AI agents call reelgrep_get_search_matches to retrieve information from Reelgrep without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves pre-computed search results from a local video library and returns matching frames. It is a read-only query operation that accesses existing data without side effects, modification, or destructive capabilities. The low severity reflects minimal blast radius—even if misused by an agent, it only exposes video search results already indexed in the user's own library.
From the tool's definition Tool description states it 'Fetch[es] a single person/object search with its matches' and 'Each match includes the matching frame'. The verb 'fetch' indicates data retrieval without modification.
Attacks that exploit this kind of access
Fetch a single person/object search with its matches sorted by confidence (descending). Each match includes the matching frame. It is categorised as a Read tool in the Reelgrep MCP Server, which means it retrieves data without modifying state.
Register the Reelgrep MCP server in PolicyLayer and add a rule for reelgrep_get_search_matches: 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 Reelgrep. Nothing to install.
reelgrep_get_search_matches 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 reelgrep_get_search_matches 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 reelgrep_get_search_matches. 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.
reelgrep_get_search_matches is provided by the Reelgrep MCP server (solomonneas/reelgrep-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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