Full-text search across Bear note titles, tags, and body content. Returns matching notes ranked by relevance (title matches first, then tag, then body). Body matches include a text snippet with surrounding context. Locked/private notes will match by title but may not match body searches — results...
Risk signalsAccepts freeform code/query input (query)
Part of the Better Bear server.
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AI agents call bear_search to retrieve information from Better Bear without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though bear_search only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"bear_search": {}
}
}See the full Better Bear policy for all 35 tools.
These attack patterns abuse exactly the kind of access bear_search gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Full-text search across Bear note titles, tags, and body content. Returns matching notes ranked by relevance (title matches first, then tag, then body). Body matches include a text snippet with surrounding context. Locked/private notes will match by title but may not match body searches — results include 'locked: true' for these notes. If you can't find content you expect, try listing notes to check if the relevant note is locked.. It is categorised as a Read tool in the Better Bear MCP Server, which means it retrieves data without modifying state.
Register the Better Bear MCP server in PolicyLayer and add a rule for bear_search: 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 Better Bear. Nothing to install.
bear_search 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 bear_search 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 bear_search. 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.
bear_search is provided by the Better Bear MCP server (better-bear). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 35 Better Bear tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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