higress: Instructions file for Codex

AGENTS.md

higress AGENTS.md is an instructions file for Codex, OpenCode from higress-group/higress. It costs 2,905 tokens per session, scanned A, original, Apache-2.0.

Repository instructions for AI agents contributing to Higress, an open-source cloud-native API gateway. They describe the codebase and require approved issue and design records before agent-assisted changes begin.

In plain words
What is it for?
Use them when planning, implementing, and verifying changes in the Higress repository. They cover the repository layout, plugins, and the required issue-spec process.
Why use it?
They reduce the risk of making unapproved changes or losing the link between implementation and its design. They also define what evidence is needed before work is considered complete.

Instructions file for CodexOpenCode

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

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

About the project

Higress is a cloud-native API gateway built on Istio and Envoy that routes and manages APIs and can be extended with WebAssembly plugins. It is used to manage APIs for AI models and MCP servers as well as general services, and the catalogue entries provide agent workflows and integrations for operating it.

higress-group/higress · 9,305 stars · on GitHub · higress.ai

Reuse

Borrowing it

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

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 higress AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/higress-group/higress/agents-md.svg)](https://agentmods.dev/instructions/higress-group/higress/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/higress-group/higress/agents-md"><img src="https://agentmods.dev/badge/instructions/higress-group/higress/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 2,905 This file is loaded in full into every session.
When invoked 2,905 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 $0.02905 $0.02905
Opus 5 $0.01452 $0.01452
Sonnet 5 $0.00581 $0.00581
Haiku 4.5 $0.00291 $0.00291

Measured 7d ago against content hash f94959032edc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

higress 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 7d 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 · 204 lines

How it starts

The opening of the file, as written. The whole thing — 204 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Guidance for AI agents working in this repository.

Higress is a cloud-native API gateway built on Istio and Envoy. The control plane extends Istio/pilot (Go); the data plane is Envoy extended with WASM plugins (Go/Rust/C++/AssemblyScript) and a Go-based golang-filter. It supports Ingress/Gateway API and ships a rich plugin ecosystem (including AI gateway plugins).

Mandatory issue-spec gate for agent-assisted changes

Before substantive implementation, determine whether an AI or coding agent is materially participating under the agent-assisted contribution policy. For every contribution to which that policy applies:

  • do not begin implementation until a Higress maintainer has approved both the Proposal Issue and Design Issue; an issue-spec status or agent assertion is not maintainer approval;
  • implement only through TASKs authorized by the approved Design and preserve traceability to the applicable SPECs;
  • ensure the Design contains a concrete Verification Plan before verification begins; and
  • create and complete the corresponding verification TASKs with exact commands, results, evidence links, and hashes before claiming success or asking maintainers to accept verification or review.

Declare agent participation in the PR template. The policy excludes human-only work. Small documentation-only corrections limited to spelling, punctuation, whitespace, or formatting (such as typo adjustments) may skip the issue-spec workflow when they involve no substantive choice or behavioral effect. Agent-assisted bug fixes and material feature work must still follow this gate. An authenticated gh user with canonical-repository role_name of maintain or admin may use the verified maintainer/administrator exception documented in the canonical policy. Before bypassing the gate, run the documented gh identity and collaborator-permission checks, record the login, returned role_name, actual PR author, and rationale in the PR, and still disclose agent participation. The PR author must match the verified login and the PR must attest that GH_TOKEN and GITHUB_TOKEN were unset for every verification command; any failed or mismatched check disqualifies the exception. Select the matching verified-exception status in the PR template. The accepting or merging maintainer must independently validate current live evidence with token overrides unset. This exception never waives bug-fix runtime verification.

Read the full file on GitHub · 204 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. 7d ago First seen · 204 lines · 2,905 tokens per session scan A f94959032edc

Subscribe to this mod's changes

higress AGENTS.md is an instructions file published in the GitHub repository higress-group/higress (9,305 stars, last pushed yesterday), licensed Apache-2.0. It adds 2,905 tokens to every session, about $0.0145 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 2026-08-31.

Related

Other instructions, from other repositories

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,182 tokens

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).

microsoft/vscode · 6,785 tokens

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.

vercel/next.js · 7,296 tokens

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.

langchain-ai/langchain · 4,469 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).

microsoft/vscode · 5,001 tokens

spec-kit AGENTS.md

AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.

github/spec-kit · 7,104 tokens