collect-cli-fixtures

Capture real NDJSON stream-json output from Claude or Gemini CLI for testing by running the capture-fixture.sh script with a desired fixture name and optional prompt to generate a real .jsonl trace for your protocol scenario.

Protocol fixture sanitization normalizes sensitive fields like session IDs and validates every JSON line to ensure test inputs come from real CLI output rather than hand-written samples, preventing flaky or incomplete fixture data.

Store captured NDJSON fixtures for fixture-driven TDD by writing real traces into the apps/summoner/src/__fixtures__/claude/real/ directory and synthetic traces into the corresponding synthetic subdirectory.

Yes, this fixture capture approach works with interactive and control_request CLI flows by recording real NDJSON lines from --output-format stream-json, including interactive control_request flows, into versionable .jsonl fixtures.

Update protocol regression fixtures after a CLI or provider change when you need to cover newly observed event types, apply targeted sanitization checks, and ensure your stream-json protocol validation remains reliable.