docs: Instructions file for Codex

AGENTS.md

docs AGENTS.md is an instructions file for Codex, OpenCode from project-kessel/docs. It costs 2,241 tokens per session, scanned A, original, Apache-2.0.

Repository guidance for project documentation that explains the Kessel platform and how to author its content and examples. It also describes source repositories used to generate or support the documentation.

In plain words
What is it for?
Use it when adding or updating platform guides, API or SDK documentation, code examples, diagrams, or generated documentation.
Why use it?
It helps agents find the correct writing rules, technical references, examples, and source code repositories before editing docs.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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 docs AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/project-kessel/docs/agents-md/github.svg)](https://agentmods.dev/instructions/project-kessel/docs/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/project-kessel/docs/agents-md"><img src="https://agentmods.dev/badge/instructions/project-kessel/docs/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.

agentmods 80×15 button for docs AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/project-kessel/docs/agents-md"><img src="https://agentmods.dev/badge/instructions/project-kessel/docs/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 2,241 This file is loaded in full into every session.
When invoked 2,241 The same file — it is already loaded in full.
Security scan A 1 finding. 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 $0.02241 $0.02241
Opus 5.5 $0.00896 $0.00896
Sonnet 5.5 $0.00448 $0.00448
Haiku 4.5 $0.00224 $0.00224

Measured 2mo ago against content hash 198b0b9172b2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

docs AGENTS.md scanned grade A with 1 finding 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 2mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- Variant naming: `example.curl.sh` and `example.grpcurl.sh` produce separate tabs ("curl" and "grpcurl")
AGENTS.md · 174 lines

How it starts

The opening of the file, as written. The whole thing — 174 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

This file provides onboarding context for AI agents working in the docs repository. It covers cross-cutting conventions, architectural context, and pointers to detailed guidelines. For the project overview, see README.md. For contribution basics, see CONTRIBUTING.md.

Guidelines Index

Guideline Covers
KESSEL-INTEGRATION-GUIDE.md Kessel platform knowledge: API contracts (v1beta2), SDKs, auth (OAuth2/TLS/SpiceDB), DB schema, CDC/outbox, Kafka, monitoring KPIs, gRPC patterns
src/content/docs/GUIDELINES.md Docs content authoring: file formats, Diataxis, content placement, diagrams, security in docs, client-package system
src/examples/GUIDELINES.md Code examples: region markers, language coverage, error handling patterns, CodeExamples component

Source Repositories

This documentation project references multiple source code repositories. The docs/sources.yaml file lists all relevant repositories and metadata. AI agents use this file to:

  • Discover which repositories to analyze
  • Understand repository types (api, sdk, schema, service)
  • Get GitHub URLs for cloning if needed
  • Generate documentation from implementation details

The file structure:

repositories:
  - name: inventory-api
    type: api
    github: https://github.com/project-kessel/inventory-api
    description: Brief description
    technologies: [Go, gRPC, ...]

To locate repositories locally:

  1. Check parent directory: ../repository-name/
  2. Search common project directories
  3. If not found, ask the user for the path or offer to clone from GitHub

When generating documentation from source code (e.g., explaining architectural patterns, documenting APIs), always check docs/sources.yaml first to discover relevant repositories. If you discover new repositories that should be documented, suggest updating this file.

Read the full file on GitHub · 174 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. 2mo ago First seen · 174 lines · 2,241 tokens per session scan A 198b0b9172b2

Subscribe to this mod's changes

docs AGENTS.md is an instructions file published in the GitHub repository project-kessel/docs (2 stars, last pushed today), licensed Apache-2.0. It adds 2,241 tokens to every session, about $0.0090 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

docs AGENTS.md compared with instructions from other repositories

docs AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
docs AGENTS.mdproject-kessel/docsInstructions file2todayApache-2.0A2,241Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143ktodayMITA7,461Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA5,516GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file275k3d agoMITA4,313Codex, OpenCode