write

Write to file. Auto-selects client.

SERVERClaude C2 SOURCE0xyg3n/claude-c2

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/0xyg3n-claude-c2/write.md

WHAT IT DOES

What write does on Claude C2

AI agents use write to create or update resources in Claude C2, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Claude C2 environment.

RISK

Why write is rated Medium

This tool creates or modifies file content, which is a reversible Write operation. Severity is medium because unauthorized file writes could compromise system integrity, inject malicious code, or overwrite important configurations, but the impact depends on file paths and permissions accessible to the tool.

From the tool's definition Tool name is 'write' with description 'Write to file. Auto-selects client.' This explicitly performs file creation or modification operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs write safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Claude C2, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For write, this is the rule to start with:

write Rate-limited

write 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": {
    "write": {
      "limits": [
        {
          "counter": "write_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 Claude C2, apply this rule, and every write call is checked against it from then on.

FAQ

Questions about write

What does the write tool do? +

Write to file. Auto-selects client. It is categorised as a Write tool in the Claude C2 MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on write? +

Register the Claude C2 MCP server in PolicyLayer and add a rule for write: 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 Claude C2. Nothing to install.

What risk level is write? +

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

Can I rate-limit write? +

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

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

write is provided by the Claude C2 MCP server (0xyg3n/claude-c2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Claude C2, and thousands of servers like it.

This server

All 94 Claude C2 tools →

Across the catalogue

team_manager_write_memory on Team Manager MCP → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →