Borrowing it
Nothing to install: this file belongs to nymrel/nymrel-agent. 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/nymrel/nymrel-agent/main/AGENTS.mdgit clone --depth 1 https://github.com/nymrel/nymrel-agentWrote 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/nymrel/nymrel-agent/agents-md)<a href="https://agentmods.dev/instructions/nymrel/nymrel-agent/agents-md"><img src="https://agentmods.dev/badge/instructions/nymrel/nymrel-agent/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/nymrel/nymrel-agent/agents-md"><img src="https://agentmods.dev/badge/instructions/nymrel/nymrel-agent/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 | $0.00490 | $0.00490 |
| Opus 5.5 | $0.00196 | $0.00196 |
| Sonnet 5.5 | $0.00098 | $0.00098 |
| Haiku 4.5 | $0.00049 | $0.00049 |
Grade A, and why
nymrel-agent 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.
How it starts
The opening of the file, as written. The whole thing — 34 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Nymrel Agent production operating boundary
This repository is the Nymrel-owned composition root for the Nymrel Agent product and implementation service. The public product is a stateless multi-model router; optional provider execution is customer-local and read-only in v0.1.
Allowed work
- Provider-neutral routing contracts, deterministic scoring, validation, receipts, tests, documentation, CLI, MCP, and the public routing Worker.
- Read-only local provider adapters that obtain credentials from environment-variable names in customer-owned configuration.
- Release packaging, public source publication, and deployment through the recorded production launch packet.
Five-minute release orientation
Before any release, deployment, or public-claim work, read docs/ONBOARDING.md and run its fail-before-work origin check. The only authoritative remote is https://github.com/Nymrel/nymrel-agent.git; legacy-jalenbuildshub is a retained historical reference and is never a release or deployment authority. Do not continue if the check fails.
Non-negotiable boundaries
- Never commit, print, transmit to the public router, or place in receipts any provider credential, prompt, task body, output body, customer data, or private studio artifact.
- The public API accepts routing metadata only and performs no model execution.
- Local execution remains read-only in v0.1. Do not add shell, filesystem-write, browser-mutation, outreach, purchase, deployment, or other side-effect tools without a separate isolation and authorization decision.
- Do not add hosted credential custody, accounts, billing, customer-data persistence, or model brokering without a separate protected-gate decision.
- Pi, OMP, and other runtimes may be optional subordinate adapters only; they do not replace the Nymrel-owned contract, router, policy, receipts, or release authority.
- Model scores and profile facts are caller-supplied evidence. Do not present them as Nymrel benchmarks or universal truth.
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 · 34 lines · 490 tokens per session scan A 2090d3cbeee6
nymrel-agent AGENTS.md is an instructions file published in the GitHub repository nymrel/nymrel-agent (0 stars, last pushed 2d ago), licensed MIT. It adds 490 tokens to every session, about $0.0020 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.
nymrel-agent AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| nymrel-agent AGENTS.mdnymrel/nymrel-agent | Instructions file | 0 | 2d ago | MIT | A | 490 | 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 | yesterday | 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 |