driftproofhq

Driftproof — AI skill for Claude Code

AI community

Continuous, model-version-bound verification of agent skills: run a skill's eval suite with and without the skill, emit hash-verified dated receipts with confidence bands, and diff them into drift rep.

How to install Driftproof

This entry records only its repository, not the path inside it, so there is no exact command to give. Open driftproofhq/driftproof and copy the folder into ~/.claude/skills/, or the file into ~/.claude/agents/.

What Driftproof does

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README

Driftproof

**Your skill passed. On which model? On what date?**

A SKILL.md teaches an AI coding agent how you like things done. When a new model ships, the same file can stop helping, or start hurting. Driftproof re-runs the skill's tests on the new model and hands you a dated, hash-verified receipt saying whether it still helps.

[![driftproof](https://img.shields.io/endpoint?url=https://driftproofhq.com/badges/commit-message-conventions.json)](https://driftproofhq.com) — live badge for the bundled `commit-message-conventions` example, generated from its own receipt.

**[Quickstart](https://driftproofhq.com/#quickstart)** · **[Latest report](https://driftproofhq.com/reports/008/)** · [driftproofhq.com](https://driftproofhq.com)

Driftproof **consumes** the [`agentskills.io/evals`](https://agentskills.io) eval format; it does not invent its own.

📊 **Eight published reports** (each re-derived from committed receipts, nothing hand-entered), spanning six published report types, the newest being release drift. All eight share one band-based, floor-gated verdict rule and differ in what moves underneath the skill — or, in the value report, in which axes are measured; or, in the instrument re-measurement, in the instrument itself:

Report #001 — release drift: ten public agent skills across a current-vs-previous Sonnet release; 9 of 10 moved beyond noise. (markdown)
Report #002 — substrate durability: the same suites across two vendors' CLIs (Claude vs Codex); 3 durable, 4 substrate-dependent, 2 regressed, 1 no effect.
Report #003 — release drift: claude-opus-4-8 → claude-opus-5; 4 improved, 2 regressed, 4 within noise.
Report #004 — capability gap: claude-opus-5 (flagship) vs `clau