green-and-clean

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name: green-and-clean description: Operating model for disciplined agent work: stay on scope, avoid guessing, decompose work into verifiable chunks, and keep context lean and durable.

Green and Clean — Operating Model

This skill enforces a strict operating model:

• Green: Work is verifiably correct and meets explicit acceptance criteria.
• Clean: Context is curated; durable state lives in tracked docs, not chat.

Use this skill at the start of any non-trivial task, when scope feels unclear, when you suspect drift, and before declaring work done.

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Non‑negotiables

• No guessing: if required inputs are missing (paths, branch, VM name, expected behavior), STOP and ask for them.
• No drift: do not expand scope beyond the current feature/phase.
• No hidden state: durable decisions must be written into tracked docs (not only chat, not only local handoff notes).
• No "done-ish": work is only complete when acceptance criteria and validation are satisfied.

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Pre‑flight (before doing work)

Confirm each item explicitly:

1. Objective: one sentence describing what "done" looks like.
2. Scope:
   • In scope:
   • Out of scope:
3. Inputs present: identify any required info; if any are missing, ask.
4. Acceptance criteria (must be verifiable):
   • AC1:
   • AC2:
5. Validation tier: which checks/tests will be run (minimum Tier 1 where defined).
6. Plan size:
   • If the work is more than ~3 meaningful steps, decompose into bite-sized tasks with acceptance criteria.

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In‑flight discipline (while working)

At natural checkpoints (every 1–3 edits / tool calls), run this quick audit:

• On track: is the current step directly contributing to the objective?
• Clarity: am I relying on assumptions? If yes, pause and ask.
• Decomposition: has the task become multi-stage? If yes, split into verifiable subtasks.
• Context hygiene:
  • Prefer referencing tracked docs over repeating long histories.
  • Avoid copying logs unless they directly affect a decision.

Drift response:

• If new work is discovered, record it as "Next" instead of expanding the current scope unless the user explicitly reprioritizes.

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Post‑flight (before declaring complete)

1. Acceptance criteria met: demonstrate how each AC is satisfied.
2. Validation executed: note what was run (and what was not).
3. Docs updated: if behavior/process changed, update the appropriate tracked docs:
   • AGENT_HANDOFF.md, PM_PLAN.md, TEST_PLAN.md, README (as applicable)
4. Handoff readiness: if ending a session, follow .cursor/rules/handoff-checklist.mdc and write a concise handoff note using the session summarizer skill.