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 ontology-of-everything/SemanticSkills --skill concept-prdgit clone --depth 1 https://github.com/ontology-of-everything/SemanticSkillsWrote 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/ontology-of-everything/semanticskills/concept-prd)<a href="https://agentmods.dev/skills/ontology-of-everything/semanticskills/concept-prd"><img src="https://agentmods.dev/badge/skills/ontology-of-everything/semanticskills/concept-prd/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/ontology-of-everything/semanticskills/concept-prd"><img src="https://agentmods.dev/badge/skills/ontology-of-everything/semanticskills/concept-prd.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00045 | $0.01031 |
| Opus 5 | $0.00023 | $0.00515 |
| Sonnet 5 | $0.00009 | $0.00206 |
| Haiku 4.5 | $0.00005 | $0.00103 |
Grade A, and why
concept-prd 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 yesterday.
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
概念 PRD
仅在用户显式调用 $concept-prd 时运行。
目标
输入：concept-design 确认过的模型（concepts、syncs、依赖图、排除与未决）。输出：总体 PRD + 每概念一份 CONCEPT.md + 一份 SYNCS.md。概念设计即设计规格，本技能只转录与编排。交付后代码落地 → concept-implementation；模型缺口 → 回 concept-design。
原则
- 只转录，不发明；缺口回上游，不在文档里填补。
- 跨概念行为与依赖的权威落点为：
SYNCS.md（行为）与总体 PRD（产品依赖及派生同步图）。概念规格里的上下文只以类型参数列表出现（Reserving [User, Slot]），散文备注只进## notes。 - 规格贴近代码：模块目录已存在就与代码共存，未就绪先集中暂存，落地时由
concept-implementation迁移。 - 共存规格是模型的权威持久形态；已确认变更可直接做最小编辑，并同步索引/派生图，避免全量生成覆盖人工维护信息。
流程
-
定位落点——每个概念与 syncs 各得唯一路径：
docs/prd/README.md # 总体 PRD（始终集中） <模块目录>/CONCEPT.md # 模块目录已存在时与代码共存 <syncs 目录>/SYNCS.md # 转录期单文件 docs/prd/concepts/<名>.md # 暂存位，格式同 CONCEPT.md docs/prd/SYNCS.md # 暂存位 -
总体 PRD：需求与 Misfits；概念索引（每概念一行 purpose + 规格链接）；同步图与依赖图与子集；排除与未决全量转录。
-
每概念 CONCEPT.md：按
references/templates.md；principle 导出代表性验收场景；actions/state 的边界与不变量导出补充场景，均附模型出处。 -
SYNCS.md：按
references/templates.md转录app/include/sync的 when / where / then；用// flow:注释分组，不按域分节；含错误 sync。 -
逐条核对「命题」后交付。
命题
- 模型的每个部分（concepts、syncs、依赖图、排除与未决）都有唯一落点，无遗漏无重复。
- 每份
CONCEPT.md四节不依赖其他概念定义（同名局部类型参数合法），无## interactions/## dependencies段。 - 每条验收场景可追溯到 principle 或动作/状态契约；文档无模型外的新信息（notes 占位除外）。
SYNCS.md单文件、app+include+sync块；可达失败有明确处理策略；查询空集不冒充错误输出。- 总体 PRD 可导航到全部规格文件，链接有效。
记法与模板
CONCEPT.md / SYNCS.md 采用基于 Beyond Objects 的本仓 Markdown 记法（见 references/templates.md），与 concept-design 产出一致。concept-guardrails 的 drift、map 模式按同一记法消费。
参考
| 何时读 | 文件 |
|---|---|
流程第 3–4 步：CONCEPT.md 与 SYNCS.md 模板 |
references/templates.md |
| 流程第 3–4 步：填好的餐厅订位例（转录后的文件形态） | references/example-reserving.md |
| 核验"规格即规范"的出处 | references/sources.md |
What ships with it
4 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.
- yesterday Changed · +2 lines · -18 tokens per session 366e72cdaea7
- 4d ago First seen · 58 lines · 63 tokens per session scan A dc6fe7e29760
concept-prd is a skill published in the GitHub repository ontology-of-everything/SemanticSkills (8 stars, last pushed 2d ago), licensed Apache-2.0. It adds 45 tokens to every session and 1,031 once invoked, about $0.0002 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 2026-09-08.
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