monty_transform_file
Read a text file, run a named workspace transform, and write the result to an output file, returning only a small summary.
This record as markdown: /tools/cowork-os/monty-transform-file.md
What monty_transform_file does on CoWork OS
AI agents invoke monty_transform_file to trigger actions in CoWork OS. 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.
Why monty_transform_file is rated High
Although the tool reads input and writes output (which could suggest Write), the critical phrase is 'run a named workspace transform.' This indicates execution of user-defined or system-defined transforms whose actual behavior is opaque and argument-dependent. This meets the Execute category: code/operations triggered by arguments whose effects cannot be fully predicted without knowing the transform implementation.
From the tool's definition The tool 'run[s] a named workspace transform' on file content and 'write[s] the result to an output file.' This executes arbitrary transformations—which may include code execution, script processing, or other operations—whose side effects depend on what…
Attacks that exploit this kind of access
The rule that runs monty_transform_file safely
PolicyLayer is an MCP gateway: it sits between your AI agents and CoWork OS, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For monty_transform_file, this is the rule to start with:
monty_transform_file 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.
The button opens the PolicyLayer dashboard: create your workspace, connect CoWork OS, apply this rule, and every monty_transform_file call is checked against it from then on.
Questions about monty_transform_file
Read a text file, run a named workspace transform, and write the result to an output file, returning only a small summary. It is categorised as a Execute tool in the CoWork OS MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the CoWork OS MCP server in PolicyLayer and add a rule for monty_transform_file: 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 CoWork OS. Nothing to install.
monty_transform_file is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the monty_transform_file 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.
Set action: deny in the PolicyLayer policy for monty_transform_file. 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.
monty_transform_file is provided by the CoWork OS MCP server (CoWork-OS/CoWork-OS). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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