spec-check

spec-check is an agent for Claude Code from Automattic/wordpress-atmosphere. It costs 31 tokens per session (989 once invoked), scanned A, original, no licence file.

An agent instruction for checking whether the WordPress ATmosphere plugin follows the AT Protocol and standard.site specifications.

In plain words
What is it for?
Use it to verify Lexicon formats, OAuth flows, and record-schema validation.
Why use it?
It helps detect incorrect data formats, login flows, or record schemas before they cause compatibility problems.

Agent for Claude Code

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.

agentmods
npx agentmods add agents/automattic/wordpress-atmosphere/spec-check
Clone the repo
git clone --depth 1 https://github.com/Automattic/wordpress-atmosphere

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.

agentmods badge for spec-check

README.md
[![agentmods](https://agentmods.dev/badge/agents/automattic/wordpress-atmosphere/spec-check.svg)](https://agentmods.dev/agents/automattic/wordpress-atmosphere/spec-check)
Your own site
<a href="https://agentmods.dev/agents/automattic/wordpress-atmosphere/spec-check"><img src="https://agentmods.dev/badge/agents/automattic/wordpress-atmosphere/spec-check.svg" alt="Measured on agentmods" height="20"></a>
Per session 31 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 989 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00031 $0.00989
Opus 5 $0.00015 $0.00495
Sonnet 5 $0.00006 $0.00198
Haiku 4.5 $0.00003 $0.00099

Measured 4d ago against content hash 1c692ddc4747, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

spec-check scanned grade A with 1 finding 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 4d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

If the user specifies a live PDS or handle, use `curl` to test actual responses. Otherwise, audit the source code.
.claude/agents/spec-check.md · 76 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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.

  1. 4d ago First seen · 76 lines · 31 tokens per session scan A 1c692ddc4747

Subscribe to this mod's changes

spec-check is an agent published in the GitHub repository Automattic/wordpress-atmosphere (51 stars, last pushed 6d ago), with no licence file. It adds 31 tokens to every session and 989 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.