Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/qoderai/better-harness/verifynpx skills add QoderAI/better-harness --skill verifygit clone --depth 1 https://github.com/QoderAI/better-harnessWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00007 | $0.00021 |
| Opus 5 | $0.00003 | $0.00010 |
| Sonnet 5 | $0.00001 | $0.00004 |
| Haiku 4.5 | $0.00001 | $0.00002 |
Grade A, and why
verify scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Run focused tests before the full suite.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 3d ago First seen · 7 lines · 7 tokens per session scan A 7d974bf691ee
verify is a skill published in the GitHub repository QoderAI/better-harness (2,130 stars, last pushed yesterday), licensed MIT. It adds 7 tokens to every session and 21 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
capability-recommender
Use when the need is read-only capability design only: skills, hooks, MCP servers, subagents, plugins, scripts, or CI/headless automation. For cross-surface workbench bootstrap or repair, use harness-builder.
plan
用于把已批准 Spec 或足够明确的非平凡请求转成 Executable Plan。触发条件：需要 active slice、planning surface、验证路径、能力缺口或 commit unit。不要在需求/验证策略不清时使用；先回 brainstorm。项目工作面不清时转 harness-builder。.
agent-instructions-maintainer
Use when durable agent instructions need audit or repair only: AGENTS.md, CLAUDE.md, .claude.md, .claude.local.md, canonical rules/.mdc, or Cursor rule mirrors. For cross-surface workbench bootstrap or repair, use harness-builder.
find-skills
Use this helper to discover reusable agent skills for a clear task or capability gap. Trigger it when the user asks how to do X, find a skill, or extend agent capabilities. Do not install or adopt a skill just because it is related; project adoption belongs to harness-builder.
harness-builder
Use when a project workbench needs bootstrap, repair, or cross-surface recommendation: route entry, recovery, verification, capability, install, and anti-entropy gaps. Thick work goes to capability-recommender, agent-instructions-maintainer, or recovery-surface-builder.
implement
用于在一个 scoped active slice 上做最小代码或文档改动。触发条件：用户请求/Spec/Executable Plan 已清楚，工作面和验证路径足够明确。不要在需求、active slice、根因或工作面不清时使用；局部检查只是反馈，ready 只能交给 verify。.