Coverage

Coverage is a roll-up that summarises how complete authority is across a business service. It is computed from the Authority Graph projection and surfaced in the workbench Overview tab and in the Posture & Help drawer tab.

How coverage is computed

For each decision surface in the service, MIDAS evaluates the six posture axes (see Authority Graph — Posture). A surface is complete when all six axes are resolved.

Coverage at the service level is the proportion of complete surfaces over the total number of surfaces. Per-axis coverage tables break this down so you can see, for example, which surfaces have a profile but no grant.

Reading coverage

• 100% complete is the target. Real services often sit between 70% and 95%.
• A drop in coverage is usually explained by one of the gap diagnostics: surfaces without profiles, profiles without grants, grants without agents, missing fail-mode policies, dangling escalation targets.
• A drop in fail_mode_policy_status specifically means a policy has been retired without a replacement.