package-init
Initializes a new Swift package and returns structured result with created files.
This record as markdown: /tools/io-github-dave-london-docker/package-init.md
What package-init does on Docker
AI agents invoke package-init to trigger actions in Docker. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why package-init is rated High
This tool creates a new Swift package structure, which involves executing an initialization process (likely `swift package init`) that generates files and directories. While it creates files (Write), the primary action is executing a package initialization command whose effects depend on the working context. The severity is medium as it creates files in the filesystem but is not immediately destructive or financial.
From the tool's definition Initializes a new Swift package and returns structured result with created files
Attacks that exploit this kind of access
The rule that runs package-init safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Docker, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For package-init, this is the rule to start with:
package-init stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Docker, apply this rule, and every package-init call is checked against it from then on.
Questions about package-init
Initializes a new Swift package and returns structured result with created files. It is categorised as a Execute tool in the Docker MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Docker MCP server in PolicyLayer and add a rule for package-init: 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 Docker. Nothing to install.
package-init is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the package-init 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 package-init. 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.
package-init is provided by the Docker MCP server (@paretools/docker). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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