# Fix Loop

> BEHAVIOR-1K ASPIRE Fix Loop

- Skill: `nvlabs/fix-loop` (Agent Skill, multi-file: 7 files)
- Install (CLI): `npx skillmds@latest add nvlabs/fix-loop`
- Raw SKILL.md: https://api.skillmd.com/api/skills/nvlabs/fix-loop/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: nvlabs (https://skillmd.com/u/nvlabs)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/nvlabs/fix-loop

---


# BEHAVIOR-1K ASPIRE Fix Loop

Use this skill for:

```text
Follow the protocol and run BEHAVIOR-1K Soda Can ASPIRE experiments.
```

```text
Follow the protocol and run BEHAVIOR-1K Radio ASPIRE experiments.
```

From `aspire/sim`, read:

1. `../../AGENTS.md`
2. `CLAUDE.md`
3. `.claude/behavior/CLAUDE.md`
4. `.claude/behavior/api-reference.md`
5. `.claude/behavior/skills/system-pipeline.md`
6. `.claude/behavior/fix-loop/INSTRUCTIONS.md`
7. `.claude/behavior/fix-loop/clean-task-slate.md`

Then follow `.claude/behavior/fix-loop/main-agent-prompt.md`.

The protocol is fixed:

1. Preflight and wait for approval.
2. Learn a campaign-owned skill library on seeds 26-35.
3. Freeze skills and the experimental contract—not a policy.
4. Run seeds 1-25 with a fresh context and empty policy per seed, allowing
   debugging only within that seed.
5. Preserve and report all outcomes.

Every trial uses replay mode, which calls `env.step` directly without an
internal model call. Do not delete the shared built-in multi-turn engine; other
experiments use it. Do not launch before preflight approval.