eva: Instructions file for Codex

AGENTS.md

eva AGENTS.md is an instructions file for Codex, OpenCode from vvedantb/eva. It costs 541 tokens per session, scanned A, original, MIT.

A repository instruction file for the eva project, with rules for coding, git work, planning, and project-specific documentation. It serves the same purpose as the project's CLAUDE.md instructions.

In plain words
What is it for?
Use it to guide implementation decisions, testing, commits, shipping, and documentation lookup.
Why use it?
It gives the coding agent consistent guidance for making and reviewing changes in this repository.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions CLAUDE.md; names the AskUserQuestion tool.

This is vvedantb/eva's own configuration. It tells Codex and OpenCode how to work on eva itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything eva configures →

Reuse

Borrowing it

Nothing to install: this file belongs to vvedantb/eva. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/vvedantb/eva/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/vvedantb/eva

Made for: Codex, OpenCode.

Wrote 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.

agentmods badge for eva AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/vvedantb/eva/agents-md.svg)](https://agentmods.dev/instructions/vvedantb/eva/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/vvedantb/eva/agents-md"><img src="https://agentmods.dev/badge/instructions/vvedantb/eva/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 541 This file is loaded in full into every session.
When invoked 541 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00541 $0.00541
Opus 5 $0.00270 $0.00270
Sonnet 5 $0.00108 $0.00108
Haiku 4.5 $0.00054 $0.00054

Measured 3d ago against content hash c496b6150b1f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

eva 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 3d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

AGENTS.md · 38 lines

How it starts

The opening of the file, as written. The whole thing — 38 lines — stays where its author put it; the contents beside it link to each section on GitHub.

FOLLOW ALL OF THESE RULES

Same rules as CLAUDE.md. Domain details live in the two docs below — read them when relevant.

Git / ship

  • NEVER create a new branch, push, or open a PR unless the user asks.
  • If already on main and the user asks to ship: commit and push directly to main.
  • Prefer /preflight occasionally over husky commit/push gates (hooks under .husky/ are commented out).
  • Plans: final step is /ship unless the user says not to.

Always

  • Greenfield OK — breaking changes fine.
  • Implementing from an agreed plan: just implement.
  • Think first; simplest solution wins. Ask when unsure / ambiguous — as many questions as needed.
  • Prefer a detailed plan over a quick one. Plan mode: concise plans; list unresolved questions; use grill-me / AskUserQuestion to interview until shared understanding.
  • Explain changes when done. Check web/docs when needed.
  • Only edit CLAUDE.md / this file when the user explicitly asks. Entries: 1 sentence (~20 words max), not changelog paragraphs.
  • No any, unknown, as, or non-null !. No isRecord(object: unknown) — parse at the boundary (Zod). Hard types → rethink design.
  • Prefer simplicity, small diffs, co-location, explicit behavior, long-term maintainability. No premature abstractions. No new deps unless necessary.
  • Do not default to useState/useRef — pick the right state ownership first.
  • Do not run dev / lint / build unless the user asks.
  • After medium+ changes: no banned types; tsc where relevant; update internal/changelog.md (create internal/ if missing). Changelog entry: Title, Date (YYYY-MM-DD), WHY summary, architectural reason if any.

Domain docs (read when relevant)

  • Frontend / UI work → docs/eva-ui.md (tone-based surfaces, no decorative hairlines; components, router, vite, nuqs)
  • Convex / schema / migrations → docs/eva-convex.md
  • agent-browser on eva app → navigate to /?agent to auto sign in as the agent user

Product facts

  • This repo is a platform for managing other codebases and running them remotely (sandbox app ≠ this codebase).
  • Sandbox provider is Vercel; Daytona is legacy. Sandboxes: IPv4 only (no IPv6).

Read the full file on GitHub · 38 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. 3d ago First seen · 38 lines · 541 tokens per session scan A c496b6150b1f

Subscribe to this mod's changes

eva AGENTS.md is an instructions file published in the GitHub repository vvedantb/eva (101 stars, last pushed yesterday), licensed MIT. It adds 541 tokens to every session, about $0.0027 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 2026-09-03.

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