format_code

Format code in the project. Auto-detects: gofmt, prettier, ruff/black, cargo fmt.

SERVERYaver SOURCEyaver-cli

Low RISK CLASS

Category Read

Parameters 20 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-kivanccakmak-yaver/format-code.md

WHAT IT DOES

What format_code does on Yaver

AI agents call format_code to retrieve information from Yaver without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Parameter	Type	Required	Description
`tool`	string	—	Custom format command (auto-detected if empty)
`directory`	string	—	Project directory

Parameters from the server's own tool schema.

RISK

Why format_code is rated Low

Even though format_code only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Risk signalsAccepts file system path (directory)

Attacks that exploit this kind of access

RECOMMENDED RULE

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

format_code Allowed

format_code is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "format_code": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about format_code

What does the format_code tool do? +

Format code in the project. Auto-detects: gofmt, prettier, ruff/black, cargo fmt. It is categorised as a Read tool in the Yaver MCP Server, which means it retrieves data without modifying state.

What parameters does format_code accept? +

format_code accepts 2 parameters: tool, directory. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on format_code? +

Register the Yaver MCP server in PolicyLayer and add a rule for format_code: 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 format_code? +

format_code is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit format_code? +

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

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

format_code 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.

KEEP EXPLORING

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