bisect

Binary search for the commit that introduced a bug. Returns structured data with action taken, current commit, remaining steps estimate, and result.

SERVERDocker SOURCE@paretools/docker

High RISK CLASS

Category Execute

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/bisect.md

WHAT IT DOES

What bisect does on Docker

AI agents invoke bisect 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.

RISK

Why bisect is rated High

This tool runs git bisect operations, executing git commands to navigate commit history. It triggers external operations (checking out commits, running tests) whose effects depend on arguments. It's not purely read-only since bisect checks out different commits and may run test scripts, but it's not destructive or financial.

From the tool's definition Binary search for the commit that introduced a bug... action taken, current commit, remaining steps estimate

Attacks that exploit this kind of access

RECOMMENDED RULE

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

bisect Rate-limited

bisect 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "bisect": {
      "limits": [
        {
          "counter": "bisect_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about bisect

What does the bisect tool do? +

Binary search for the commit that introduced a bug. Returns structured data with action taken, current commit, remaining steps estimate, and result. 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.

How do I enforce a policy on bisect? +

Register the Docker MCP server in PolicyLayer and add a rule for bisect: 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 bisect? +

bisect is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit bisect? +

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

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

bisect 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.

KEEP EXPLORING

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