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.
npx agentmods add instructions/u14app/neo-chat/agents-mdgit clone --depth 1 https://github.com/u14app/neo-chatWhat 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 | $0.00882 | $0.00882 |
| Opus 5 | $0.00441 | $0.00441 |
| Sonnet 5 | $0.00176 | $0.00176 |
| Haiku 4.5 | $0.00088 | $0.00088 |
Grade A, and why
neo-chat 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Repository Guidelines
Project Structure & Module Organization
This is a Next.js/React chat application using TypeScript, Zustand, Vitest, and
pnpm. Core routes and API handlers live in src/app/. UI components are grouped
under src/components/, with feature-specific chat hooks in
src/features/chat/. Shared domain logic, provider adapters, security gates,
and API helpers live in src/lib/; client service wrappers are in
src/services/; persisted Zustand stores and migrations are in src/store/.
Tests are centralized in src/__tests__/. Static images and skill metadata live
under public/, and operational docs live in docs/.
Build, Test, and Development Commands
Use the pinned package manager ([email protected]), preferably through Corepack:
corepack pnpm installinstalls dependencies frompnpm-lock.yaml.corepack pnpm devstarts the local Next.js server atlocalhost:3000.corepack pnpm buildcreates the production Next.js build.corepack pnpm lintruns ESLint with Next.js core-web-vitals and TypeScript rules.corepack pnpm format:checkchecks repository formatting with Prettier.corepack pnpm check:importsrejects disallowed long relative imports.corepack pnpm hygiene:artifactschecks generated artifact hygiene.corepack pnpm typecheckrunstsc --noEmit.corepack pnpm testruns the Vitest suite.corepack pnpm test:e2eruns Playwright smoke tests on an isolated port 3100 server by default.corepack pnpm build:workerbuilds the OpenNext Cloudflare Worker output.
Coding Style & Naming Conventions
Prettier is authoritative: 2-space indentation, 80-column print width,
semicolons, double quotes, and trailing commas. Keep TypeScript strict-friendly
and prefer explicit domain types over broad any unless existing integration
code already requires it. Components use PascalCase, hooks use useCamelCase,
tests use *.test.ts or *.test.tsx, and path aliases may use @/ for src/.
Testing Guidelines
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.
- yesterday First seen · 79 lines · 882 tokens per session scan A 78ba6c568827
neo-chat AGENTS.md is an instructions file published in the GitHub repository u14app/neo-chat (1,790 stars, last pushed 4d ago), licensed MIT. It adds 882 tokens to every session, about $0.0044 per session on Opus 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 instructions, from other repositories
langchain AGENTS.md
Instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
CLIProxyAPI AGENTS.md
Instructions for router-for-me/CLIProxyAPI, covering agents.md, repository, commands, config and architecture.
gemini-watermark-remover AGENTS.md
Instructions for GargantuaX/gemini-watermark-remover, covering agents.md, best-effort product principle, debug workflow, allenk upstream reference and data-driven watermark investigation.
proxypal AGENTS.md
Instructions for heyhuynhgiabuu/proxypal, covering proxypal, stack, structure, commands and code style.
ima2-gen AGENTS.md
Instructions for lidge-jun/ima2-gen, covering ima2-gen — ai context, what this project does, tech stack, project structure and agent skills (packaged).
opencodex AGENTS.md
Instructions for lidge-jun/opencodex, covering agents.md, what this project is, repository layout, optional subsystems stay off the core path and the devlog directory.