AI agents call metaharness_score to retrieve information from Ruflo without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears to generate or retrieve a readiness assessment scorecard, which is a data retrieval and reporting function with no side effects. The description is truncated ('from' suggests incomplete text), but the naming and context within a multi-agent orchestration platform point to status/metrics gathering rather than control actions.
From the tool's definition Tool name 'metaharness_score' and description referencing 'ADR-150 — 5-dimension harness readiness scorecard' indicates a read-only scorecard/metrics retrieval operation. No modifiers suggesting write, deletion, execution, or financial operations are present.
Attacks that exploit this kind of access
ADR-150 — 5-dimension harness readiness scorecard from. It is categorised as a Read tool in the Ruflo MCP Server, which means it retrieves data without modifying state.
Register the Ruflo MCP server in PolicyLayer and add a rule for metaharness_score: 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 Ruflo. Nothing to install.
metaharness_score 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 metaharness_score 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 metaharness_score. 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.
metaharness_score is provided by the Ruflo MCP server (ruvnet/ruflo). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
metaharness_score is one line of Ruflo's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →