What problem does it solve? When a Fianu control fails, engineers struggle to find the measured value, the policy threshold it was compared against, and the failed items behind the verdict. This Skill maps the attestation data model and read endpoints so an agent can answer "why did this control fail" without guessing at the wrong endpoint. ## Core Features & Use Cases - Result vocabulary: Interprets the six attestation results (pass, fail, warn, in progress, not required, not found) and the separate execution status values, including annotation-based excusal. - Failure diagnosis: Reads measured values from $.detail.*, thresholds from $.policy.data.*, comparison logs from $.policy.evaluation.logs[], and violation rows from $.display.violations.rows via GET /notes/:uuid?format=raw. - Manual attestation upload: Submits manual evidence through POST /internal/upload/:control_entity_key/attestations/manual with a multipart payload. - Use Case: A release gate fails on a Code Coverage control. The agent fetches the raw attestation note, reports "measured 0.5, policy minimum 0.8", and explains that threshold controls record no violation rows. ## Quick Start Ask the agent to fetch the latest attestation for a control entity and explain why it failed, including the measured value and policy threshold.