# Evidence: Block 22 · Service (block-22)

- block type: block
- date: 2026-08-22
- resulting state: closed/verified
- story points (combined assembled cost): 53781
- execution id: 20260823.032028.932Z-a3770ea3

## Stories built
- Implement recursive generator primitives. (FLOW-006) [story]

## Acceptance tooling authorization
- FEATURE-FLOW-006.md#flow-006-conformance: executable=python3; scope=test; authorization=existing Target environment

## Stacked context
- compass: COMPASS.md (SP 3420)
- implements: FEATURE-FLOW-006.md (SP 481)
- context: builtin.jq (SP 2408)
- context: jq-manual.txt (SP 32696)
- context: jq.test (SP 13058)
- context: ARCHITECTURE_compact.md (SP 154)
- stack: python_compact.md (SP 1534)

## Build directory changes
- jq_interpreter/evaluator.py
- tests/test_flow_006_recursive_generators.py

## Pre-build acceptance observation
- GREEN (prepassed): flow-006-conformance (FEATURE-FLOW-006.md)
  intent: The executable passes the authoritative conformance cases exercising recursive generators and recursive descent.
  return code: 0
  stdout:
    {
      "candidate": [
        "/mnt/c/Users/barlo/projects/drydock/uat/jq/runs/20260822.044627/build/jq/jq"
      ],
      "corpus": "jq.test",
      "summary": {
        "pass": 2,
        "fail": 0,
        "error": 0,
        "skip": 0
      },
      "cases": []
    }

## Post-build programmatic acceptance
- PASS: flow-006-conformance (FEATURE-FLOW-006.md)
  intent: The executable passes the authoritative conformance cases exercising recursive generators and recursive descent.
  target interpreter: /mnt/c/Users/barlo/projects/drydock/.venv/bin/python3
  provisioning: not required
  return code: 0
  stdout:
    {
      "candidate": [
        "/mnt/c/Users/barlo/projects/drydock/uat/jq/runs/20260822.044627/build/jq/jq"
      ],
      "corpus": "jq.test",
      "summary": {
        "pass": 2,
        "fail": 0,
        "error": 0,
        "skip": 0
      },
      "cases": []
    }

## Build summary
Implemented recursive generator primitives.

- Added correct `while`, `until`, `repeat`, `recurse`, and recursive descent behavior.
- Added focused FLOW-006 tests.
- Tests: 106 passed.
- Scoped conformance: 2 passed, 0 failed, 0 errored.

RESULT: SUCCESS

FILES CHANGED:
- jq_interpreter/evaluator.py
- tests/test_flow_006_recursive_generators.py

SUMMARY:
Recursive generators now preserve jq stream ordering, branching, termination, and partial output behavior.

BLOCKERS:
- None