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/neurogen-dev/neuroapi/agents-mdgit clone --depth 1 https://github.com/neurogen-dev/NeuroAPIWhat 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 | $0.00148 | $0.00148 |
| Opus 5 | $0.00074 | $0.00074 |
| Sonnet 5 | $0.00030 | $0.00030 |
| Haiku 4.5 | $0.00015 | $0.00015 |
Grade A, and why
NeuroAPI 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 2d 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.
What it actually says
NeuroAPI Agents repository guidance
- This branch is the public, auditable installer for NeuroAPI integrations with Codex CLI and Claude Code.
- Never accept API keys through command-line arguments, persist them as plaintext, or print them outside the dedicated credential helpers.
- Windows secrets must stay DPAPI-protected for the current user. macOS secrets must stay in the current user's login Keychain.
- Do not overwrite unrelated Codex, Claude Code, shell, or PATH configuration. Update and uninstall only files marked as installer-owned.
- Keep Windows PowerShell 5.1 compatibility and macOS system Bash compatibility.
- Validate script syntax, generated TOML/JSON, idempotency, secret handling, and uninstall boundaries before publishing.
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.
- 2d ago First seen · 9 lines · 148 tokens per session scan A 83ddb90856d5
NeuroAPI AGENTS.md is an instructions file published in the GitHub repository neurogen-dev/NeuroAPI (1,320 stars, last pushed 1mo ago), licensed MIT. It adds 148 tokens to every session, about $0.0007 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
CodeGPT CLAUDE.md
Instructions for appleboy/CodeGPT, covering claude.md, project overview, build and development commands, build the binary and install globally.
openai-cookbook AGENTS.md
Instructions for openai/openai-cookbook, covering repository guidelines, project structure & module organization, build, test, and development commands, coding style & naming conventions and testing guidelines.
all-api-hub AGENTS.md
AGENTS.md instructions for qixing-jk/all-api-hub, covering repository guidelines, agent skills, issue tracker, triage labels and domain docs.
all-api-hub CLAUDE.md
Claude Code instructions for qixing-jk/all-api-hub, a project described as: All-in-one New-API/Sub2API account hub: balance/usage dashboard, auto check-in, one-click keys, price comparison, health checks, plus advanced channel management | 一站式 New-API/Sub2API 等中转站账号管理：余额/用量看板、自动签到、密钥一键使用、价格对比、可用性测试，另提供高级渠道管理.
gpt2agent CLAUDE.md
Instructions for robotlearning123/gpt2agent, covering gpt2agent, build & test, key files, critical invariants and adding tools.
fusion360-mcp-periscope AGENTS.md
AGENTS.md instructions for VXNTedits/fusion360-mcp-periscope, covering periscope — instructions for ai agents, getting connected, the discipline that matters most, composing the tools and known gaps and quirks (be honest about these).