Evidence: Block 21 · Service (block-21)

• block type: block
• date: 2026-08-22
• resulting state: closed/verified
• story points (combined assembled cost): 53812
• execution id: 20260823.031407.736Z-316a0d1a

Stories built

• Implement reductions and iteration controls. (FLOW-005) [story]

Acceptance tooling authorization

• FEATURE-FLOW-005.md#flow-005-conformance: executable=python3; scope=test; authorization=existing Target environment

Stacked context

• compass: COMPASS.md (SP 3420)
• implements: FEATURE-FLOW-005.md (SP 503)
• 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_005_reductions_iteration.py

Pre-build acceptance observation

• RED: flow-005-conformance (FEATURE-FLOW-005.md)

intent: The executable passes the authoritative conformance cases exercising reductions and iteration controls. return code: 1 stdout: { "candidate": [ "/mnt/c/Users/barlo/projects/drydock/uat/jq/runs/20260822.044627/build/jq/jq" ], "corpus": "jq.test", "summary": { "pass": 50, "fail": 2, "error": 0, "skip": 0 }, "cases": [ { "line": 1205, "program": "pick(first)", "status": "fail", "detail": "output mismatch", "expect_failure": false, "expected": [ "[1]" ], "actual": [] }, { "line": 1209, "program": "pick(first|first)", "status": "fail", "detail": "output mismatch", "expect_failure": false, "expected": [ "[[10]]" ], "actual": [] } ] } stderr: --- drydock: progress --- cases: pass=50 fail=2 error=0 skip=0 total=52 from=tally --- drydock: end progress --- --- drydock: values at failure --- tally = {'pass': 50, 'fail': 2, 'error': 0, 'skip': 0} --- drydock: end values --- Traceback (most recent call last): File "flow-005-conformance.py", line 18, in <module> assert tally["fail"] == 0 and tally["error"] == 0 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ AssertionError

Post-build programmatic acceptance

• PASS: flow-005-conformance (FEATURE-FLOW-005.md)

intent: The executable passes the authoritative conformance cases exercising reductions and iteration controls. 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": 52, "fail": 0, "error": 0, "skip": 0 }, "cases": [] }

Build summary

RESULT: SUCCESS

FILES CHANGED:

• jq_interpreter/evaluator.py
• tests/test_flow_005_reductions_iteration.py

SUMMARY: Implemented projection-aware first path handling for pick, with reduction/iteration regression coverage.

Verification:

• FLOW-005 conformance: 52 passed, 0 failed, 0 errored
• Pytest: 101 passed

BLOCKERS:

• None