LibreChat: Instructions file for Codex

AGENTS.md

LibreChat AGENTS.md is an instructions file for Codex, OpenCode from danny-avila/LibreChat. It costs 1,648 tokens per session, scanned A, original, MIT.

Repository instructions for LibreChat, a chat application, covering how to style its frontend and keep its backend authentication cache accurate.

In plain words
What is it for?
Use them when changing LibreChat's frontend themes or styles, or when code changes user records, roles, or authentication data.
Why use it?
They help developers follow the project's shared design rules and avoid showing outdated user permissions after account changes.

Instructions file for CodexOpenCode

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

This is danny-avila/LibreChat's own configuration. It tells Codex and OpenCode how to work on LibreChat 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 LibreChat configures →

About the project

LibreChat is an open-source, self-hosted chat application that lets people use AI models and agent tools through one interface. It supports individuals and teams who want features such as model switching, file-based code work, searches, actions, and multi-user access. The catalogue entries extend LibreChat with skills and instructions for its workflows.

danny-avila/LibreChat · 46,271 stars · on GitHub · librechat.ai

Reuse

Borrowing it

Nothing to install: this file belongs to danny-avila/LibreChat. 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/danny-avila/LibreChat/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/danny-avila/LibreChat

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.

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README.md
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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.

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Per session 1,648 This file is loaded in full into every session.
When invoked 1,648 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 $0.01648 $0.01648
Opus 5.5 $0.00659 $0.00659
Sonnet 5.5 $0.00330 $0.00330
Haiku 4.5 $0.00165 $0.00165

Measured 1mo ago against content hash 2032e8b546cb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

LibreChat 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.

AGENTS.md · 109 lines

How it starts

The opening of the file, as written. The whole thing — 109 lines — stays where its author put it; the contents beside it link to each section on GitHub.

See CLAUDE.md.

Branching and pull requests

Branch off dev and target dev with every pull request; gh pr create defaults to main, so pass --base dev explicitly. main is the released branch, kept as a fast-forward of dev and synced as-is — never open a backport pull request to main, because anything merged to dev reaches it at the next sync. Pull requests opened against main are retargeted automatically. Fixes #N does not close the issue on a dev merge — GitHub honors closing keywords only on the default branch, so close linked issues by hand. Worktrees share one stash stack, so never use a bare git stash pop. See the detailed policy in CLAUDE.md under "Branching and Pull Requests".

Write the description for a reader who has not followed the branch: what breaks, what triggers it, how it behaves after the change, then one or two views of the mechanism — a focused diff, a call tree, a shallow file tree, or a Mermaid sequence. Keep only what the change carries, and describe the code as it stands rather than narrating earlier commits or review rounds. Naming the merged pull request that caused the bug is not the same thing; that is history the reader needs. The formats and examples live in .github/pull_request_template.md.

Review and completion

Read the inline review threads themselves — a summary comment or notification list omits findings. Audit each one against the current code, fix what is valid, and reject what is obsolete in a reply that says why. After each round: focused tests, npx tsc --noEmit in every workspace you changed, push, then request the next review naming the pull request's exact remote head — a clean review of an earlier head says nothing about what you just pushed, and CI runs on its own clock. After two actionable rounds, stop patching thread by thread and read the subsystem by invariant instead. Which reviewer and what phrase triggers it will change; that the review must cover the exact pushed head will not.

Read the full file on GitHub · 109 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. 1mo ago Changed · +57 lines · +921 tokens per session 2032e8b546cb
  2. 1mo ago Changed · +5 lines · +72 tokens per session 1361104019fa
  3. 1mo ago Changed · +29 lines · +463 tokens per session 73f4084f398b
  4. 1mo ago First seen · 18 lines · 192 tokens per session scan A 72d9789830f5

Subscribe to this mod's changes

LibreChat AGENTS.md is an instructions file published in the GitHub repository danny-avila/LibreChat (46,271 stars, last pushed 2d ago), licensed MIT. It adds 1,648 tokens to every session, about $0.0066 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.

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