Autonomous Build-Test-Fix

Building doesn't stop at "built." Claude runs the new automation in test mode, looks at what each step actually produced, recognizes failure patterns, applies targeted fixes, and retests — repeating until the build passes or the same problem keeps recurring.

The loop

1. Build — Claude commits the automation as you described it.
2. Test run — every step executes against real credentials, and its real inputs and outputs are captured.
3. Inspect — Claude reads the captured results and spots errors and anomalies: HTTP failures, validation errors, empty transforms, missing values, unexpected shapes.
4. Diagnose — Claude matches the failure to known patterns: missing field, wrong scope, broken mapping, expired auth.
5. Repair — Claude applies a targeted fix to the failing step, not a full rebuild.
6. Retest — Claude re-runs from the failing step, or from the start if the fix changed earlier behavior.
7. Decide — if the same error recurs after several attempts, Claude stops and surfaces it. Otherwise the loop continues.

Branch coverage verification

After a successful run, Claude scans the test results to find conditional branches the test data didn't exercise, alters the captured values to flip those conditions, and replays the relevant steps.

Why this works

Each step's real inputs and outputs are preserved after a test run, so Claude can inspect them, mutate them, and replay specific branches without rebuilding from scratch.

Every path tested before it goes live

The result is that every logic path is exercised before the automation goes live, not just the path the test data happened to take.

Most automations ship when the happy path passes; broken edge-case branches surface later, in production, when real data finally trips them. Full coverage up front means the automation is already proven against every condition the first time it runs — no debugging on customers, no silent data corruption from a branch nobody tested.