compose-ps
Lists Docker Compose services with structured state and status information.
This record as markdown: /tools/io-github-dave-london-lint/compose-ps.md
What compose-ps does on Lint
AI agents call compose-ps to retrieve information from Lint without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why compose-ps is rated Low
This tool retrieves structured information about running Docker Compose services. It performs a non-destructive query similar to 'docker-compose ps', returning status data without creating, modifying, or deleting resources. The blast radius of misuse is minimal—worst case an agent gains visibility into deployed services, which is a Read-level risk.
From the tool's definition Tool name 'compose-ps' and description 'Lists Docker Compose services with structured state and status information' indicate a query/inspection operation that retrieves and reports on existing container state without modification.
Attacks that exploit this kind of access
The rule that runs compose-ps safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Lint, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For compose-ps, this is the rule to start with:
compose-ps is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Lint, apply this rule, and every compose-ps call is checked against it from then on.
Questions about compose-ps
Lists Docker Compose services with structured state and status information. It is categorised as a Read tool in the Lint MCP Server, which means it retrieves data without modifying state.
Register the Lint MCP server in PolicyLayer and add a rule for compose-ps: 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 Lint. Nothing to install.
compose-ps is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the compose-ps 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.
Set action: deny in the PolicyLayer policy for compose-ps. 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.
compose-ps is provided by the Lint MCP server (Dave-London/Pare). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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