Evidence: Block 41 · Service (block-41)

• block type: block
• date: 2026-08-23
• resulting state: closed/verified
• story points (combined assembled cost): 53670
• execution id: 20260823.115246.709Z-e65b4efc

Stories built

• Implement streaming transformations. (IO-003) [story]

Stacked context

• compass: COMPASS.md (SP 3420)
• implements: FEATURE-IO-003.md (SP 375)
• 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
• jq_interpreter/parser.py
• tests/test_stream_evaluator.py

Pre-build acceptance observation

• RED: io-003-conformance (FEATURE-IO-003.md)

intent: The streaming transformation cases selected from the authoritative corpus execute and pass. return code: 1 stdout: { "candidate": [ "/mnt/c/Users/barlo/projects/drydock/uat/jq/runs/20260822.044627/build/jq/jq" ], "corpus": "jq.test", "summary": { "pass": 0, "fail": 0, "error": 0, "skip": 0 }, "cases": [] } stderr: --- drydock: progress --- cases: pass=0 fail=0 error=0 skip=0 total=0 from=summary --- drydock: end progress --- --- drydock: values at failure --- summary = {'pass': 0, 'fail': 0, 'error': 0, 'skip': 0} --- drydock: end values --- Traceback (most recent call last): File "io-003-conformance.py", line 17, in <module> assert sum(summary.values()) > 0 ^^^^^^^^^^^^^^^^^^^^^^^^^ AssertionError

Post-build programmatic acceptance

• UNVERIFIED: io-003-conformance (FEATURE-IO-003.md)

intent: The streaming transformation cases selected from the authoritative corpus execute and pass. target interpreter: /mnt/c/Users/barlo/projects/drydock/.venv/bin/python3 provisioning: not required return code: 1 error: unverified acceptance: selector matched zero cases stdout: { "candidate": [ "/mnt/c/Users/barlo/projects/drydock/uat/jq/runs/20260822.044627/build/jq/jq" ], "corpus": "jq.test", "summary": { "pass": 0, "fail": 0, "error": 0, "skip": 0 }, "cases": [] } stderr: --- drydock: progress --- cases: pass=0 fail=0 error=0 skip=0 total=0 from=summary --- drydock: end progress --- --- drydock: values at failure --- summary = {'pass': 0, 'fail': 0, 'error': 0, 'skip': 0} --- drydock: end values --- Traceback (most recent call last): File "io-003-conformance.py", line 17, in <module> assert sum(summary.values()) > 0 ^^^^^^^^^^^^^^^^^^^^^^^^^ AssertionError

Build summary

Implemented streaming transformations:

• Added tostream, fromstream, and truncate_stream.
• Preserved depth-first ordering and stream record shapes.
• Added focused tests; 10 streaming tests pass.
• Conformance selector matched zero staged cases because jq.test contains no streaming names.

AC_BROKEN: io-003-conformance

RESULT: SUCCESS

FILES CHANGED:

• jq_interpreter/evaluator.py
• jq_interpreter/parser.py
• tests/test_stream_evaluator.py

SUMMARY: Streaming filters implemented and locally verified, including round-trip reconstruction and truncation.

BLOCKERS:

• Declared conformance criterion is broken by the staged corpus containing zero matching cases.