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/a2c-smcp/theseus-kit/write-tfontonpx skills add A2C-SMCP/theseus-kit --skill write-tfontogit clone --depth 1 https://github.com/A2C-SMCP/theseus-kitWrote 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/a2c-smcp/theseus-kit/write-tfonto)<a href="https://agentmods.dev/skills/a2c-smcp/theseus-kit/write-tfonto"><img src="https://agentmods.dev/badge/skills/a2c-smcp/theseus-kit/write-tfonto.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00075 | $0.01725 |
| Opus 5 | $0.00037 | $0.00863 |
| Sonnet 5 | $0.00015 | $0.00345 |
| Haiku 4.5 | $0.00007 | $0.00172 |
Grade A, and why
write-tfonto 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 5d 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 — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Write TFOnto —— 知识结构与能力草图转 .tfo
把 persona-interview 产出的三张清单 + 能力草图（或任何画像文档中的概念/数据字段/关系/能力描述）转换为合法 .tfo 文件。事实正确性由清单确认环节保证，本技能只保证格式合法性——转换是机械活，不发明新概念、不改动需求方确认过的内容。
输入契约
输入必须是结构化清单：概念（名词 + 一句话定义）、数据字段（挂概念 + 类型）、关系（动词 + 方向 + 触发词），外加选交的能力草图（能力 → 形态 → 输入输出）。收到自由散文时，先用 AskUserQuestion 追问补全清单，不猜。
转换规则
| 清单项 | .tfo 归宿 | 要点 |
|---|---|---|
| 概念 | object_types |
pos: [noun]；有「名字」字段的概念写 name_properties；有业务唯一标识的写 primary_property |
| 数据字段 | properties |
domain 挂所属概念；data_range 写 JSON Schema 片段；单值字段加 characteristics: {is_functional: true} |
| 关系 | link_types |
定向 domain → range；触发词进 trigger_words |
| 能力草图 | functions / actions |
按场景组合表落位：只读 → query Function 单用；简单写 → Action + edit_set；复杂写 → Action 挂 edit Function；联动 → side_effects（见 references/capability-layer.md） |
ontology.namespace写机器人代号（如math-teacher），只允许[A-Za-z0-9_.-]；schema_version: 7。- 能力草图是选交件：没有经需求方确认的能力不写
functions/actions；写了就必须过自检。
起草纪律
- name 跨五类全局唯一——重名平台直接拒绝导入。
- 引用写 name 不写 id：
domain/range/name_properties/primary_property/depends_on/function_id里写别的 Def 的名字；id省略或写auto。 - 字段白名单（extra=forbid）：每个 Def 只允许格式说明列出的字段，未知字段导入被拒。
- trigger_words 只属于 link_types：写在属性/概念上会被拒绝。
- 值域
data_range必须是合法 JSON Schema 片段（mapping）——形状写清楚，机器人能力直接受益。
自检清单（交付门槛）
写完逐条核对（覆盖提交者最易写错的层；权威校验门是平台导入）：
- YAML 顶层是 mapping，无未知顶层键
-
schema_version: 7；ontology.namespace显式、非空、合法字符 - 五类 Def 名字全文件唯一
- 所有
domain/range/name_properties/primary_property/depends_on/function_id引用都能解析到已定义的名字 - 每个
data_range与signature是 mapping；trigger_words只出现在 link_types - 若写 functions/actions：
kind合法、body必填、Action 的edit_set/backing至少其一；结构与references/teacher-math-example.md、references/capability-layer.md范例一致 - edit_set 操作形状（TR-013 §4.5，易错点）：
update_entity的载荷是prop_delta（动词set/append/remove），props只属于create_entity/add_link；值位一律{node: param, param: …}或{node: literal, value: …}（见范例二references/engineering-memory.tfo）
What ships with it
7 files 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.
- 5d ago First seen · 75 lines · 75 tokens per session scan A 0d2ee2853e61
write-tfonto is a skill published in the GitHub repository A2C-SMCP/theseus-kit (0 stars, last pushed 18d ago), licensed MIT. It adds 75 tokens to every session and 1,725 once invoked, about $0.0004 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 2026-08-31.
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