eve is a filesystem-first framework for building durable AI agents, with agent instructions, tools, and configuration kept in ordinary project files. It is for developers creating agents that can be inspected, extended, and operated through a conventional codebase. The catalogue add-ons support working with eve agents and their workflows.
Borrowing it
Nothing to install: this file belongs to vercel/eve. 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/vercel/eve/main/AGENTS.mdgit clone --depth 1 https://github.com/vercel/eveWrote 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/vercel/eve/agents-md)<a href="https://agentmods.dev/instructions/vercel/eve/agents-md"><img src="https://agentmods.dev/badge/instructions/vercel/eve/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/vercel/eve/agents-md"><img src="https://agentmods.dev/badge/instructions/vercel/eve/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 | $0.03783 | $0.03783 |
| Opus 5.5 | $0.01513 | $0.01513 |
| Sonnet 5.5 | $0.00757 | $0.00757 |
| Haiku 4.5 | $0.00378 | $0.00378 |
Grade A, and why
eve 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 — 316 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Guidance for coding agents (and humans) working in this repository. For setup, PR workflow, and release process, see CONTRIBUTING.md.
About eve
eve is a filesystem-first framework for durable backend AI agents. You author
an agent as a directory on disk — instructions, skills, tools, connections,
channels, subagents, and schedules are all files — and eve compiles and runs it.
See the README for the full overview and
docs/ for user-facing documentation.
Always style the framework name as eve, lowercase, in user-facing copy,
docs, prompts, comments, and headings.
Repository layout
packages/eve— the framework andeveCLI (the main package)packages/eve-catalog— internal, unpublished librarypackages/eve-code—@eve/code, internal source of theeve/extensions/codeextension shipped ineveapps/fixtures— shared agent fixtures used by e2e, TUI smoke tests, and local devapps/frameworks,apps/templates,apps/docs— framework integrations, templates, docs sitedocs— published documentation contente2e/— fixture-ownedeve evalend-to-end testsresearch— issue-backed implementation plans for proposed changes
Git workflow
Commits must be cryptographically signed with a GitHub-verified key and include
the DCO Signed-off-by trailer. Use git commit -s for every commit, and if a
commit is missing the trailer, amend it with git commit --amend -s --no-edit
before pushing.
PR descriptions are reviewer-oriented explanations of the problem or decision
behind the change, the solution, meaningful behavior changes, and validation—not
file lists or commit logs. Keep the Summary short and lead with that
justification before implementation details. Link a prior issue or discussion
when one exists, call out important scope boundaries or preserved behavior, and
report only checks actually run. Never create an issue solely to accompany a PR.
Use the gh-pr-description
skill when drafting or updating one.
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 · +13 tokens per session e8bbadcfe4a7
- yesterday Changed · +9 lines · +172 tokens per session 7380305e37e8
- 9d ago Changed · +18 lines · +225 tokens per session bfe20b9d6ed7
- 10d ago Changed · +5 lines · +56 tokens per session 34968f7a6aa2
- 22d ago Changed · +1 tokens per session be290705e3e2
- 23d ago Changed · +7 lines · +96 tokens per session 9cb7b997ca89
- 24d ago Changed · +1 lines · +23 tokens per session 907dc9c493f7
- 1mo ago Changed · +1 lines · +20 tokens per session 3fd9b1674cd9
- 1mo ago Changed · +3 lines · +31 tokens per session e5fef65ede13
- 1mo ago First seen · 272 lines · 3,146 tokens per session scan A 982fc96f6418
eve AGENTS.md is an instructions file published in the GitHub repository vercel/eve (5,720 stars, last pushed today), licensed Apache-2.0. It adds 3,783 tokens to every session, about $0.0151 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.
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).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.