What is assay-inventory?

A security-scanning server for Claude Code plugins and MCP servers. MCP is a standard way for an AI assistant to connect to external tools and data.

Listing and reading files, searching their contents, starting scans, recording findings, and producing a final scan verdict.

It helps inspect add-ons for security issues and record evidence-backed findings instead of relying only on manual review.

assay-inventory — Command for Claude Code by chawdamrunal/assay

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.

Clone the repo

git clone --depth 1 https://github.com/chawdamrunal/assay

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/commands/chawdamrunal/assay/assay-inventory/github.svg)](https://agentmods.dev/commands/chawdamrunal/assay/assay-inventory)

Your own site

<a href="https://agentmods.dev/commands/chawdamrunal/assay/assay-inventory"><img src="https://agentmods.dev/badge/commands/chawdamrunal/assay/assay-inventory/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/commands/chawdamrunal/assay/assay-inventory"><img src="https://agentmods.dev/badge/commands/chawdamrunal/assay/assay-inventory.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 20 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 223 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00020	$0.00223
Opus 5.5	$0.00008	$0.00089
Sonnet 5.5	$0.00004	$0.00045
Haiku 4.5	$0.00002	$0.00022

Measured 2mo ago against content hash 9ea0eb8091f6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

assay-inventory scanned grade B 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 2mo 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

- **MCP servers** — entries under `mcpServers` in `~/.claude/settings.json`

plugin/commands/assay-inventory.md · 31 lines

What it actually says

/assay-inventory

Enumerate everything on the local machine that Assay can scan.

Usage

/assay-inventory

What this command does

Runs assay inventory. The output is a table with one row per detected item:

Claude Code plugins — directories under ~/.claude/plugins/ with a plugin.json
MCP servers — entries under mcpServers in ~/.claude/settings.json
Hooks — every PreToolUse, PostToolUse, UserPromptSubmit, etc.
Settings overrides — permissions.allow / permissions.deny grants

For each item, the table shows name, kind, version (if declared), and source URL (if declared).

This is the input source for /assay-scan: you can pick a target by name from the inventory.

Execute:

assay inventory

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.

2mo ago First seen · 31 lines · 20 tokens per session scan B 9ea0eb8091f6

Subscribe to this mod's changes

assay-inventory is a command published in the GitHub repository chawdamrunal/assay (4 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 20 tokens to every session and 223 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Claude Code LLM Security ai-security devsecops mcp security-scanner

assay-inventory next to 6 commands from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
assay-inventorychawdamrunal/assay	Command	4	3mo ago	Apache-2.0	B	20	Claude Code
sicario.assessdfirs1car1o/sicario-spec	Command	5	5d ago	MIT	A	0	Claude Code
sicario.reviewdfirs1car1o/sicario-spec	Command	5	5d ago	MIT	A	0	Claude Code
checklistgithub/spec-kit	Command	149k	today	MIT	A	13	Claude Code
clarifygithub/spec-kit	Command	149k	today	MIT	A	27	Claude Code
specifygithub/spec-kit	Command	149k	today	MIT	A	13	Claude Code
convergegithub/spec-kit	Command	149k	today	MIT	A	35	Claude Code

assay-inventory