What is codebase-navigator?

An agent for navigating the pgEdge Postgres MCP Server codebase. It helps locate implementations and understand how the server's components interact.

Use it to answer questions about the codebase structure, find where a feature is implemented, or trace how components work together.

It reduces the time needed to find relevant code in an unfamiliar database-server project. The description does not specify additional implementation or editing capabilities.

How pgEdge/pgedge-postgres-mcp configures Claude Code and Cursor

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/codebase-navigator.md

Clone the repo

git clone --depth 1 https://github.com/pgEdge/pgedge-postgres-mcp

Made for: Claude Code, Cursor.

Or install pgedge-postgres-mcp, the plugin that ships this one along with the rest of its 9 agents, 1 MCP server.

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/pgedge/pgedge-postgres-mcp/codebase-navigator/github.svg)](https://agentmods.dev/agents/pgedge/pgedge-postgres-mcp/codebase-navigator)

Your own site

<a href="https://agentmods.dev/agents/pgedge/pgedge-postgres-mcp/codebase-navigator"><img src="https://agentmods.dev/badge/agents/pgedge/pgedge-postgres-mcp/codebase-navigator/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/pgedge/pgedge-postgres-mcp/codebase-navigator"><img src="https://agentmods.dev/badge/agents/pgedge/pgedge-postgres-mcp/codebase-navigator.svg" alt="Reviewed on agentmods" width="80" 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 1,602 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.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.01602
Opus 5.5	$0.00000	$0.00641
Sonnet 5.5	$0.00000	$0.00320
Haiku 4.5	$0.00000	$0.00160

Measured 2mo ago against content hash 31fe34d059cb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

codebase-navigator 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 2mo 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/codebase-navigator.md · 145 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.

2mo ago First seen · 145 lines · 0 tokens per session scan A 31fe34d059cb

Subscribe to this mod's changes

codebase-navigator is an agent published in the GitHub repository pgEdge/pgedge-postgres-mcp (245 stars, last pushed 2d ago), licensed PostgreSQL. It costs nothing until one of its globs matches a file; then it loads 1,602 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.

Databases LLM PostgreSQL ai mcp postgresql server

codebase-navigator next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
codebase-navigatorpgEdge/pgedge-postgres-mcp	Agent	245	2d ago	PostgreSQL	A	0	Claude Code, Cursor
database-revieweraffaan-m/ECC	Agent	298k	4d ago	MIT	A	48	Claude Code, Kiro
db-postgres-expertandisab/swe-marketplace	Agent	21	yesterday	MIT	A	403	Claude Code
database-reviewerxu-xiang/everything-claude-code-zh	Agent	2.0k	8mo ago	MIT	A	61	Claude Code
PostgreSQL Database Administratorgithub/awesome-copilot	Agent	41k	yesterday	MIT	A	17	Claude Code
supabase-substrate-explorerKastalien-Research/thoughtbox	Agent	65	3mo ago	MIT	A	117	Claude Code
doctor-strangeCohesiumAI/assemble	Agent	11	3mo ago	MIT	A	39	Claude Code

pgedge-postgres-mcp: Agent for Claude Code