checklist_validate_definition
Validates a checklist or SOP definition JSON against the CHECKRUN-1 schema (definition_id, title, semver version, non-empty steps[] each with step_id/title/instruction/evidence_requirement (none|text|file-digest|attestation)/gate (blocking|advisory)). Returns valid:true/false plus a field-by-fiel...
This record as markdown: /tools/postoaklabs-ainumbers-mcp-apps/checklist-validate-definition.md
What checklist_validate_definition does on Ainumbers Mcp Apps
AI agents call checklist_validate_definition to retrieve information from Ainumbers Mcp Apps 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 |
|---|---|---|---|
definition | object | Yes | The checklist/SOP definition object to validate. |
Parameters from the server's own tool schema.
Why checklist_validate_definition is rated Low
This tool inspects and validates structured data (checklist definitions) against a predefined schema, returning validation results and errors. It has no side effects—it does not create, modify, delete, execute code, or process financial transactions. It is a pure data validation/query operation with no blast radius if misused.
From the tool's definition Tool validates a checklist definition JSON against a schema and returns valid:true/false plus error list. The description explicitly states it is "read-only" (server description) and performs validation/schema checking without modifying, executing, or…
Attacks that exploit this kind of access
The rule that runs checklist_validate_definition safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Ainumbers Mcp Apps, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For checklist_validate_definition, this is the rule to start with:
checklist_validate_definition 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 Ainumbers Mcp Apps, apply this rule, and every checklist_validate_definition call is checked against it from then on.
Questions about checklist_validate_definition
Validates a checklist or SOP definition JSON against the CHECKRUN-1 schema (definition_id, title, semver version, non-empty steps[] each with step_id/title/instruction/evidence_requirement (none|text|file-digest|attestation)/gate (blocking|advisory)). Returns valid:true/false plus a field-by-field error list. Pair with checklist_step_receipt to run the definition headlessly. It is categorised as a Read tool in the Ainumbers Mcp Apps MCP Server, which means it retrieves data without modifying state.
checklist_validate_definition accepts 1 parameter: definition. Required: definition. The full parameter table on this page comes from the server's own tool schema.
Register the Ainumbers Mcp Apps MCP server in PolicyLayer and add a rule for checklist_validate_definition: 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 Ainumbers Mcp Apps. Nothing to install.
checklist_validate_definition 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 checklist_validate_definition 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 checklist_validate_definition. 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.
checklist_validate_definition is provided by the Ainumbers Mcp Apps MCP server (postoaklabs/ainumbers-mcp-apps). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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