Link skill to file (establishes reference relationship). WHAT: Creates an association between a skill and a file via the skill_file_association table. WHEN: When a file contains supporting material for a skill (e.g. templates, reference documents, images). BEHAVIOR: Creates association between sk...
AI agents use link_skill_to_file to create or update resources in Forgetful — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Forgetful environment.
This tool creates new data (a linking/association record) but does so reversibly. There is no deletion, irreversible modification, code execution, or financial impact. The action is constrained to linking existing entities owned by the user. The low severity reflects minimal blast radius—a misconfigured link causes no data loss and can be undone by deleting the association.
From the tool's definition Tool creates an association between a skill and a file via the skill_file_association table. The description states 'Creates association between skill and file' and establishes a 'reference relationship', which are reversible data modifications.
Documented attack patterns abuse exactly the kind of access link_skill_to_file gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Forgetful, and nothing reaches the server without passing your rules. This is the rule we recommend for link_skill_to_file:
{
"version": "1",
"default": "deny",
"tools": {
"link_skill_to_file": {
"limits": [
{
"counter": "link_skill_to_file_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}link_skill_to_file 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.
Free to start. No card required.
Link skill to file (establishes reference relationship). WHAT: Creates an association between a skill and a file via the skill_file_association table. WHEN: When a file contains supporting material for a skill (e.g. templates, reference documents, images). BEHAVIOR: Creates association between skill and file. Both skill and file must exist and be owned by the user. Args: skill_id: Skill ID to link file_id: File ID to link ctx: Context (automatically injected) Returns: Confirmation dict with success status Raises: ToolError: If skill or file not found or not owned by user. It is categorised as a Write tool in the Forgetful MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Forgetful MCP server in PolicyLayer and add a rule for link_skill_to_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 Forgetful. Nothing to install.
link_skill_to_file is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the link_skill_to_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 link_skill_to_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.
link_skill_to_file is provided by the Forgetful MCP server (scottrbk/forgetful). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 59 Forgetful tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
59 Forgetful tools catalogued and risk-classified — across an index of 42,500+ MCP servers.