get_file_claims
[SUPPORT] Read-only: show active claims on a file — the whole-file lock (with the holder's session name, if any) plus any symbol-level claims. Use to check who owns a file before editing it. Pass project_id (and optional symbol) to also get a code_notes list of code-anchored notes (kind='code') f...
This record as markdown: /tools/io-github-ajc3xc-meridian/get-file-claims.md
What get_file_claims does on Meridian
AI agents call get_file_claims to retrieve information from Meridian 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 |
|---|---|---|---|
symbol | string | — | Optional symbol to scope code-anchored notes to (requires project_id). |
file_path | string | Yes | |
project_id | string | — | Include code-anchored notes (kind='code') for this project/path in the response. |
project_name | string | — | Project name — an alternative to project_id; resolved to the id internally. project_id wins if both are given. |
Parameters from the server's own tool schema.
Why get_file_claims is rated Low
This is a straightforward information retrieval operation that queries the state of file locks and claims. It has no side effects, creates no modifications, and cannot be misused to cause significant harm. Low severity reflects the informational nature of the output and limited blast radius if an AI agent calls it repeatedly or maliciously.
From the tool's definition Tool is explicitly marked '[SUPPORT] Read-only' and described as 'show active claims on a file' with the function to 'check who owns a file before editing it'. It retrieves and displays lock/claim state and code-anchored notes without modifying any data.
Risk signalsAccepts file system path (file_path)
Attacks that exploit this kind of access
The rule that runs get_file_claims safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Meridian, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_file_claims, this is the rule to start with:
get_file_claims is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Meridian, apply this rule, and every get_file_claims call is checked against it from then on.
Questions about get_file_claims
[SUPPORT] Read-only: show active claims on a file — the whole-file lock (with the holder's session name, if any) plus any symbol-level claims. Use to check who owns a file before editing it. Pass project_id (and optional symbol) to also get a code_notes list of code-anchored notes (kind='code') for that path. It is categorised as a Read tool in the Meridian MCP Server, which means it retrieves data without modifying state.
get_file_claims accepts 4 parameters: symbol, file_path, project_id, project_name. Required: file_path. The full parameter table on this page comes from the server's own tool schema.
Register the Meridian MCP server in PolicyLayer and add a rule for get_file_claims: 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 Meridian. Nothing to install.
get_file_claims is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_file_claims 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 get_file_claims. 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.
get_file_claims is provided by the Meridian MCP server (@meridianmcp/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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