AI agents call list_onboarding_fixtures to retrieve information from Todos without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and enumerates onboarding fixture data from local bundled resources. It performs no modifications, deletions, or external operations. The emphasis on deterministic, redacted, and local-only data further confirms it is a safe read operation with minimal blast radius if misused by an agent.
From the tool's definition Tool name 'list_onboarding_fixtures' and description explicitly states 'List bundled local onboarding fixtures' — a retrieval operation with no side effects.
Attacks that exploit this kind of access
List bundled local onboarding fixtures. The fixtures are deterministic, redacted, local-only, and require no network access. It is categorised as a Read tool in the Todos MCP Server, which means it retrieves data without modifying state.
Register the Todos MCP server in PolicyLayer and add a rule for list_onboarding_fixtures: 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 Todos. Nothing to install.
list_onboarding_fixtures 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_onboarding_fixtures 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_onboarding_fixtures. 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_onboarding_fixtures is provided by the Todos MCP server (@hasna/todos). 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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