wcagent Evidence Gate

wcagent does not gate completion on what the model says, it gates on what the repository proves: passing tests, successful builds, recorded diffs, and diagnostics. That single design choice reshapes how an agency prices and staffs AI-assisted delivery. A retainer client paying $4.99 USD per seat per month for the extension still needs their own ChatGPT, Claude, Gemini, Grok, or DeepSeek subscription, so the agency's real cost is seat fee plus model access plus the review time saved. On a 16-hour Starter Code Audit billed at $1,800, the evidence history becomes the deliverable: the handoff summary carries diffs and test results the client can inspect without re-running the work. Agencies that treat wcagent as a verification layer, not an autocomplete layer, can defend a higher audit fee because every claim in the report traces to a recorded artifact rather than a model assertion.