What is lookup-vendor?

A skill for finding a company's public trust center and the security or compliance frameworks listed there. A trust center is a website where a vendor publishes security information and certifications.

Use it to look up vendors by domain or name, find their trust-center platform, and review listed frameworks such as SOC 2, ISO 27001, HIPAA, or CSA STAR.

It reduces the time spent searching for reliable vendor security documentation and helps distinguish exact company matches from ambiguous names.

lookup-vendor — Skill for Claude Code and Codex by trustlists

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 trustlists/trustlists-plugin --skill lookup-vendor

Clone the repo

git clone --depth 1 https://github.com/trustlists/trustlists-plugin

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/trustlists/trustlists-plugin/lookup-vendor.svg)](https://agentmods.dev/skills/trustlists/trustlists-plugin/lookup-vendor)

Your own site

<a href="https://agentmods.dev/skills/trustlists/trustlists-plugin/lookup-vendor"><img src="https://agentmods.dev/badge/skills/trustlists/trustlists-plugin/lookup-vendor.svg" alt="Measured on agentmods" height="20"></a>

Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,036 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 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	$0.00061	$0.01036
Opus 5	$0.00030	$0.00518
Sonnet 5	$0.00012	$0.00207
Haiku 4.5	$0.00006	$0.00104

Measured 6d ago against content hash 0a493254766f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

lookup-vendor 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 6d 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/lookup-vendor/SKILL.md · 97 lines

How it starts

The opening of the file, as written. The whole thing — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Look up a vendor's trust center

This skill helps you find vendor-published security resources using the trustlists directory. You have three relevant MCP tools:

trustlists_lookup - exact domain match (fastest, most reliable)
trustlists_search - name or partial-domain search
trustlists_browse - filter by platform, listed framework, or CSA STAR level

Workflow

Step 1: Pick the right tool

User gave you a domain (stripe.com, https://datadog.com) - use trustlists_lookup
User gave you a company name (Stripe, Datadog) - use trustlists_search first; if there is an obvious match, follow up with trustlists_lookup
User asks for a group ("SafeBase vendors", "CSA STAR Level 2") - use trustlists_browse
Ambiguous name (for example, "Apple") - ask the user to disambiguate

Step 2: Read the response

The tool returns structured JSON. Pay attention to:

found (lookup) or inDirectory (search) - the vendor has a public directory record
certifications - frameworks or compliance labels listed on that record
csaStarLevel - if 1 or 2, the record links CSA STAR metadata
platform - the detected trust-center platform
lastVerified - when trustlists last checked the trust-center URL, not an audit date
directoryUrl - the public trustlists source page

Step 3: Format the response for the user

Structure your answer like this:

**[Vendor name]**

- Directory record: [directoryUrl]
- Vendor trust center: [trustCenter URL, only when available]
- Platform: [platform]
- Listed frameworks: [list, comma-separated]
- CSA STAR: [Level N / Not listed]
- Last verified: [date]

Then give a one-sentence factual interpretation. Examples:

"Stripe's directory record lists PCI DSS and links its self-hosted trust center."
"Datadog's record lists SOC 2 and ISO 27001; its trust center is hosted on SafeBase."
"Acme Corp is not in the current public directory."

Step 4: Suggest follow-ups when relevant

Read the full file on GitHub · 97 lines

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.

6d ago First seen · 97 lines · 61 tokens per session scan A 0a493254766f

Subscribe to this mod's changes

lookup-vendor is a skill published in the GitHub repository trustlists/trustlists-plugin (0 stars, last pushed 7d ago), licensed Apache-2.0. It adds 61 tokens to every session and 1,036 once invoked, about $0.0003 per session on Opus 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 2026-08-31.

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