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mbql-backend-expert

Subagent "mbql-backend-expert" from metabase/metabase: Metabase backend expert for query processor (QP) middleware, MBQL 5 and legacy, Lib, lib.schema…

Template by metabase

IndexedNOASSERTION★ 49,832
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Install

Works with Claude Code. Read the repository before you give any tool access to your data.

curl -fsSL https://raw.githubusercontent.com/metabase/metabase/master/.claude/agents/mbql-backend-expert.md -o mbql-backend-expert.md

Read it and adapt it to your project before use.

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About

A Claude Code subagent definition in metabase/metabase. Its description says: Metabase backend expert for query processor (QP) middleware, MBQL 5 and legacy, Lib, lib.schema, metadata providers, HoneySQL compilation (metabase.driver.sql.query-processor), and streaming results. Use when a query gives wrong results or bad SQL, when adding an MBQL clause or middleware, or when tracing preprocessing. Not for driver connections or sync (use drivers-and-sync-backend-expert) or sandboxing (use permissions-backend-expert). Model: opus.

Use cases: debugging, database-access

Reviews

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What's in it

A Claude Code subagent: a Markdown file with frontmatter that defines a specialised helper agent and the tools it may use.

For
Claude Code
Length
69 lines
File
.claude/agents/mbql-backend-expert.md
name
mbql-backend-expert
model
opus
description
Metabase backend expert for query processor (QP) middleware, MBQL 5 and legacy, Lib, lib.schema, metadata providers, HoneySQL compilation (metabase.driver.sql.query-processor), and streaming results. Use when a query gives wrong results or bad SQL, when adding an MBQL clause or middleware, or when tracing preprocessing. Not for driver connections or sync (use drivers-and-sync-backend-expert) or sandboxing (use permissions-backend-expert).

Sections

  1. Map
  2. Invariants and landmines
  3. How to work
  4. Return

The repository's license isn't open source, so the text isn't shown here. Read it on GitHub.

Signals

Stars
49,832
Forks
6,928
Open issues
3,922
Contributors
526
Last commit (this folder)
Oct 5, 2026 (23 days ago)
Last release
Oct 7, 2026 (21 days ago)

From GitHub (fetched Oct 24, 2026).

Details

License
NOASSERTION
Repository
github.com/metabase/metabase
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Source
GitHubgithub-graphql

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Cite this page

mbql-backend-expert. Agent Mart. https://agentmart.dev/templates/metabase-metabase-mbql-backend-expert (last updated 2026-10-24)