What is nexus-mcp AGENTS.md?

A set of coding instructions for nexus-mcp, an MCP server that combines code search and code-graph tools. It covers the architecture, supported Python versions, dependencies, testing, and code style.

Use it when working on nexus-mcp, especially when changing its vector search, full-text search, code graph, parsing, embeddings, tests, or supported Python setup.

It gives coding agents one source of project rules, including memory limits, parsing constraints, lazy imports, and required checks. This helps changes fit the existing design and remain testable.

How jaggernaut007/nexus-mcp configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to jaggernaut007/nexus-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/jaggernaut007/nexus-mcp/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/jaggernaut007/nexus-mcp

Made for: Codex, OpenCode.

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/instructions/jaggernaut007/nexus-mcp/agents-md/github.svg)](https://agentmods.dev/instructions/jaggernaut007/nexus-mcp/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/jaggernaut007/nexus-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/jaggernaut007/nexus-mcp/agents-md/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/instructions/jaggernaut007/nexus-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/jaggernaut007/nexus-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 950 This file is loaded in full into every session.

When invoked 950 The same file — it is already loaded in full.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00950	$0.00950
Opus 5.5	$0.00380	$0.00380
Sonnet 5.5	$0.00190	$0.00190
Haiku 4.5	$0.00095	$0.00095

Measured 8d ago against content hash 64fa0291de7b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

nexus-mcp AGENTS.md 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 8d 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.

AGENTS.md · 61 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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.

8d ago Changed · +14 tokens per session 64fa0291de7b
1mo ago Changed · +17 lines · +410 tokens per session 86f11191c7ab
1mo ago Changed 0bcf3590fe38
2mo ago First seen · 44 lines · 526 tokens per session scan A 2269bea48fe7

Subscribe to this mod's changes

nexus-mcp AGENTS.md is an instructions file published in the GitHub repository jaggernaut007/nexus-mcp (0 stars, last pushed today), with no licence file. It adds 950 tokens to every session, about $0.0038 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.

ai-agent ai-coding claude code-analysis code-graph code-search

nexus-mcp AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
nexus-mcp AGENTS.mdjaggernaut007/nexus-mcp	Instructions file	0	today	none	A	950	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

nexus-mcp: Instructions file for Codex