The AI Workflow Branch Coverage Analyzer

 Create a testing platform that maps the possible branches in an AI-powered workflow and reveals which paths have not been tested.

Let developers describe a workflow containing model calls, conditional rules, tool permissions, retries, validation steps, human approval checkpoints, and fallback behavior.

Build:

• An interactive workflow graph with labeled decision branches.

• A test coverage matrix showing which branches and transitions have been exercised.

• A generator for missing-path test cases.

• Failure injection for timeouts, invalid model outputs, unavailable tools, and rejected approvals.

• A trace viewer showing the sequence of steps taken by each test.

• A detector for unreachable branches and missing fallback paths.

• A regression report comparing workflow versions.

• A release checklist for critical untested paths.

Support deterministic mock execution without external API calls. Do not equate branch coverage with overall correctness or safety. Make test results reproducible and explain how each proposed test improves coverage. Include a sample agent workflow with retries, tool calls, and human review.