# Evidence: Block 1 · Foundational (block-1)

- block type: block
- date: 2026-08-22
- resulting state: closed/verified
- story points (combined assembled cost): 10461
- execution id: 20260822.194717.195Z-0948cafd

## Stories built
- Define the standalone jq interpreter architecture and module boundaries. (architecture-foundation) [story]

## Stacked context
- compass: COMPASS.md (SP 3420)
- implements: ARCHITECTURE.md (SP 1078)
- context: TECHNOLOGY_STACK.md (SP 200)
- stack: python.md (SP 3892)
- stack: common.md (SP 1807)

## Build directory changes
- jq_interpreter/__init__.py
- jq_interpreter/architecture.py
- jq_interpreter/diagnostics.py
- jq_interpreter/runtime.py
- tests/test_architecture.py

## Pre-build acceptance observation
- GREEN (prepassed): architecture-runtime (ARCHITECTURE.md)
  intent: The declared runtime stack is available using only Python standard-library modules.
  return code: 0
- GREEN (prepassed): architecture-contract (ARCHITECTURE.md)
  intent: The staged conformance runner exposes the process exit-code contract required by the architecture.
  return code: 0

## Post-build programmatic acceptance
- PASS: architecture-runtime (ARCHITECTURE.md)
  intent: The declared runtime stack is available using only Python standard-library modules.
  target interpreter: /mnt/c/Users/barlo/projects/drydock/.venv/bin/python3
  provisioning: not required
  return code: 0
- PASS: architecture-contract (ARCHITECTURE.md)
  intent: The staged conformance runner exposes the process exit-code contract required by the architecture.
  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/architecture.py
- jq_interpreter/diagnostics.py
- jq_interpreter/runtime.py
- jq_interpreter/__init__.py
- tests/test_architecture.py

SUMMARY:
Established explicit module boundaries, evaluation context isolation, and centralized exit-code contracts. All 15 tests and both declared acceptance checks pass. `sources/` was not modified.

BLOCKERS:
- None