ Env map[string]string `json:"env,omitempty" jsonschema:"description=Environment variables to set for the MCP server"`

149− Args []string `json:"args,omitempty" jsonschema:"description=Arguments to pass to the MCP server command"`

149+ Args []string `json:"args,omitempty" jsonschema:"description=Arguments to pass to the MCP server command"`

150− Type MCPType `json:"type" jsonschema:"required,description=Type of MCP connection,enum=stdio,enum=sse,enum=http,default=stdio"`

150+ Type MCPType `json:"type" jsonschema:"required,description=Type of MCP connection,enum=stdio,enum=sse,enum=http,default=stdio"`

151− URL string `json:"url,omitempty" jsonschema:"description=URL for HTTP or SSE MCP servers,format=uri,example=http://localhost:3000/mcp"`

151+ URL string `json:"url,omitempty" jsonschema:"description=URL for HTTP or SSE MCP servers,format=uri,example=http://localhost:3000/mcp"`

152− Disabled bool `json:"disabled,omitempty" jsonschema:"description=Whether this MCP server is disabled,default=false"`

152+ Disabled bool `json:"disabled,omitempty" jsonschema:"description=Whether this MCP server is disabled,default=false"`

153+ DisabledTools []string `json:"disabled_tools,omitempty" jsonschema:"description=List of tools from this MCP server to disable,example=get-library-doc"`

153− Timeout int `json:"timeout,omitempty" jsonschema:"description=Timeout in seconds for MCP server connections,default=15,example=30,example=60,example=120"`

154+ Timeout int `json:"timeout,omitempty" jsonschema:"description=Timeout in seconds for MCP server connections,default=15,example=30,example=60,example=120"`

154

155

155 // TODO: maybe make it possible to get the value from the env

156 // TODO: maybe make it possible to get the value from the env

156 Headers map[string]string `json:"headers,omitempty" jsonschema:"description=HTTP headers for HTTP/SSE MCP servers"`

157 Headers map[string]string `json:"headers,omitempty" jsonschema:"description=HTTP headers for HTTP/SSE MCP servers"`

@@ -221,7 +222,7 @@ type Options struct {

221 DebugLSP bool `json:"debug_lsp,omitempty" jsonschema:"description=Enable debug logging for LSP servers,default=false"`

222 DebugLSP bool `json:"debug_lsp,omitempty" jsonschema:"description=Enable debug logging for LSP servers,default=false"`

222 DisableAutoSummarize bool `json:"disable_auto_summarize,omitempty" jsonschema:"description=Disable automatic conversation summarization,default=false"`

223 DisableAutoSummarize bool `json:"disable_auto_summarize,omitempty" jsonschema:"description=Disable automatic conversation summarization,default=false"`

223 DataDirectory string `json:"data_directory,omitempty" jsonschema:"description=Directory for storing application data (relative to working directory),default=.crush,example=.crush"` // Relative to the cwd

224 DataDirectory string `json:"data_directory,omitempty" jsonschema:"description=Directory for storing application data (relative to working directory),default=.crush,example=.crush"` // Relative to the cwd

224− DisabledTools []string `json:"disabled_tools" jsonschema:"description=Tools to disable"`

225+ DisabledTools []string `json:"disabled_tools,omitempty" jsonschema:"description=List of built-in tools to disable and hide from the agent,example=bash,example=sourcegraph"`

225 DisableProviderAutoUpdate bool `json:"disable_provider_auto_update,omitempty" jsonschema:"description=Disable providers auto-update,default=false"`

226 DisableProviderAutoUpdate bool `json:"disable_provider_auto_update,omitempty" jsonschema:"description=Disable providers auto-update,default=false"`

226 Attribution *Attribution `json:"attribution,omitempty" jsonschema:"description=Attribution settings for generated content"`

227 Attribution *Attribution `json:"attribution,omitempty" jsonschema:"description=Attribution settings for generated content"`

227 DisableMetrics bool `json:"disable_metrics,omitempty" jsonschema:"description=Disable sending metrics,default=false"`

228 DisableMetrics bool `json:"disable_metrics,omitempty" jsonschema:"description=Disable sending metrics,default=false"`

internal/tui/components/chat/editor/editor.go+6−1

@@ -41,6 +41,7 @@ type Editor interface {

41 SetSession(session session.Session) tea.Cmd

42 IsCompletionsOpen() bool

43 HasAttachments() bool

44+ IsEmpty() bool

44 Cursor() *tea.Cursor

45 Cursor() *tea.Cursor

45}

46}

46

47

@@ -261,7 +262,7 @@ func (m *editorCmp) Update(msg tea.Msg) (util.Model, tea.Cmd) {

261 curIdx := m.textarea.Width()*cur.Y + cur.X

262 curIdx := m.textarea.Width()*cur.Y + cur.X

262 switch {

263 switch {

263 // Open command palette when "/" is pressed on empty prompt

264 // Open command palette when "/" is pressed on empty prompt

264− case msg.String() == "/" && len(strings.TrimSpace(m.textarea.Value())) == 0:

265+ case msg.String() == "/" && m.IsEmpty():

265 return m, util.CmdHandler(dialogs.OpenDialogMsg{

266 return m, util.CmdHandler(dialogs.OpenDialogMsg{

266 Model: commands.NewCommandDialog(m.session.ID),

267 Model: commands.NewCommandDialog(m.session.ID),

267 })

268 })

@@ -542,6 +543,10 @@ func (c *editorCmp) HasAttachments() bool {

542 return len(c.attachments) > 0

543 return len(c.attachments) > 0

543}

544}

544

545

546+func (c *editorCmp) IsEmpty() bool {

547+ return strings.TrimSpace(c.textarea.Value()) == ""

548+}

549+

545func normalPromptFunc(info textarea.PromptInfo) string {

550func normalPromptFunc(info textarea.PromptInfo) string {

546 t := styles.CurrentTheme()

551 t := styles.CurrentTheme()

547 if info.LineNumber == 0 {

552 if info.LineNumber == 0 {

internal/tui/page/chat/chat.go+4−3

@@ -525,9 +525,7 @@ func (p *chatPage) View() string {

525 )

526 layers = append(layers, lipgloss.NewLayer(details).X(1).Y(1))

527 }

528− canvas := lipgloss.NewCanvas(

528+ canvas := lipgloss.NewCompositor(layers...)

529− layers...,

530− )

531 return canvas.Render()

529 return canvas.Render()

532}

530}

533

531

@@ -1024,6 +1022,9 @@ func (p *chatPage) Help() help.KeyMap {

1024 key.WithKeys("ctrl+p"),

1022 key.WithKeys("ctrl+p"),

1025 key.WithHelp("ctrl+p", "commands"),

1023 key.WithHelp("ctrl+p", "commands"),

1026 )

1024 )

1025+ if p.focusedPane == PanelTypeEditor && p.editor.IsEmpty() {

1026+ commandsBinding.SetHelp("/ or ctrl+p", "commands")

1027+ }

1027 modelsBinding := key.NewBinding(

1028 modelsBinding := key.NewBinding(

1028 key.WithKeys("ctrl+m", "ctrl+l"),

1029 key.WithKeys("ctrl+m", "ctrl+l"),

1029 key.WithHelp("ctrl+l", "models"),

1030 key.WithHelp("ctrl+l", "models"),

internal/tui/tui.go+11−21

@@ -593,22 +593,15 @@ func (a *appModel) View() tea.View {

593 view.MouseMode = tea.MouseModeCellMotion

594 view.BackgroundColor = t.BgBase

595 if a.wWidth < 25 || a.wHeight < 15 {

596− view.SetContent(

597− lipgloss.NewCanvas(

598− lipgloss.NewLayer(

599− t.S().Base.Width(a.wWidth).Height(a.wHeight).

596+ view.Content = t.S().Base.Width(a.wWidth).Height(a.wHeight).

600− Align(lipgloss.Center, lipgloss.Center).

597+ Align(lipgloss.Center, lipgloss.Center).

601− Render(

598+ Render(t.S().Base.

602− t.S().Base.

603− Padding(1, 4).

599+ Padding(1, 4).

604− Foreground(t.White).

600+ Foreground(t.White).

605− BorderStyle(lipgloss.RoundedBorder()).

601+ BorderStyle(lipgloss.RoundedBorder()).

606− BorderForeground(t.Primary).

602+ BorderForeground(t.Primary).

607− Render("Window too small!"),

603+ Render("Window too small!"),

608− ),

609− ),

610− ).Render(),

611− )

604+ )

612 return view

605 return view

613 }

606 }

614

607

@@ -659,11 +652,8 @@ func (a *appModel) View() tea.View {

659 )

652 )

660 }

653 }

661

654

662− canvas := lipgloss.NewCanvas(

655+ comp := lipgloss.NewCompositor(layers...)

663− layers...,

664− )

665−

666− view.Content = canvas.Render()

656+ view.Content = comp.Render()

667 view.Cursor = cursor

657 view.Cursor = cursor

668

658

669 if a.sendProgressBar && a.app != nil && a.app.AgentCoordinator != nil && a.app.AgentCoordinator.IsBusy() {

659 if a.sendProgressBar && a.app != nil && a.app.AgentCoordinator != nil && a.app.AgentCoordinator.IsBusy() {

schema.json+17−6

@@ -229,6 +229,16 @@

229 "description": "Whether this MCP server is disabled",

230 "default": false

231 },

232+ "disabled_tools": {

233+ "items": {

234+ "type": "string",

235+ "examples": [

236+ "get-library-doc"

237+ ]

238+ },

239+ "type": "array",

240+ "description": "List of tools from this MCP server to disable"

241+ },

232 "timeout": {

242 "timeout": {

233 "type": "integer",

243 "type": "integer",

234 "description": "Timeout in seconds for MCP server connections",

244 "description": "Timeout in seconds for MCP server connections",

@@ -386,10 +396,14 @@

386 },

396 },

387 "disabled_tools": {

397 "disabled_tools": {

388 "items": {

398 "items": {

389− "type": "string"

399+ "type": "string",

400+ "examples": [

401+ "bash",

402+ "sourcegraph"

403+ ]

390 },

404 },

391 "type": "array",

405 "type": "array",

392− "description": "Tools to disable"

406+ "description": "List of built-in tools to disable and hide from the agent"

393 },

407 },

394 "disable_provider_auto_update": {

408 "disable_provider_auto_update": {

395 "type": "boolean",

409 "type": "boolean",

@@ -418,10 +432,7 @@

418 }

432 }

419 },

433 },

420 "additionalProperties": false,

434 "additionalProperties": false,

421− "type": "object",

435+ "type": "object"

422− "required": [

423− "disabled_tools"

424− ]

425 },

436 },

426 "Permissions": {

437 "Permissions": {

427 "properties": {

438 "properties": {