List evidence records from the governance ledger, optionally filtered by system and time.\n\n
AI agents call list_evidence to retrieve information from Governance Mcp without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or lists existing governance evidence records with optional filtering. It performs no data creation, modification, deletion, code execution, or financial operations. The read-only nature and filtering parameters confirm it is a Read category tool with low severity since misuse would only expose information rather than cause destructive or operational harm.
From the tool's definition Tool name 'list_evidence' and description 'List evidence records from the governance ledger, optionally filtered by system and time' indicate a query/retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
List evidence records from the governance ledger, optionally filtered by system and time.\n\n. It is categorised as a Read tool in the Governance Mcp MCP Server, which means it retrieves data without modifying state.
Register the Governance MCP server in PolicyLayer and add a rule for list_evidence: 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 Governance Mcp. Nothing to install.
list_evidence 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 list_evidence 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 list_evidence. 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.
list_evidence is provided by the Governance MCP server (@mima-ai/governance-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
list_evidence is one line of Governance's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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