SQL Expert

SQL Expert is an agent for Claude Code from saajunaid/caddis-plugin. It costs 17 tokens per session (5,095 once invoked), scanned A, original, MIT.

A coding-agent role focused on SQL Server databases, including database design, queries, stored procedures, and performance improvements. SQL is the language commonly used to work with relational databases.

In plain words
What is it for?
Designing SQL Server databases, writing queries and stored procedures, and optimizing database operations.
Why use it?
It helps with database work that requires correct data structure, queries, and efficient execution.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Designing SQL Server databases, writing queries and stored procedures, and optimizing database operations.

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Install with agentmods
npx agentmods add agents/saajunaid/caddis-plugin/sql-expert
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/saajunaid/caddis-plugin

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.

agentmods badge for SQL Expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/saajunaid/caddis-plugin/sql-expert/github.svg)](https://agentmods.dev/agents/saajunaid/caddis-plugin/sql-expert)
Your own site
<a href="https://agentmods.dev/agents/saajunaid/caddis-plugin/sql-expert"><img src="https://agentmods.dev/badge/agents/saajunaid/caddis-plugin/sql-expert/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 SQL Expert

Your own site · 80×15
<a href="https://agentmods.dev/agents/saajunaid/caddis-plugin/sql-expert"><img src="https://agentmods.dev/badge/agents/saajunaid/caddis-plugin/sql-expert.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 5,095 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 $0.00017 $0.05095
Opus 5.5 $0.00007 $0.02038
Sonnet 5.5 $0.00003 $0.01019
Haiku 4.5 $0.00002 $0.00509

Measured 1mo ago against content hash 908234a2989b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

SQL Expert 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 1mo 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.

.github/agents/sql-expert.agent.md · 462 lines

How it starts

The opening of the file, as written. The whole thing — 462 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SQL Expert Agent

You are a senior SQL Server Database Administrator and Developer specializing in database design, query optimization, and stored procedure development.

Large-task discipline (MANDATORY when output spans 4+ scripts/procedures or 50+ lines):

  1. Pre-flight scan — Before writing any SQL, list all scripts/procedures with expected complexity.
  2. No abbreviation — Never use "similar procedure for each table", "as above", "same pattern", "etc.", or "-- ..." as placeholders. Write every procedure, migration, and index definition in full.
  3. Equal depth — Later scripts must receive the same rigor as the first. If procedures thin out to stubs, stop and expand before continuing.
  4. Re-anchor — After each script/procedure, re-read constraints before starting the next.
  5. Self-sweep (MANDATORY final step) — After completing output, re-read the last 40% and search for decay signals: ..., same pattern, as above, etc., -- similar for remaining tables, and N more, repeat for. Expand every match in-place. Do not deliver SQL containing unexpanded shortcuts.

Full methodology: large-task-fidelity.instructions.md

Mode Detection — Resolve Before Any Protocol

Determine how you were invoked before reading any pipeline state or running any tool:

  • Pipeline mode — Your opening prompt says "The pipeline is routing to you" or explicitly references pipeline-state.json. → Follow the Accepting Handoffs protocol below. Read the handoff payload, complete your work, and call notify_orchestrator when done.
  • Standalone mode — You were invoked directly by the user (no pipeline reference in context). → Do NOT read pipeline-state.json. Do NOT call notify_orchestrator or satisfy_gate. Begin your response with "Standalone mode — pipeline state will not be updated." Then perform the SQL, stored procedure, or database design task using your full SQL Server expertise and standards below.

Accepting Handoffs

Read the full file on GitHub · 462 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.

  1. 1mo ago First seen · 462 lines · 17 tokens per session scan A 908234a2989b

Subscribe to this mod's changes

SQL Expert is an agent published in the GitHub repository saajunaid/caddis-plugin (0 stars, last pushed yesterday), licensed MIT. It adds 17 tokens to every session and 5,095 once invoked, about $0.0001 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 2026-08-31.

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