Individual skill
prompt-regression
Statically checks harness assets against a known-answer probe set after rule/skill changes — inspects the changed source for the trigger phrases, chain links and gate conditions each probe expects, and reports PASS/FAIL/SKIP per probe. Source inspection only; it does not run live sessions, so it catches assets that no longer SAY the right thing, not models that stop DOING it. Triggers on "prompt regression", "did my changes break anything", "regression check", "test harness changes".
plugins/fh-meta/skills/prompt-regression/SKILL.md
Source commit 86a7a68a70a3812c05713f64081ca42a5bfddaa8
What was checked
- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- Yes
- Repository scan complete
- No
- Skill scan complete
- No
- Observed behavior
- Network or broad shell
- Last checked
- Nov 6, 2026
These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.
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Repository context
- Repository stars (not skill ratings)
- 31
- Repository last updated
- Nov 8, 2026
- License
- MIT
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- knowledge-management Repository topic
- codex Repository topic
- harness Repository topic
- claude-code Repository topic
- multi-agent Repository topic
- meta-harness Repository topic
- agent-governance Repository topic
- self-evolving Repository topic
- agentic-coding Repository topic
- loop-engineering Repository topic
- testing Derived category
Files and excerpt
File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.
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# prompt-regression — Harness Regression Detection
After CLAUDE.md edits, rule changes, or new skill additions, harness behavior can silently regress. This skill runs a lightweight probe suite against the changed assets and compares outputs against saved baselines to surface regressions before they reach production.
> **Scope distinction**
> - harness-doctor: structural completeness (files, links, drift)
> - prompt-regression: **behavioral correctness** — did the change alter expected AI response patterns?
---
## Triggers
- `/prompt-regression`
- "prompt regression", "regression check", "regression test"