atlan-search

atlan-search is a skill for Claude Code from atlanhq/agent-toolkit. It costs 159 tokens per session (2,043 once invoked), scanned A, original, MIT.

A guide to searching Atlan, a data catalog that stores information about data assets such as tables, owners, tags, quality checks, and lineage rather than the rows themselves. It maps common discovery questions to the appropriate catalog tools.

In plain words
What is it for?
Use it to find catalog assets, inspect their metadata, count or filter them, trace upstream and downstream lineage, check data quality, and look up users or teams.
Why use it?
It helps avoid using a broad search when an exact filter, asset lookup, count, or lineage query is needed. It also clarifies when the catalog cannot answer a question about row values.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the atlan plugin — 1 skill, 1 MCP server shipped together

Good fit Use it to find catalog assets, inspect their metadata, count or filter them, trace upstream and downstream lineage, check data quality, and look up users or teams.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/atlanhq/agent-toolkit/atlan-search
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 atlanhq/agent-toolkit --skill atlan-search
Clone the repo
git clone --depth 1 https://github.com/atlanhq/agent-toolkit

Made for: Claude Code.

Or install atlan, the plugin that ships this one along with the rest of its 1 skill, 1 MCP server.

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 atlan-search

README.md
[![agentmods](https://agentmods.dev/badge/skills/atlanhq/agent-toolkit/atlan-search/github.svg)](https://agentmods.dev/skills/atlanhq/agent-toolkit/atlan-search)
Your own site
<a href="https://agentmods.dev/skills/atlanhq/agent-toolkit/atlan-search"><img src="https://agentmods.dev/badge/skills/atlanhq/agent-toolkit/atlan-search/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 atlan-search

Your own site · 80×15
<a href="https://agentmods.dev/skills/atlanhq/agent-toolkit/atlan-search"><img src="https://agentmods.dev/badge/skills/atlanhq/agent-toolkit/atlan-search.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 159 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,043 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00159 $0.02043
Opus 5.5 $0.00064 $0.00817
Sonnet 5.5 $0.00032 $0.00409
Haiku 4.5 $0.00016 $0.00204

Measured 29d ago against content hash 3ed11ceeae27, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

atlan-search 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 29d 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/atlan-search/SKILL.md · 141 lines

How it starts

The opening of the file, as written. The whole thing — 141 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Searching the Atlan catalog

The catalog holds metadata — assets, their names, owners, certification, tags, glossary links, domains, quality checks, lineage. It does not hold row values. Pick the entry point from the ask, then apply the rules below.

Pick the tool

The ask Tool
Topic / natural-language discovery — "what data do we have about churn", "which table has retention rate" semantic_search
Counts and breakdowns — "how many verified tables", "assets by connector" search_assets with return_count_only / aggregations
Exact, deterministic attribute filters — name prefix, certification, connector, type, tag, domain, term search_assets
Full detail on assets you already have GUIDs for — columns, README, custom metadata values get_assets
Upstream / downstream dependencies traverse_lineage (resolve the GUID first)
Data quality checks and rules search_assets on the DQ types — see references/data-quality.md
Which tags or custom-metadata sets exist on this tenant resolve_metadata
A person or a team get_users / get_groups
Which attributes a type supports describe_asset_type
Row-level data values in the source warehouse query_assets
Skills, knowledge files, agents (context repos) read_artifact
How a product feature works search_atlan_docs

semantic_search has its own planner: it reads the whole question, decomposes it, and applies filters itself. search_assets does exactly what you tell it and nothing more. Reach for semantic_search when the ask is phrased as a question; search_assets when you already know the precise filter.

The rules that decide whether you get the right answer

1. Be precise about asset type. "tables" means asset_type="Table" — not Views, not Columns. "dashboards" means the BI dashboard types. asset_type is singular and takes either a string or a list (["Table", "View"]). Only go broad when the user says "all assets", and when you do, exclude the internal plumbing types (see references/filters.md).

Read the full file on GitHub · 141 lines

Files

What ships with it

6 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. 29d ago First seen · 141 lines · 159 tokens per session scan A 3ed11ceeae27

Subscribe to this mod's changes

atlan-search is a skill published in the GitHub repository atlanhq/agent-toolkit (41 stars, last pushed yesterday), licensed MIT. It adds 159 tokens to every session and 2,043 once invoked, about $0.0006 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 2026-09-29.

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