stash

Pushes, pops, applies, drops, shows, or clears stash entries. Returns structured result with action, success, message, and stash reference.

SERVERDocker SOURCE@paretools/docker

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-dave-london-docker/stash.md

WHAT IT DOES

What stash does on Docker

AI agents use stash to create or update resources in Docker, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Docker environment.

RISK

Why stash is rated Medium

Stash operations primarily write/modify version control state (push saves changes, pop/apply restores them, clear/drop removes entries). While 'drop' and 'clear' could be considered destructive for stash entries, stash is generally a temporary holding area and the overall tool is primarily a write/state-management operation.

From the tool's definition Pushes, pops, applies, drops, shows, or clears stash entries

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs stash 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 stash, this is the rule to start with:

stash Rate-limited

stash stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "stash": {
      "limits": [
        {
          "counter": "stash_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Docker, apply this rule, and every stash call is checked against it from then on.

FAQ

Questions about stash

What does the stash tool do? +

Pushes, pops, applies, drops, shows, or clears stash entries. Returns structured result with action, success, message, and stash reference. It is categorised as a Write tool in the Docker MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on stash? +

Register the Docker MCP server in PolicyLayer and add a rule for stash: 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.

What risk level is stash? +

stash is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit stash? +

Yes. Add a rate_limit block to the stash 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 stash completely? +

Set action: deny in the PolicyLayer policy for stash. 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 stash? +

stash 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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