Borrowing it
Nothing to install: this file belongs to pgEdge/ai-dba-workbench. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/pgEdge/ai-dba-workbench/main/.claude/agents/react-expert.mdgit clone --depth 1 https://github.com/pgEdge/ai-dba-workbenchWrote 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/agents/pgedge/ai-dba-workbench/react-expert)<a href="https://agentmods.dev/agents/pgedge/ai-dba-workbench/react-expert"><img src="https://agentmods.dev/badge/agents/pgedge/ai-dba-workbench/react-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.
<a href="https://agentmods.dev/agents/pgedge/ai-dba-workbench/react-expert"><img src="https://agentmods.dev/badge/agents/pgedge/ai-dba-workbench/react-expert.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00037 | $0.00582 |
| Opus 5.5 | $0.00015 | $0.00233 |
| Sonnet 5.5 | $0.00007 | $0.00116 |
| Haiku 4.5 | $0.00004 | $0.00058 |
Grade A, and why
react-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.
The source is not reproduced here
Licensed PostgreSQL
The repository is licensed PostgreSQL, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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.
- 1mo ago Changed · +2 lines 29b8056a5b37
- 1mo ago Changed · -59 lines · +37 tokens per session e5a74f85a84b
- 1mo ago First seen · 121 lines · 0 tokens per session scan A dd7d389c71bb
react-expert is an agent published in the GitHub repository pgEdge/ai-dba-workbench (49 stars, last pushed today), licensed PostgreSQL. It adds 37 tokens to every session and 582 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 2026-08-30.
Other agents, from other repositories
agentation-fix-loop
Load when the user is running an Agentation two-session workflow and you are the Session 2 (fix) side. Watches MCP annotations from the critique session, reads each annotation's selector + file path + critique, applies the fix in code, commits, and loops to the next. Use only when the agentation MCP server is…
fec-ui-checker
Use this subagent to troubleshoot visual defects, layout confusion, CSS issues, responsive exceptions, and inconsistencies between interaction and design in the front-end UI, and save the report as a Markdown file. Supports obtaining design data from Figma, Sketch, MasterGo, Pixso, Moko, and Mock, compares the design…
db-analyst
Análise profunda de PostgreSQL — plano de execução, índice, bloat, lock, replicação e capacidade. Despachado quando o diagnóstico aponta o banco. Isolado porque ler pgstat e planos consome muito contexto.
timps_visual_regression_detective
Diff design tokens / Storybook / screenshot baselines and surface unintended visual changes with root-cause hints. Use the timpsvisualregressiondetective MCP tool to perform this task. Do not answer directly — delegate to this sub-agent.
neon-optimization-analyzer
Identify and fix slow Postgres queries automatically using Neon's branching workflow. Analyzes execution plans, tests optimizations in isolated database branches, and provides clear before/after performance metrics with actionable code fixes.
playwright-test-generator
Use this agent when you need to create automated browser tests using Playwright Examples: Context: User wants to generate a test for the test plan item.