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 skills add hujianbest/harness-flow --skill hf-implementgit clone --depth 1 https://github.com/hujianbest/harness-flowWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/hujianbest/harness-flow/hf-implement)<a href="https://agentmods.dev/skills/hujianbest/harness-flow/hf-implement"><img src="https://agentmods.dev/badge/skills/hujianbest/harness-flow/hf-implement.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector pass
What 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 5.1 | $0.00054 | $0.00406 |
| Opus 5 | $0.00027 | $0.00203 |
| Sonnet 5 | $0.00011 | $0.00081 |
| Haiku 4.5 | $0.00005 | $0.00041 |
Grade A, and why
hf-implement 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 8d 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
hf-implement
实现任务票（以及规格/架构）所描述的工作。
HarnessFlow 桥接
- 更新
progress.md为implement。有 UI 时加载hf-ui-design。 - 同一时间只做一张前沿票(blockers 均已勾选)。
- 建造模式:每个行为变更走
hf-tdd(红→绿→重构);实现任务派 subagent,主会话编排。 - 票完成后勾选
tickets.md对应- [x] T-NN。 - 全部任务票勾选后：
hf-review（含代码门）→reviews/code-review.md+ 确认。 - 用户可感知：准备演示证据与体验路径，供进入
ship阶段前验收。 - 下一步进入
hf-ship。
主体
尽可能在规格/架构中预先约定的缝上使用 hf-tdd。
定期运行类型检查和单个测试文件，并在最后运行一次完整测试套件。
完成后，在进入 ship 阶段前执行 hf-review。
在用户或流程要求时，将工作提交到当前分支。
探索模式
若 feature.md 为 模式: 探索：不强制 TDD；产物即弃；写入 conclusion.md 收尾；禁止进入 ship 阶段、禁止直接晋升代码。
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.
- 8d ago First seen · 33 lines · 54 tokens per session scan A bd74adf18df7
hf-implement is a skill published in the GitHub repository hujianbest/harness-flow (53 stars, last pushed 7d ago), licensed MIT. It adds 54 tokens to every session and 406 once invoked, about $0.0003 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.
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