config-list

List config variables and their values in a Jujutsu (jj) repository. Shows both user and repo-level configs by default. Parameters: name (Optional name of specific config option to list), includeDefaults (Optional flag to include default values), includeOverridden (Optional flag to include overri...

Server Jj jj-mcp-server
Category Read
Risk class Low
Parameters 00 required

What config-list does on Jj

AI agents call config-list to retrieve information from Jj without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Why config-list needs a policy

This tool only retrieves and displays configuration information from a Jujutsu repository. It performs no writes, deletions, or external command execution. The parameters (name, includeDefaults, includeOverridden, user, repo, repoPath, cwd) are all filtering/display options for the read operation.

From the tool's definition Tool description states it 'List config variables and their values' with parameters for filtering what to display. The verb 'list' and function of displaying/querying configuration indicates read-only retrieval with no modification or execution capability.

Risk signalsAdmin/system-level operation

Questions about config-list

What does the config-list tool do? +

List config variables and their values in a Jujutsu (jj) repository. Shows both user and repo-level configs by default. Parameters: name (Optional name of specific config option to list), includeDefaults (Optional flag to include default values), includeOverridden (Optional flag to include overridden values), user (Optional flag to only show user-level config), repo (Optional flag to only show repo-level config), repoPath (Optional path to repo root or working directory), cwd (Optional working directory to run the command in). It is categorised as a Read tool in the Jj MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on config-list? +

Register the Jj MCP server in PolicyLayer and add a rule for config-list: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Jj. Nothing to install.

What risk level is config-list? +

config-list is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit config-list? +

Yes. Add a rate_limit block to the config-list rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block config-list completely? +

Set action: deny in the PolicyLayer policy for config-list. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides config-list? +

config-list is provided by the Jj MCP server (jj-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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