Borrowing it
Nothing to install: this file belongs to double-coding-lab/Flow2Spec. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/double-coding-lab/Flow2Spec/main/.claude/skills/f2s-kb-fix/SKILL.mdgit clone --depth 1 https://github.com/double-coding-lab/Flow2SpecWrote 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/double-coding-lab/flow2spec/f2s-kb-fix)<a href="https://agentmods.dev/skills/double-coding-lab/flow2spec/f2s-kb-fix"><img src="https://agentmods.dev/badge/skills/double-coding-lab/flow2spec/f2s-kb-fix/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/double-coding-lab/flow2spec/f2s-kb-fix"><img src="https://agentmods.dev/badge/skills/double-coding-lab/flow2spec/f2s-kb-fix.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00040 | $0.02346 |
| Opus 5.5 | $0.00016 | $0.00938 |
| Sonnet 5.5 | $0.00008 | $0.00469 |
| Haiku 4.5 | $0.00004 | $0.00235 |
Grade A, and why
f2s-kb-fix 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 113 lines — stays where its author put it; the contents beside it link to each section on GitHub.
任务路径：凡
.task/落盘与续作，**必须以rules/f2s-task解析的TASK_ROOT为准（.task或.task/<developerId>；config → git → legacy）。下文若仍出现.task/todo.json/.task/active/，均视为TASK_ROOT/...的简写。
执行口径：
f2s-kb-fix默认"修代码 + 同步.Knowledge"，无需用户额外要求"请同步知识库"。
KB 自动合并协议（必须）
本技能不得把“人工执行命令”作为用户流程。修复完成后，由 agent 自己完成知识候选生成、合并、构建与校验：
- 将本次修复后的正确规则/实现边界转换为
kb-delta草稿，记录taskId、developerId、baseRevisions、changes与修复证据；若changeTracking.fix=true且已有任务目录，可把 delta 落在当前TASK_ROOT/active/<task-name>/kb-delta.json，否则可在内存中形成等价对象。changes可使用appendBody/replaceBody/updateFrontmatter；确需新主题时使用createTopic，并可携带taskRule与matcher让路由一并接入。 - 写入
.Knowledge前，必须用flow2spec kb plan <delta>或等价内部能力预演；若 topic revision 不一致，停止自动写入，转入语义合并说明。 - 可自动合并时，由 agent 调用
flow2spec kb apply <delta>或等价内部能力写入 topic，并随后执行flow2spec kb build与flow2spec kb check。 - 用户只看到“修复与知识库已同步 / 有语义冲突需确认 / 已跳过入库及原因”，不要求用户手动执行
kb plan/apply/build/check。
编排（主 / 子 agent）
- 两字段（
subAgent/switchAgentVerification）语义以统一入口为唯一事实源：Cursor/Claude 读配置根rules/f2s-flow2spec-unified-entry.*；Codex 读.codex/topics/f2s-flow2spec-unified-entry.md（与上同源，flow2spec init镜像）。本处不复述。 - 代码子包（bug 修复类实现代码）：
subAgent=true时可外包给子 agent 执行。 - 文档子包（rules / skills / topics / stock-docs 等文风类改动）：默认不拆，由主 agent 直接编写，以保证「现行真值覆盖 / 篇幅上限 / 禁历史否定堆砌」等文风合规。
- 若确需外包文档改动：子侧只输出「原位替换 diff」（before / after 小段），不得整文件重写；由主 agent 合并落盘。
- 写权硬约束：
manifest-routing.json/.Knowledge/index.md恒由主 agent 落盘，子 agent 不得触碰。 - 落盘侧自验。
/修正能力（f2s-kb-fix）
输入
- 用户描述违规点、正确写法、可选范围。
步骤
步骤 0：变更追踪（仅当 changeTracking.fix: true）
执行前读取 flow2spec.config.json，若 changeTracking.fix: true：
- 检查
.task/todo.json是否存在活跃任务，将用户描述与keywords匹配。 - 命中 → 加载对应
task.md，展示剩余清单，在已有任务中继续。 - 无命中 → 创建新任务（见
f2s-task规则），将步骤 1–4 写入task.md作为任务 checklist。 - 执中必写盘：每完成
task.md中一步，同一会话内立即Edit将该步[ ]→[x]；禁止积压打钩或口头完成代替写盘（见f2s-task「中断与会话结束」「归档门禁」）。 - 用户代办：凡须用户改库、配环境、回归验证等项，同会话内追加写入
.task/active/<task-name>/user-todos.md（见f2s-task）；新建任务时若无代办可写占位说明。
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.
- 1mo ago First seen · 113 lines · 40 tokens per session scan A a6c0db881412
f2s-kb-fix is a skill published in the GitHub repository double-coding-lab/Flow2Spec (52 stars, last pushed 6d ago), licensed MIT. It adds 40 tokens to every session and 2,346 once invoked, about $0.0002 per session on Opus 5.5. 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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