Borrowing it
Nothing to install: this file belongs to seed-hypermedia/seed. 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/seed-hypermedia/seed/main/AGENTS.mdgit clone --depth 1 https://github.com/seed-hypermedia/seedWrote 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/seed-hypermedia/seed/agents-md)<a href="https://agentmods.dev/instructions/seed-hypermedia/seed/agents-md"><img src="https://agentmods.dev/badge/instructions/seed-hypermedia/seed/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/seed-hypermedia/seed/agents-md"><img src="https://agentmods.dev/badge/instructions/seed-hypermedia/seed/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 | $0.02214 | $0.02214 |
| Opus 5.5 | $0.00886 | $0.00886 |
| Sonnet 5.5 | $0.00443 | $0.00443 |
| Haiku 4.5 | $0.00221 | $0.00221 |
Grade A, and why
seed 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 today.
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 — 144 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Guidelines
Usage Model
- Read this file first.
- Read subtree
AGENTS.mdfiles only when writing files in their scope, or when local behavior is unclear or confusing. - Read
AGENTS.local.mdfiles if they exist. These are local instructions not checked into the repo. They have precedence over other instructions.
Primary Docs
See hypermedia/* for the available docs, which you are responsible for helping keep up-to-date.
Production documentation is release-derived. The content of the hyper.media documentation space
(hm://z6MkfzKMhF9k1oPaQsShWAg8xJzbWf5kaZgn1MkeZvhcAsmB) comes exclusively from the hypermedia/ Markdown and schema
files in a Seed release. Never create, update, delete, import, or directly publish documents in this space through the
CLI, SDK, agents, UI, or a local hypermedia:push. A locally available signing key is not authorization. Edit the
repository files and ship them through the tagged release's documentation workflow. Requests to define a type at
hyper.media/<path> mean adding its source files for a future release, not publishing that URL immediately. Use the
isolated dev documentation space for previews. This rule concerns the documentation space, not unrelated users'
resources served through the hyper.media gateway. A user-directed incident rollback is limited to undoing the
identified unauthorized publications; it is not permission for subsequent direct edits.
Subtree AGENTS.md Map
backend/AGENTS.mdforbackend/**.backend/storage/AGENTS.mdforbackend/storage/**.frontend/AGENTS.mdforfrontend/**.proto/AGENTS.mdforproto/**.vault/AGENTS.mdforvault/**.agents/AGENTS.mdforagents/**.
Agent Assets
- Keep durable repo instructions in
AGENTS.mdand subtreeAGENTS.mdfiles. - Keep reusable workflows and task-specific expertise in repo-local
.agents/skills/so they can be shared by the team. - Keep provider-specific folders such as
.cursor/and.codex/as thin adapters only; do not duplicate canonical instructions there. - Do not rely on personal home-directory skills such as
~/.agents/skillsfor team workflows.
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.
- today Changed · +8 lines · +53 tokens per session 967838d62097
- 2d ago Changed · +14 lines · +347 tokens per session 15cf0869d0bd
- 9d ago Changed · -10 lines · -163 tokens per session 9fcb2c33ddd3
- 13d ago Changed · +2 lines · +43 tokens per session caaf0c03c725
- 20d ago Changed · +15 lines · +187 tokens per session 839c53d0d286
- 1mo ago Changed · +4 lines · +94 tokens per session d83e8517e091
- 1mo ago Changed · +4 lines · +26 tokens per session 590c7c511ca8
- 1mo ago First seen · 107 lines · 1,627 tokens per session scan A 779675ccf7f8
seed AGENTS.md is an instructions file published in the GitHub repository seed-hypermedia/seed (59 stars, last pushed today), licensed Apache-2.0. It adds 2,214 tokens to every session, about $0.0089 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.
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.
vscode oss-third-party-notices.instructions.md
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.