pgedge-postgres-mcp: Agent for Claude Code

.claude/agents/mcp-server-expert.md

mcp-server-expert is an agent for Claude Code from pgEdge/pgedge-postgres-mcp. It costs 0 tokens per session (1,627 once invoked), scanned A, original, PostgreSQL.

A specialist for developing and using MCP servers, which let AI applications access tools, data, and other resources through a shared protocol.

In plain words
What is it for?
Use it for MCP server architecture, protocol questions, tool implementations, resource handling, and security concerns.
Why use it?
It gives guidance for designing the server and its interfaces when you need an AI application to interact with external capabilities.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

This is pgEdge/pgedge-postgres-mcp's own configuration. It tells Claude Code how to work on pgedge-postgres-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything pgedge-postgres-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to pgEdge/pgedge-postgres-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/pgEdge/pgedge-postgres-mcp/main/.claude/agents/mcp-server-expert.md
Clone the repo
git clone --depth 1 https://github.com/pgEdge/pgedge-postgres-mcp

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 mcp-server-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/pgedge/pgedge-postgres-mcp/mcp-server-expert.svg)](https://agentmods.dev/agents/pgedge/pgedge-postgres-mcp/mcp-server-expert)
Your own site
<a href="https://agentmods.dev/agents/pgedge/pgedge-postgres-mcp/mcp-server-expert"><img src="https://agentmods.dev/badge/agents/pgedge/pgedge-postgres-mcp/mcp-server-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,627 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 unknown 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 $0.00000 $0.01627
Opus 5 $0.00000 $0.00813
Sonnet 5 $0.00000 $0.00325
Haiku 4.5 $0.00000 $0.00163

Measured 7d ago against content hash 3cce9776545b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

mcp-server-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 7d 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.

.claude/agents/mcp-server-expert.md · 120 lines

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.

Read it on GitHub

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. 7d ago First seen · 120 lines · 0 tokens per session scan A 3cce9776545b

Subscribe to this mod's changes

mcp-server-expert is an agent published in the GitHub repository pgEdge/pgedge-postgres-mcp (222 stars, last pushed 2d ago), licensed PostgreSQL. It costs nothing until one of its globs matches a file; then it loads 1,627 tokens. 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.

Related

Other agents, from other repositories