Link skill to document (establishes reference relationship). WHAT: Creates an association between a skill and a document via the skill_document_association table. WHEN: When a document contains detailed instructions, analysis, or reference material that supports a skill. BEHAVIOR: Creates associa...
AI agents use link_skill_to_document 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 a new relational link (association) between two pre-existing entities owned by the user. It does not read arbitrary data (Read), execute code (Execute), delete data (Destructive), or move money (Financial). The operation is reversible (can be undone by removing the association), making it a Write operation.
From the tool's definition Creates an association between a skill and a document via the skill_document_association table. The tool establishes a reference relationship, which is a reversible creation of metadata linking two existing entities.
Documented attack patterns abuse exactly the kind of access link_skill_to_document 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_document:
{
"version": "1",
"default": "deny",
"tools": {
"link_skill_to_document": {
"limits": [
{
"counter": "link_skill_to_document_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}link_skill_to_document 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.
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Link skill to document (establishes reference relationship). WHAT: Creates an association between a skill and a document via the skill_document_association table. WHEN: When a document contains detailed instructions, analysis, or reference material that supports a skill. BEHAVIOR: Creates association between skill and document. Both skill and document must exist and be owned by the user. Args: skill_id: Skill ID to link document_id: Document ID to link ctx: Context (automatically injected) Returns: Confirmation dict with success status Raises: ToolError: If skill or document 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_document: 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_document 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_document 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_document. 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_document 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.