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Long Running Harness Kit

long-running-harness-kit

Design long-running agent harnesses with resumable checkpoints and initializer/coder handoffs. Use when tasks span multiple sessions or require recovery after interruption.

SKILL.md

Full skill instructions

Long Running Harness Kit

Overview

Define a minimal harness that can pause and resume safely, with clear artifacts that survive context resets. Emphasize initializer + coder roles and persistent run state.

Quick start

  1. Fill templates/​harness_plan.json.
  2. Write progress.log and results.json outside the skill directory.
  3. Use the initializer to set up context; use the coder to make incremental progress.

Core Guidance

  • Use two roles: initializer (setup + context) and coder (incremental tasks).
  • Persist state each step (progress, decisions, artifacts).
  • Keep tasks small; checkpoint after every meaningful change.
  • On resume, read artifacts first, then continue with a narrow next step.

Resources

  • references/​harness-checklist.md: Resumability and handoff checklist.
  • templates/​harness_plan.json: Plan scaffold for long-running runs.

Validation

  • Confirm artifacts exist and a resume step can continue from the last checkpoint.

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