Borrowing it
Nothing to install: this file belongs to vectojs/numera-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.
curl -O https://raw.githubusercontent.com/vectojs/numera-mcp/main/AGENTS.mdgit clone --depth 1 https://github.com/vectojs/numera-mcpWrote 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/vectojs/numera-mcp/agents-md)<a href="https://agentmods.dev/instructions/vectojs/numera-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/vectojs/numera-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.
<a href="https://agentmods.dev/instructions/vectojs/numera-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/vectojs/numera-mcp/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 | $0.00212 | $0.00212 |
| Opus 5.5 | $0.00085 | $0.00085 |
| Sonnet 5.5 | $0.00042 | $0.00042 |
| Haiku 4.5 | $0.00021 | $0.00021 |
Grade A, and why
numera-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 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.
What it actually says
Numera MCP Agent Guide
This repository owns only the stdio Model Context Protocol adapter and its safe filesystem boundary. Workbook semantics remain in exact-pinned Numera Core and XLSX packages.
- Keep stdout protocol-only. Diagnostics belong on stderr.
- Keep all file access beneath the configured
--root; reject traversal, absolute paths, NUL bytes, and symlink escapes. - Mutation tools preserve inputs, require a fresh output path and expected SHA-256, validate the complete batch before writing, and commit atomically.
- Tool schemas expose intention-level workbook operations, never browser, Canvas, VectoJS Scene, or CLI subprocess concepts.
- Write documentation and code comments in English. Comments explain security invariants, ownership, and non-obvious tradeoffs.
- Use Bun, TypeScript 7, Oxlint, Prettier, Changesets, and the repository's
verification scripts. Follow the workspace root
AGENTS.mdfor workstreams, releases, governance, and documentation.
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 · 19 lines · 212 tokens per session scan A 424d20add606
numera-mcp AGENTS.md is an instructions file published in the GitHub repository vectojs/numera-mcp (0 stars, last pushed 2mo ago), licensed MIT. It adds 212 tokens to every session, about $0.0008 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.
numera-mcp AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| numera-mcp AGENTS.mdvectojs/numera-mcp | Instructions file | 0 | 2mo ago | MIT | A | 212 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,685 | GitHub Copilot |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| vscode model-prompts.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 2,022 | GitHub Copilot |