patch_string

Patch string to apply (string, required)

SERVERGitHub SOURCEoci:ghcr.io/aifity/omnigit-mcp:0.5.0

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-aifity-omnigit-mcp/patch-string.md

WHAT IT DOES

What patch_string does on GitHub

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

RISK

Why patch_string is rated Medium

The tool applies a patch string, which modifies data (likely code or file content) in a reversible manner typical of Write operations. While the description lacks detail, the function name and GitHub server context indicate content modification rather than deletion or code execution. Severity is medium due to potential scope of changes to repository files, but confidence is moderate due to incomplete description.

From the tool's definition Tool name 'patch_string' combined with GitHub server context indicates modifying code/content through patch application.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs patch_string safely

PolicyLayer is an MCP gateway: it sits between your AI agents and GitHub, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For patch_string, this is the rule to start with:

patch_string Rate-limited

patch_string 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": {
    "patch_string": {
      "limits": [
        {
          "counter": "patch_string_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 GitHub, apply this rule, and every patch_string call is checked against it from then on.

FAQ

Questions about patch_string

What does the patch_string tool do? +

Patch string to apply (string, required). It is categorised as a Write tool in the GitHub MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on patch_string? +

Register the GitHub MCP server in PolicyLayer and add a rule for patch_string: 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 GitHub. Nothing to install.

What risk level is patch_string? +

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

Can I rate-limit patch_string? +

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

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

patch_string is provided by the GitHub MCP server (oci:ghcr.io/aifity/omnigit-mcp:0.5.0). 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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