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247 lines
6.6 KiB
Text
247 lines
6.6 KiB
Text
---
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title: "CLI Configuration"
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description: "Configure default settings for the Arc CLI with cli.toml"
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---
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Arc loads CLI defaults from `~/.arc/cli.toml` so you don't have to pass common flags every time. The file is optional — if it doesn't exist, built-in defaults are used.
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## File location
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The default path is `~/.arc/cli.toml`. Arc silently skips loading if the file is missing.
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## Precedence
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CLI flags always take the highest priority:
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1. **CLI flags** — always win
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2. **`cli.toml`** — used when no flag is provided
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3. **Built-in defaults** — used when neither flag nor config is set
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## Full example
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```toml title="cli.toml"
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verbose = true
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mode = "server"
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[server]
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base_url = "https://arc.example.com:3000"
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[server.tls]
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cert = "~/.arc/tls/client.crt"
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key = "~/.arc/tls/client.key"
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ca = "~/.arc/tls/ca.crt"
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[exec]
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provider = "anthropic"
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model = "claude-opus-4-6"
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permissions = "read-write"
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output_format = "text"
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[llm]
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model = "claude-sonnet-4-5"
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[log]
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level = "info"
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[git.author]
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name = "arc-bot"
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email = "arc-bot@company.com"
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[pull_request]
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enabled = true
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[mcp_servers.filesystem]
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type = "stdio"
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command = ["npx", "-y", "@modelcontextprotocol/server-filesystem", "/workspace"]
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startup_timeout_secs = 15
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tool_timeout_secs = 90
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[mcp_servers.filesystem.env]
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NODE_ENV = "production"
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[mcp_servers.sentry]
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type = "http"
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url = "https://mcp.sentry.dev/mcp"
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[mcp_servers.sentry.headers]
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Authorization = "Bearer sk-xxx"
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```
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All fields are optional. You can include just the sections and keys you want to override.
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## `verbose`
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Enable verbose output by default for `arc run start` and `arc doctor`, without passing `-v` every time.
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| Value | Description |
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|---|---|
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| `true` | Verbose output on by default |
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| `false` | Normal output (default) |
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The `-v` / `--verbose` CLI flag always takes effect regardless of this setting.
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## `[exec]` section
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Defaults for `arc exec` sessions.
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| Key | Description | Values | Default |
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|---|---|---|---|
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| `provider` | LLM provider | `"anthropic"`, `"openai"`, `"gemini"`, etc. | `"anthropic"` |
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| `model` | Model name | Any model ID from `arc model list` | Per provider |
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| `permissions` | Tool permission level | `"read-only"`, `"read-write"`, `"full"` | `"read-write"` |
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| `output_format` | Output format | `"text"`, `"json"` | `"text"` |
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### Permission levels
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- **`read-only`** — auto-approves read tools (`read_file`, `grep`, `glob`, `list_dir`) and subagent tools
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- **`read-write`** — adds write tools (`write_file`, `edit_file`, `apply_patch`)
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- **`full`** — allows all tools including shell commands
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Tools outside the permission level are interactively prompted (if a TTY is present) or denied (with `--auto-approve`).
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### Output formats
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- **`text`** — human-readable terminal output
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- **`json`** — NDJSON event stream
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## `[llm]` section
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Defaults for `arc llm prompt` and `arc llm chat`.
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| Key | Description | Values | Default |
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|---|---|---|---|
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| `model` | Model name | Any model ID from `arc model list` | Per provider |
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<Note>
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The `[llm]` section only sets the default model. Use `[exec]` to configure provider, permissions, and output format for `arc exec`.
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</Note>
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## `[log]` section
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Configure the default log level. Precedence: `ARC_LOG` env var > `--debug` flag > `[log]` level > `"info"`.
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| Key | Description | Values | Default |
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|---|---|---|---|
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| `level` | Log level | `"error"`, `"warn"`, `"info"`, `"debug"`, `"trace"` | `"info"` |
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## `[git]` section
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### `[git.author]`
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Customize the git author identity used for checkpoint commits. Overrides the server default when set.
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| Key | Description | Default |
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|---|---|---|
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| `name` | Git author name | `"arc"` |
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| `email` | Git author email | `"arc@local"` |
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## `mode`
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Controls whether commands run in-process or delegate to a running Arc API server.
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| Value | Description |
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|---|---|
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| `"standalone"` | Execute locally (default) |
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| `"server"` | Delegate to an Arc API server |
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Override with the `--mode` CLI flag:
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```bash
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arc --mode server models list
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```
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## `[server]` section
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Configuration for server mode.
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| Key | Description | Default |
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|---|---|---|
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| `base_url` | Server URL | `"http://localhost:3000"` |
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Override the URL with the `--server-url` CLI flag:
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```bash
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arc --mode server --server-url https://arc.example.com:3000 models list
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```
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### `[server.tls]` section
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Optional mTLS configuration for authenticating with the server. When present, the CLI presents a client certificate during the TLS handshake.
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| Key | Description |
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|---|---|
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| `cert` | Path to client certificate PEM file |
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| `key` | Path to client private key PEM file |
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| `ca` | Path to CA certificate PEM file (to verify the server) |
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Paths support `~/` expansion. Example:
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```toml title="cli.toml"
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[server.tls]
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cert = "~/.arc/tls/client.crt"
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key = "~/.arc/tls/client.key"
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ca = "~/.arc/tls/ca.crt"
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```
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## `[pull_request]`
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Enable auto-PR globally so workflows open a GitHub pull request on successful completion — even when running with a `.dot` file instead of a `run.toml`.
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```toml title="cli.toml"
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[pull_request]
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enabled = true
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```
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| Key | Description | Default |
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|---|---|---|
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| `enabled` | Automatically create a PR after successful runs | `false` |
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Precedence: `run.toml` > `cli.toml` > `server.toml` > built-in default (`false`).
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## `[mcp_servers]` section
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Configure [MCP servers](/agents/mcp) to connect to during `arc exec` sessions. Each server is a named TOML table under `[mcp_servers]`.
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### Stdio transport
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Spawn a local process and communicate over stdin/stdout:
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```toml title="cli.toml"
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[mcp_servers.filesystem]
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type = "stdio"
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command = ["npx", "-y", "@modelcontextprotocol/server-filesystem", "/workspace"]
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startup_timeout_secs = 15
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tool_timeout_secs = 90
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[mcp_servers.filesystem.env]
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NODE_ENV = "production"
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```
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| Key | Description | Default |
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| `type` | Must be `"stdio"` | — |
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| `command` | Array: executable + arguments | — |
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| `env` | Additional environment variables for the child process | `{}` |
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| `startup_timeout_secs` | Max seconds for the MCP handshake | `10` |
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| `tool_timeout_secs` | Max seconds for a single tool call | `60` |
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### HTTP transport
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Connect to a remote MCP server over Streamable HTTP:
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```toml title="cli.toml"
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[mcp_servers.sentry]
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type = "http"
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url = "https://mcp.sentry.dev/mcp"
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[mcp_servers.sentry.headers]
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Authorization = "Bearer sk-xxx"
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```
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| Key | Description | Default |
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| `type` | Must be `"http"` | — |
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| `url` | The MCP server endpoint URL | — |
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| `headers` | Optional HTTP headers (e.g., for authentication) | `{}` |
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| `startup_timeout_secs` | Max seconds for the MCP handshake | `10` |
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| `tool_timeout_secs` | Max seconds for a single tool call | `60` |
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