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 aryaniyaps/lamina --skill lamina-product-behaviorgit clone --depth 1 https://github.com/aryaniyaps/laminaWrote 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/aryaniyaps/lamina/lamina-product-behavior)<a href="https://agentmods.dev/skills/aryaniyaps/lamina/lamina-product-behavior"><img src="https://agentmods.dev/badge/skills/aryaniyaps/lamina/lamina-product-behavior/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/aryaniyaps/lamina/lamina-product-behavior"><img src="https://agentmods.dev/badge/skills/aryaniyaps/lamina/lamina-product-behavior.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 | $0.00082 | $0.00620 |
| Opus 5.5 | $0.00033 | $0.00248 |
| Sonnet 5.5 | $0.00016 | $0.00124 |
| Haiku 4.5 | $0.00008 | $0.00062 |
Grade A, and why
lamina-product-behavior 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 — 38 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Lamina Product Behavior
Reference-loading protocol
- Match the request's primary runtime-truth decision to one row below.
- Open that linked reference before answering. Add another only when a second decision materially changes the answer; do not preload the directory.
- Start the response with
Using lamina-product-behavior: <topic path(s)>so the selected behavior lens is auditable.
Topic index
| Runtime signal | Read | Adds |
|---|---|---|
| Need the represented domain model to match how actors understand the task | Product Behavior | entities, permissions, workflows, surfaces, and illegal states |
| Need to choose how much power or complexity each actor sees | Product Density | actor- and surface-specific complexity budgets |
| One mutation must update, notify, invalidate, audit, or retry elsewhere | Side Effects | primary effect, downstream effects, delivery lifecycle, and failure recovery |
| Need a rule that must hold in every valid state | Invariants | explicit predicates and violation probes |
| Views may lag or disagree after a state change | Consistency Guarantees | strong, eventual, and read-your-writes product promises |
| An operation may repeat, race, conflict, or arrive after state changed | Idempotency and Concurrency | duplicate safety, conflict policy, and fencing |
| Behavior depends on zones, dates, recurrence, duration, deadline, or correction | Time Semantics | explicit temporal meaning and boundary behavior |
| A workflow requires prior setup, ownership, state, or another workflow | Dependencies | prerequisite edges and unmet behavior |
| Need to decide which domain owns a rule or what data crosses a boundary | Modularity Boundaries | information hiding and cohesive ownership |
| Several roles or surfaces must agree on the same entity and lifecycle | Multi-View Integrity | handoffs, visibility, and cross-view truth |
What ships with it
10 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.
- references/consistency-guarantees.md 2.0 KB
- references/dependencies.md 1.4 KB
- references/idempotency-concurrency.md 1.7 KB
- references/invariants.md 2.7 KB
- references/modularity-boundaries.md 2.0 KB
- references/multi-view-integrity.md 2.0 KB
- references/platform-posture.md 587 B
- references/product-behavior.md 2.1 KB
- references/side-effects.md 2.8 KB
- references/time-semantics.md 3.9 KB
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 · 38 lines · 82 tokens per session scan A 5c718d753aa9
lamina-product-behavior is a skill published in the GitHub repository aryaniyaps/lamina (121 stars, last pushed 10d ago), licensed Apache-2.0. It adds 82 tokens to every session and 620 once invoked, about $0.0003 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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