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Execution Types Contract

execution-types-contract

Keep execution engine changes aligned with stable public types (execution.py + types.py lockstep).

SKILL.md

Full skill instructions

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Purpose

When extending execution behavior, keep the public contract stable and import-safe.

When To Use

  • You change execution orchestration in src/​vibe_piper/​execution.py.
  • You also add/​adjust public result/​config types in src/​vibe_piper/​types.py.

Procedure

  • Decide what is "public API" vs. internal implementation.
  • Put public dataclasses/​enums/​protocols in src/​vibe_piper/​types.py.
  • Keep src/​vibe_piper/​execution.py focused on orchestration and flow.
  • Enforce a one-way dependency:
    • src/​vibe_piper/​execution.py may import from vibe_piper.types.
    • Avoid src/​vibe_piper/​types.py importing from vibe_piper.execution.
  • If you need type-only references that would create a cycle, use typing.TYPE_CHECKING and forward references.
  • Prefer narrow, explicit types (dataclasses/​enums) over loose dicts for cross-module boundaries.
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Manual notes

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