This record as markdown: /tools/kiln/estimate-cost.md
What estimate_cost does on Kiln
AI agents call estimate_cost to retrieve information from Kiln without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why estimate_cost is rated Low
The tool name indicates it performs an estimation or calculation of costs, which is typically a read operation that retrieves or computes data without modifying system state. However, confidence is lowered to 0.45 because the description is empty, making it impossible to confirm the exact behavior.
From the tool's definition Tool name 'estimate_cost' suggests a read-only cost calculation or query operation with no side effects.
Attacks that exploit this kind of access
The rule that runs estimate_cost safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Kiln, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For estimate_cost, this is the rule to start with:
estimate_cost 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 Kiln, apply this rule, and every estimate_cost call is checked against it from then on.
Questions about estimate_cost
estimate_cost is a read tool on the Kiln MCP server. It is categorised as a Read tool in the Kiln MCP Server, which means it retrieves data without modifying state.
Register the Kiln MCP server in PolicyLayer and add a rule for estimate_cost: 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 Kiln. Nothing to install.
estimate_cost 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 estimate_cost 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 estimate_cost. 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.
estimate_cost is provided by the Kiln MCP server (codeofaxel/Kiln). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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