What is jewellery-spec?

A read-only source-checking helper for jewellery manufacturing measurements. It looks up values such as ring sizes, minimum wall thickness, casting limits, and material shrinkage, and returns a value with its published source when it finds one.

Use it before adding or auditing jewellery-related measurements, especially numbers that someone will use to make or inspect a product.

It reduces the risk of putting unsupported manufacturing numbers into code. It can also check figures that are already present.

How GeekatplayStudio/Meshwright configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to GeekatplayStudio/Meshwright. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/GeekatplayStudio/Meshwright/main/.claude/agents/jewellery-spec.md

Clone the repo

git clone --depth 1 https://github.com/GeekatplayStudio/Meshwright

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/geekatplaystudio/meshwright/jewellery-spec/github.svg)](https://agentmods.dev/agents/geekatplaystudio/meshwright/jewellery-spec)

Your own site

<a href="https://agentmods.dev/agents/geekatplaystudio/meshwright/jewellery-spec"><img src="https://agentmods.dev/badge/agents/geekatplaystudio/meshwright/jewellery-spec/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/geekatplaystudio/meshwright/jewellery-spec"><img src="https://agentmods.dev/badge/agents/geekatplaystudio/meshwright/jewellery-spec.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 61 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 697 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.

Origin unknown 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.

Model	Per session	Once invoked
Fable 5.1	$0.00061	$0.00697
Opus 5.5	$0.00024	$0.00279
Sonnet 5.5	$0.00012	$0.00139
Haiku 4.5	$0.00006	$0.00070

Measured 1mo ago against content hash ea7ec5537b2b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

jewellery-spec 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.

.claude/agents/jewellery-spec.md · 61 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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.

1mo ago First seen · 61 lines · 61 tokens per session scan A ea7ec5537b2b

Subscribe to this mod's changes

jewellery-spec is an agent published in the GitHub repository GeekatplayStudio/Meshwright (62 stars, last pushed 1mo ago), with no licence file. It adds 61 tokens to every session and 697 once invoked, about $0.0002 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 2026-09-27.

3d 3d-printing desktop-app glTF mcp mcp-server

jewellery-spec next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
jewellery-specGeekatplayStudio/Meshwright	Agent	62	1mo ago	none	A	61	Claude Code
tauri-security-reviewerkevinlin/cowork-z	Agent	13	7d ago	MIT	A	91	Claude Code
dangerous-agentryo-ebata/cc-audit	Agent	26	yesterday	MIT	C	0	Claude Code
agent-installeralexmmatos/arthur-mcp	Agent	2	3mo ago	MIT	A	32	Claude Code
tlfa-mc/vibe-cading	Agent	8	24d ago	AGPL-3.0	A	91	Claude Code
playwright-test-generatormicrosoft/playwright	Agent	99k	yesterday	Apache-2.0	A	151	Claude Code
.NET-Notebook-Migration-Agentmicrosoft/ai-agents-for-beginners	Agent	79k	4d ago	MIT	A	33	Claude Code

Meshwright: Agent for Claude Code