Evidence: Block 4 · Service (block-4)

• block type: block
• date: 2026-08-22
• resulting state: closed/verified
• story points (combined assembled cost): 24282
• execution id: 20260822.195122.332Z-1d5baaf1

Stories built

• Implement JSON input and compact output handling. (EXEC-003) [story]

Stacked context

• compass: COMPASS.md (SP 3420)
• implements: FEATURE-EXEC-003.md (SP 537)
• context: run_conformance.py (SP 4354)
• context: jq.test (SP 13058)
• context: ARCHITECTURE_compact.md (SP 154)
• stack: python_compact.md (SP 1534)
• stack: common_compact.md (SP 1179)

Build directory changes

• jq_interpreter/ast.py
• jq_interpreter/cli.py
• jq_interpreter/evaluator.py
• jq_interpreter/interpreter.py
• jq_interpreter/parser.py
• tests/test_json_io.py

Pre-build acceptance observation

• GREEN (prepassed): multiple-input-values (FEATURE-EXEC-003.md)

intent: Multiple JSON input values are processed in order and emitted one per line. return code: 0

• RED: generator-line-output (FEATURE-EXEC-003.md)

intent: Multiple outputs generated from one input preserve order and multiplicity. return code: 1 stderr: --- drydock: values at failure --- result = CompletedProcess(args=['./jq', '-c', '.[]'], returncode=3, stdout='', stderr='jq: compile error: unsupported program in foundational parser\n') --- drydock: end values --- Traceback (most recent call last): File "generator-line-output.py", line 11, in <module> assert result.returncode == 0 ^^^^^^^^^^^^^^^^^^^^^^ AssertionError

• GREEN (prepassed): compact-json-output (FEATURE-EXEC-003.md)

intent: Generated objects are serialized as single-line JSON values. return code: 0

Post-build programmatic acceptance

• PASS: multiple-input-values (FEATURE-EXEC-003.md)

intent: Multiple JSON input values are processed in order and emitted one per line. target interpreter: /mnt/c/Users/barlo/projects/drydock/.venv/bin/python3 provisioning: not required return code: 0

• PASS: generator-line-output (FEATURE-EXEC-003.md)

intent: Multiple outputs generated from one input preserve order and multiplicity. target interpreter: /mnt/c/Users/barlo/projects/drydock/.venv/bin/python3 provisioning: not required return code: 0

• PASS: compact-json-output (FEATURE-EXEC-003.md)

intent: Generated objects are serialized as single-line JSON values. target interpreter: /mnt/c/Users/barlo/projects/drydock/.venv/bin/python3 provisioning: not required return code: 0

Build summary

RESULT: SUCCESS

FILES CHANGED:

• jq_interpreter/interpreter.py
• jq_interpreter/cli.py
• jq_interpreter/ast.py
• jq_interpreter/parser.py
• jq_interpreter/evaluator.py
• tests/test_json_io.py

SUMMARY: Implemented whitespace-separated JSON stream input, compact ordered JSON output, and .[] generator support. All 20 tests and declared acceptance checks pass.

BLOCKERS:

• None