create_gist

Create a GitHub Gist to share code snippets.

SERVERYaver SOURCEyaver-cli

Medium RISK CLASS

Category Write

Parameters 41 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-kivanccakmak-yaver/create-gist.md

WHAT IT DOES

What create_gist does on Yaver

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

Parameter	Type	Required	Description
`public`	boolean	—	Public gist (default: false)
`content`	string	Yes	Code/text content
`filename`	string	—	Filename (default: snippet.txt)
`description`	string	—

Parameters from the server's own tool schema.

RISK

Why create_gist is rated Medium

Creating a GitHub Gist is a write operation that generates a new, remotely-stored artifact. While reversible (gists can be deleted), it commits data to an external service and could expose sensitive code snippets if misused by an agent without proper context awareness. This is Write rather than Execute because the tool itself does not run arbitrary code—it only creates a container for code.

From the tool's definition Tool description: 'Create a GitHub Gist to share code snippets.' The verb 'Create' indicates the tool produces new data (a GitHub Gist resource) that persists remotely.

Risk signalsAccepts file system path (filename) · Accepts raw HTML/template content (content)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_gist safely

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

create_gist Rate-limited

create_gist 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": {
    "create_gist": {
      "limits": [
        {
          "counter": "create_gist_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 Yaver, apply this rule, and every create_gist call is checked against it from then on.

FAQ

Questions about create_gist

What does the create_gist tool do? +

Create a GitHub Gist to share code snippets. It is categorised as a Write tool in the Yaver MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does create_gist accept? +

create_gist accepts 4 parameters: public, content, filename, description. Required: content. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on create_gist? +

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

What risk level is create_gist? +

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

Can I rate-limit create_gist? +

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

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

create_gist is provided by the Yaver MCP server (yaver-cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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