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 ljucask/pureinn-product-development --skill pm-business-rules-librarygit clone --depth 1 https://github.com/ljucask/pureinn-product-developmentWrote 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/ljucask/pureinn-product-development/pm-business-rules-library)<a href="https://agentmods.dev/skills/ljucask/pureinn-product-development/pm-business-rules-library"><img src="https://agentmods.dev/badge/skills/ljucask/pureinn-product-development/pm-business-rules-library/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/ljucask/pureinn-product-development/pm-business-rules-library"><img src="https://agentmods.dev/badge/skills/ljucask/pureinn-product-development/pm-business-rules-library.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 | $0.00106 | $0.04921 |
| Opus 5 | $0.00053 | $0.02461 |
| Sonnet 5 | $0.00021 | $0.00984 |
| Haiku 4.5 | $0.00011 | $0.00492 |
Grade A, and why
pm-business-rules-library 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 12d 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 — 497 lines — stays where its author put it; the contents beside it link to each section on GitHub.
PM - Business Rules Library
Agent mode (--agent)
Supports --agent: runs autonomously in a subagent, drafts the artifact from existing inputs, and returns a short summary + coverage note.
- No flag → interactive (default); if inputs are heavy, offer agent mode.
--agent→ obey. First check inputs are complete. Anything missing: do NOT invent it - mark[ASSUMED - what/why]in the output and summary. Never hallucinate to fill a gap.- Review required: the artifact contains commitments - after drafting, require the user's review before finalizing; do not close decisions autonomously.
Artifact language
Checks state.json → artifact_language. Default (unset or "English"): no change in behavior.
- If set to a non-English language: write rule prose (rule text, rationale, decision table row descriptions) in that language.
- Never translate:
BR-ID/TBL-ID, frontmatter keys and enum values (status: Draft/Final), section headers, file names - these stay English always, regardless of the setting. This matters more here than elsewhere:pm-reconcile,pm-stripe's security-review routing, and Impact Analysis all grep BR-IDs literally - a translated ID would silently break them.
What this skill does
Builds Live Registers 2 and 3 of 4:
business_rules.md- Business Rules Library: centralized catalog of non-negotiable rules with unique IDsdecision_models.md- Decision Models Matrix: decision tables and logic matrices for complex conditions
These registers replace the BRD as standalone documents. Business rules are no longer buried in a per-Feature-Set spec document - they live in a shared, versioned catalog that all Feature Cards reference by ID.
What belongs here:
- Corporate policies that apply across features (e.g., payment release rules)
- Compliance and regulatory requirements (GDPR, tax, data retention)
- Security and authorization rules
- Business logic that applies to multiple features or Feature Sets
- Decision tables with multiple conditions and outcomes
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.
- 12d ago First seen · 497 lines · 106 tokens per session scan A 94f006a3b100
pm-business-rules-library is a skill published in the GitHub repository ljucask/pureinn-product-development (2 stars, last pushed 2d ago), licensed MIT. It adds 106 tokens to every session and 4,921 once invoked, about $0.0005 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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