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.
npx agentmods add skills/metabase/agent-skills/metabase-database-metadatanpx skills add metabase/agent-skills --skill metabase-database-metadatagit clone --depth 1 https://github.com/metabase/agent-skillsWrote 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.
[](https://agentmods.dev/skills/metabase/agent-skills/metabase-database-metadata)<a href="https://agentmods.dev/skills/metabase/agent-skills/metabase-database-metadata"><img src="https://agentmods.dev/badge/skills/metabase/agent-skills/metabase-database-metadata.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00085 | $0.01799 |
| Opus 5 | $0.00043 | $0.00899 |
| Sonnet 5 | $0.00017 | $0.00360 |
| Haiku 4.5 | $0.00009 | $0.00180 |
Grade C, and why
metabase-database-metadata scanned grade C with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
rm -rf .metadata/databases Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -sf -X POST "$METABASE_URL/api/ee/serialization/metadata/export?with-databases=true&with-tables=true&with-fields=true" \ How it starts
The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Metabase Database Metadata Format
Metabase represents database metadata — synced databases, their tables, and their fields — as a tree of YAML files. Files are diff-friendly: numeric IDs are omitted entirely, and foreign keys use natural-key tuples like ["Sample Database", "PUBLIC", "ORDERS"] instead of database identifiers.
The format is defined by a specification bundled alongside this file as spec.md (upstream source: metabase/database-metadata). The same project ships a CLI (@metabase/database-metadata on npm) that converts the raw JSON exported from a Metabase instance into the YAML tree described by the spec.
Canonical layout
All metadata for a project lives under a top-level .metadata/ directory:
.metadata/databases/— the YAML tree. This is the canonical source for the agent. Read these files to understand the schema, columns, types, and FK relationships..metadata/table_metadata.json— the raw JSON exported from the Metabase instance. Potentially multi-megabyte (or multi-gigabyte) JSON with flatdatabases/tables/fieldsarrays. Never open, grep, or pass it to tools. It exists only as input to the extractor.
The .metadata/ directory should be gitignored. On large warehouses the extracted metadata can reach gigabytes — committing it would make the repo painful or unusable.
First-time setup
Do not run any of the steps below proactively at session start. Only run them when the user explicitly asks to fetch metadata, set up the workflow, or requests something that plainly requires knowledge of the database schema (e.g. "write a query against ORDERS", "describe what tables exist").
When setup is triggered:
1. Ensure .metadata/ is gitignored
Read the repo's .gitignore and confirm .metadata/ is listed. If it isn't, ask the user before modifying .gitignore — e.g.:
.metadata/is not in.gitignore. Committing it would bloat the repo (metadata can be gigabytes). Shall I add it?
What ships with it
2 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.
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 · 117 lines · 85 tokens per session scan C 72c10342c6ea
metabase-database-metadata is a skill published in the GitHub repository metabase/agent-skills (41 stars, last pushed 11d ago), licensed MIT. It adds 85 tokens to every session and 1,799 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it C with 2 findings (recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
schema-exploration
Lists tables, describes columns and data types, identifies foreign key relationships, and maps entity relationships in a database. Use when the user asks about database schema, table structure, column types, what tables exist, ERD, foreign keys, or how entities relate.
sdk-design
Doctrine for designing and evolving any SDK Grida ships — TypeScript, Rust, or otherwise. "SDK" here means a surface that crosses a foreign-or-foreign-treated boundary: published packages, separately-versioned consumers, FFI bindings, public-by-design modules. An SDK's job is to refuse; a strict, honest surface…
ha-data-stores
Map of Hope Agent's local data stores and safe read-only query workflow. Use when the user asks where Hope Agent stores data, wants to inspect sessions/messages/memory/logs/background jobs/knowledge indexes/settings, asks the model to query local app data, or debugging requires checking persisted state. Trigger…
supabase
Supabase / PostgREST Row-Level-Security playbook — pull the anon (or leaked servicerole) key out of the frontend JS, map tables from the auto-generated OpenAPI spec, test anonymous RLS READ disclosures (PII/secret leaks), and anonymous RLS WRITE abuse (insert/update/delete — e.g. forging…
nornicdb-cypher-queries
Pick fast, predictable Cypher query shapes in NornicDB — point lookups, batch retrieval, pagination, search, traversal, batched UNWIND/MERGE writes, cleanup, multi-tenant isolation. Use when writing or reviewing Cypher whose latency or throughput matters; maps user intent to the executor's hot-path query templates.
dsql
Build with Aurora DSQL — manage schemas, execute queries, handle migrations, diagnose query plans, diagnose cluster performance, load data, and develop applications with a serverless, distributed SQL database. Covers IAM auth, multi-tenant patterns, MySQL-to-DSQL and PostgreSQL-to-DSQL schema conversion, foreign key…