Borrowing it
Nothing to install: this file belongs to Cynrath/agent-context-kit. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Cynrath/agent-context-kit/master/AGENTS.mdgit clone --depth 1 https://github.com/Cynrath/agent-context-kitWrote 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.
[](https://agentmods.dev/instructions/cynrath/agent-context-kit/agents-md)<a href="https://agentmods.dev/instructions/cynrath/agent-context-kit/agents-md"><img src="https://agentmods.dev/badge/instructions/cynrath/agent-context-kit/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.
<a href="https://agentmods.dev/instructions/cynrath/agent-context-kit/agents-md"><img src="https://agentmods.dev/badge/instructions/cynrath/agent-context-kit/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.02252 | $0.02252 |
| Opus 5.5 | $0.00901 | $0.00901 |
| Sonnet 5.5 | $0.00450 | $0.00450 |
| Haiku 4.5 | $0.00225 | $0.00225 |
Grade A, and why
agent-context-kit 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.
How it starts
The opening of the file, as written. The whole thing — 216 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md — AgentContextKit
AgentContextKit (ackit, TypeScript + Node.js + npm) ships as the scoped npm
package @cynrath/agent-context-kit (CLI binary ackit). The repository's own
docs are the single source of truth for agents.
Version truth (authoritative — do not hard-code a release number here)
package.jsonis authoritative for the source-checkout package version.- The latest immutable npm/GitHub Release is authoritative for the published stable version.
- Historical versioned documents (
docs/v0.2.0/**, old ADRs, CHANGELOG history, completed task records) are historical and not current governance. - This file must stay version-agnostic: it never names a current release number.
Controlled-release governance
Release actions are user-authorized, not agent-authorized:
masterpush/merge, npm publish, tag creation/movement, and GitHub Releases may be performed only inside a task that carries explicit user authorization for that exact action. Absent that authorization in the active task, they are prohibited — do not infer it from past tasks or this document.- Always prohibited: force-push, rebase, history rewrite, tag movement/deletion, workflow dispatch, deployments.
- The frozen legacy .NET line stays immutable everywhere: published NuGet
versions/tags/releases (
1.0.0-rc.1, earlier alphas) are untouchable; no NuGet or .NET release pipeline exists or may be created for vNext. - The old global .NET
ackittool must not be used as a validation tool; all verification uses the repository-built CLI (see below).
Canonical entry points (read in this order)
AGENTS.md,CLAUDE.md,.github/copilot-instructions.md— current governance (this file is authoritative)- The current active task under
docs/tasks/active/ - Current product docs:
docs/reference/,docs/concepts/,docs/guides/,docs/architecture/— current behavior contracts docs/decisions/— architecture decisions (baseline reused; release-wave ADRs describe the release that introduced them)docs/v0.2.0/— v0.2.0 historical contract (history only, not current governance)docs/rebuild/— historical vNext Goal-2 evidence, preserved verbatim (not active)
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.
- 1mo ago Changed · +129 lines · +1,082 tokens per session 32987f0e1cf8
- 1mo ago First seen · 87 lines · 1,170 tokens per session scan A ca01c9c02ff2
agent-context-kit AGENTS.md is an instructions file published in the GitHub repository Cynrath/agent-context-kit (14 stars, last pushed 12d ago), licensed MIT. It adds 2,252 tokens to every session, about $0.0090 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.
Other instructions, from other repositories
agent-rulescope tests.instructions.md
Instructions for 13624725933/agent-rulescope, a project described as: See exactly which instructions your coding agent inherits. Scan AGENTS.md, CLAUDE.md, Cursor and Copilot rules.
agent-rulescope copilot-instructions.md
Copilot instructions for 13624725933/agent-rulescope, a project described as: See exactly which instructions your coding agent inherits. Scan AGENTS.md, CLAUDE.md, Cursor and Copilot rules.
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).
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.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
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.