lamina-evaluation

lamina-evaluation is a skill for Claude Code, Codex from aryaniyaps/lamina. It costs 67 tokens per session (333 once invoked), scanned A, original, Apache-2.0.

A product-review guide for testing how people use a built product, checking it against expert criteria, and judging whether its claims are supported by measurements.

In plain words
What is it for?
Use it for persona-based walkthroughs, expert reviews, success metrics, analytics interpretation, and checking quantitative claims.
Why use it?
It provides a repeatable way to find usability problems and separate measured evidence from unsupported claims.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it for persona-based walkthroughs, expert reviews, success metrics, analytics interpretation, and checking quantitative claims.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aryaniyaps/lamina/lamina-evaluation
Install

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.

Any agent
npx skills add aryaniyaps/lamina --skill lamina-evaluation
Clone the repo
git clone --depth 1 https://github.com/aryaniyaps/lamina

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for lamina-evaluation

README.md
[![agentmods](https://agentmods.dev/badge/skills/aryaniyaps/lamina/lamina-evaluation/github.svg)](https://agentmods.dev/skills/aryaniyaps/lamina/lamina-evaluation)
Your own site
<a href="https://agentmods.dev/skills/aryaniyaps/lamina/lamina-evaluation"><img src="https://agentmods.dev/badge/skills/aryaniyaps/lamina/lamina-evaluation/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.

agentmods 80×15 button for lamina-evaluation

Your own site · 80×15
<a href="https://agentmods.dev/skills/aryaniyaps/lamina/lamina-evaluation"><img src="https://agentmods.dev/badge/skills/aryaniyaps/lamina/lamina-evaluation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 67 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 333 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00067 $0.00333
Opus 5.5 $0.00027 $0.00133
Sonnet 5.5 $0.00013 $0.00067
Haiku 4.5 $0.00007 $0.00033

Measured 1mo ago against content hash d244f3ab193a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

lamina-evaluation 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.

skills/lamina-evaluation/SKILL.md · 30 lines

What it actually says

Lamina Evaluation

Reference-loading protocol

  1. Match the request's primary evaluation method to one row below.
  2. Open that linked reference before answering. Add another only when a second method materially changes the answer; do not preload the directory.
  3. Start the response with Using lamina-evaluation: <topic path(s)> so the selected evaluation lens is auditable.

Topic index

Evaluation signal Read Adds
Need actors to attempt workflows and edge probes on a built product Actor Evaluation Persona-based walkthrough method and reproducible blockers
Need specialists to inspect a contract or live product through explicit lenses Expert Lens Review parallel lens coverage tied to evidence and contract refs
Need success metrics, analytics interpretation, or experiment claims Metrics Discipline measurement boundaries and anti-fabrication rules

Working rule

Use the smallest sufficient reference set. Actor evaluation requires a runnable product; use expert review before build or when a lens-specific inspection is requested. Pair either with metrics discipline only when real measurements or a measurement plan are in scope.

Files

What ships with it

3 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.

Changes

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.

  1. 1mo ago First seen · 30 lines · 67 tokens per session scan A d244f3ab193a

Subscribe to this mod's changes

lamina-evaluation is a skill published in the GitHub repository aryaniyaps/lamina (121 stars, last pushed 10d ago), licensed Apache-2.0. It adds 67 tokens to every session and 333 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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