Borrowing it
Nothing to install: this file belongs to LuxAlgo/luxalgo-mcp-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/LuxAlgo/luxalgo-mcp-server/main/AGENTS.mdgit clone --depth 1 https://github.com/LuxAlgo/luxalgo-mcp-serverWrote 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.
[](https://agentmods.dev/instructions/luxalgo/luxalgo-mcp-server/agents-md)<a href="https://agentmods.dev/instructions/luxalgo/luxalgo-mcp-server/agents-md"><img src="https://agentmods.dev/badge/instructions/luxalgo/luxalgo-mcp-server/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.
<a href="https://agentmods.dev/instructions/luxalgo/luxalgo-mcp-server/agents-md"><img src="https://agentmods.dev/badge/instructions/luxalgo/luxalgo-mcp-server/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.01077 | $0.01077 |
| Opus 5 | $0.00539 | $0.00539 |
| Sonnet 5 | $0.00215 | $0.00215 |
| Haiku 4.5 | $0.00108 | $0.00108 |
Grade A, and why
luxalgo-mcp-server 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 3d 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.
How it starts
The opening of the file, as written. The whole thing — 45 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Working in this repository (for AI coding agents)
This is @luxalgo/mcp, the LuxAlgo MCP server: tools that AI clients (Claude, ChatGPT, Cursor, …) call to read LuxAlgo data. Most work here is adding or changing tools under src/tools/<domain>/. Read this file, then docs/auth.md in full before touching anything.
Hard rules
- Do not modify authentication or infrastructure code —
src/auth/,src/platform/app-client.ts,src/server/,src/entries/,api/server.ts,public/oauth/,vercel.json— unless a maintainer explicitly asks for that change in this conversation. If a task seems to require it, stop and say so instead of doing it. - Never check entitlements, plans, roles, or permissions in this repo. The LuxAlgo app decides; this server forwards the user's token and relays the app's answer.
docs/auth.md§1 explains why. There is no "is this user Premium" check anywhere here and there must not be one. - Call the app only through
appGet()(reads) andappSend()(writes) (src/platform/app-client.ts). Neverfetch()app.luxalgo.comdirectly. Never read, store, log, or print a token.appSendhas no anonymous form: it is only for protected tools acting on the signed-in user's own data (today: the journal). - Never catch and swallow
AppAuthError/AppPermissionError. Rethrow them from anycatch; the auth wrapper turns them into the sign-in / upgrade results the client understands.guarded()intools/_shared/result.tsalready does this. - Never cache a response fetched with a user's token. In-process caches must fetch with
appGet(path, query, { access: null }).
Layout
src/tools/<domain>/ one directory per tool domain; index.ts exports a ToolModule
src/tools/_shared/ json/toolError/ok/guarded (result.ts), compact/fmtPct/fmtMoney (format.ts), ToolModule type
src/server/ manifest.ts (list of modules — the only file outside tools/ you edit when adding a domain)
src/auth/ OAuth — read docs/auth.md; do not edit
src/platform/ appGet (the app HTTP client), analytics — do not edit
src/entries/ stdio / node-http / hosted entry points — do not edit
test/ smoke.mjs runner + smoke/<domain>.mjs, parity.mjs, trackers-check.mjs
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.
- 3d ago Changed · +55 tokens per session 5858ce358225
- 4d ago First seen · 45 lines · 1,022 tokens per session scan A e552b995f65d
luxalgo-mcp-server AGENTS.md is an instructions file published in the GitHub repository LuxAlgo/luxalgo-mcp-server (17 stars, last pushed 3d ago), licensed MIT. It adds 1,077 tokens to every session, about $0.0054 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 2026-09-10.
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