eve AGENTS.md

Repository instructions for working on eve, a filesystem-based framework for building and running durable backend AI agents. They cover its layout, naming, development process, and contribution rules.

In plain words
What is it for?
Navigating eve's packages and documentation, preserving its lowercase naming, checking project guidance, and preparing compliant commits or pull requests.
Why use it?
They give coding agents the project context and rules needed to make compatible changes and follow the required Git workflow.

Instructions file for CodexOpenCode

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/vercel/eve/agents-md
Clone the repo
git clone --depth 1 https://github.com/vercel/eve

Made for: Codex, OpenCode.

Per session 3,022 This file is loaded in full into every session.
When invoked 3,022 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.03022 $0.03022
Opus 5 $0.01511 $0.01511
Sonnet 5 $0.00604 $0.00604
Haiku 4.5 $0.00302 $0.00302

Measured 2d ago against content hash 443850c03b3e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

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 2d 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.

AGENTS.md · 263 lines

How it starts

The opening of the file, as written. The whole thing — 263 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 and eve CLI (the main package)
  • packages/eve-catalog — internal, unpublished library
  • apps/fixtures — shared agent fixtures used by e2e, TUI smoke tests, and local dev
  • apps/frameworks, apps/templates, apps/docs — framework integrations, templates, docs site
  • docs — published documentation content
  • e2e/ — fixture-owned eve eval end-to-end tests
  • research — 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, solution, meaningful behavior changes, and validation—not file lists or commit logs. Keep them proportional to the change, 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.

Commands

pnpm install            # install workspace dependencies
pnpm build              # build all packages
pnpm dev                # watch-mode build + weather fixture on an available local port

pnpm typecheck          # TypeScript across the workspace
pnpm lint               # oxlint (auto-fixes)
pnpm fmt                # oxfmt
pnpm guard:invariants   # mechanical code-invariant checks (runs in CI)
pnpm docs:check         # docs frontmatter and nav validation

pnpm test               # unit + integration
pnpm test:unit          # unit tests (<3s)
pnpm test:integration   # integration tests (<10s)
pnpm test:scenario      # scenario tests (2–5 min; requires pnpm build first)
pnpm test:e2e           # fixture-owned eve eval suites (CI only)
pnpm test:tui           # TUI smoke scripts (not e2e)

Read the full file on GitHub · 263 lines

Changes

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.

  1. 2d ago First seen · 263 lines · 3,022 tokens per session scan A 443850c03b3e

Subscribe to this mod's changes

eve AGENTS.md is an instructions file published in the GitHub repository vercel/eve (4,875 stars, last pushed 2d ago), licensed Apache-2.0. It adds 3,022 tokens to every session, about $0.0151 per session on Opus 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.