Borrowing it
Nothing to install: this file belongs to iamlukethedev/Hermes3D. 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/iamlukethedev/Hermes3D/main/AGENTS.mdgit clone --depth 1 https://github.com/iamlukethedev/Hermes3DWrote 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/iamlukethedev/hermes3d/agents-md)<a href="https://agentmods.dev/instructions/iamlukethedev/hermes3d/agents-md"><img src="https://agentmods.dev/badge/instructions/iamlukethedev/hermes3d/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/iamlukethedev/hermes3d/agents-md"><img src="https://agentmods.dev/badge/instructions/iamlukethedev/hermes3d/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 | $0.00577 | $0.00577 |
| Opus 5.5 | $0.00231 | $0.00231 |
| Sonnet 5.5 | $0.00115 | $0.00115 |
| Haiku 4.5 | $0.00058 | $0.00058 |
Grade A, and why
Hermes3D 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 1mo 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 — 42 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Instructions
Keep repository instructions generic and safe for open source.
This repo is the Hermes3D frontend. It talks to the Hermes backend over the gateway WebSocket protocol and does not contain the backend itself.
When the user asks for changes, they are asking for changes to this app. Apply solutions here, and treat the gateway protocol and the Hermes HTTP API as external contracts you read rather than edit.
If you use local private overlay instructions, keep them outside the repository and do not commit them here.
Do not commit personal, environment-specific, or secret instructions to this repository.
Development environment instructions
Service overview
Hermes3D is a Next.js 16 frontend (TypeScript, React 19, Three.js, Phaser) for the Hermes backend. It runs a custom Node.js server (server/index.js) that bundles a same-origin WebSocket proxy to the upstream gateway. No database or Docker is required. The only hard system dependency is Node.js 20+ with npm 10+.
Running the app
npm run devstarts the dev server on port 3000 via the custom server (node server/index.js --dev).npm run hermes-adapterstarts the bundled Hermes gateway adapter (server/hermes-gateway-adapter.js) onws://localhost:18789.npm run demo-gatewaystarts the mock gateway instead.- The app requires a running gateway to show agent data. Without one, the UI loads but shows the gateway connection form. This is expected and not an error.
.envis copied from.env.example; seeREADME.md"Configuration" for variable descriptions.
Lint, typecheck, and tests
npm run lint— ESLint. The codebase has a small number of pre-existing warnings and one pre-existing error (inRetroOffice3D.tsx).npm run typecheck—tsc --noEmit. Pre-existing type errors exist in some test files (agentChatPanel-*.test.ts) due to a staleonOpenSettingsprop.npm run test -- --run— Vitest unit tests (use--runfor single-run mode). A few pre-existing failures exist.npm run e2e— Playwright E2E tests; requiresnpx playwright installfirst.npm run smoke:dev-server— starts the dev server on a random port and verifies HTTP response.
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.
- 1mo ago First seen · 42 lines · 577 tokens per session scan A 23a965de51b8
Hermes3D AGENTS.md is an instructions file published in the GitHub repository iamlukethedev/Hermes3D (636 stars, last pushed 1mo ago), licensed MIT. It adds 577 tokens to every session, about $0.0023 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 2026-08-30.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
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Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
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.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.