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-rule-coregit 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-rule-core)<a href="https://agentmods.dev/skills/ljucask/pureinn-product-development/pm-business-rule-core"><img src="https://agentmods.dev/badge/skills/ljucask/pureinn-product-development/pm-business-rule-core/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-rule-core"><img src="https://agentmods.dev/badge/skills/ljucask/pureinn-product-development/pm-business-rule-core.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 | $0.00065 | $0.01663 |
| Opus 5 | $0.00032 | $0.00831 |
| Sonnet 5 | $0.00013 | $0.00333 |
| Haiku 4.5 | $0.00006 | $0.00166 |
Grade A, and why
pm-business-rule-core 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 — 176 lines — stays where its author put it; the contents beside it link to each section on GitHub.
PM - Business Rule: Core Operational Rule (JIT Helper)
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.
What this skill does
Adds a single High or Medium priority operational rule to domain/business_rules.md.
A rule belongs here when:
- It governs regular system behavior in a specific domain (matching, pricing, trust, fulfillment, SLA)
- It CAN have exceptions or context-dependent variations (unlike Critical invariants)
- Violating it degrades quality or fairness but does not cause immediate irreversible damage
- It is referenced by feature designs when implementing the business logic
If the rule has NO exceptions and violation causes financial/legal harm → use pm-business-rule-critical.
If it is a compliance, regulatory, or policy rule → use pm-business-rule-governance.
When to run: During pm-feature-design when the JIT design reveals business logic that should be centralized. Or standalone when operational rules need to be formalized before a feature enters build.
Dependencies
Required before running:
pm-business-rules-library-domain/business_rules.mdmust exist (initialized in Phase 4)pm-entity-registry- entity context for scoping the rule
Produces artifacts used by:
pm-feature-design- JIT design reads BR-IDs when defining Feature Card Section 1 (Biznis Mantinely)- Build phase - developers implement the business logic
Step 0: Current state check
If domain/business_rules.md does not exist yet, do not attempt to create it here - tell the user to run /pm-business-rules-library first (it initializes the register), then return to this skill.
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 · 176 lines · 65 tokens per session scan A c07c6803778f
pm-business-rule-core is a skill published in the GitHub repository ljucask/pureinn-product-development (2 stars, last pushed yesterday), licensed MIT. It adds 65 tokens to every session and 1,663 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 2026-08-31.
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