Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/mitodl/agent-kit/agents-mdgit clone --depth 1 https://github.com/mitodl/agent-kitWhat 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 | $0.02267 | $0.02267 |
| Opus 5 | $0.01133 | $0.01133 |
| Sonnet 5 | $0.00453 | $0.00453 |
| Haiku 4.5 | $0.00227 | $0.00227 |
Grade A, and why
agent-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 yesterday.
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 — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Project Overview
A shared toolkit of AI agent utilities for the mitodl team: reusable skills,
custom agent definitions, MCP server configurations, and sample agent configs.
The primary artifact is a catalog of SKILL.md files, plus MCP server
registrations, installed declaratively via
agent-config-kit (agent-kit) and
this repo's agent-config.toml manifest.
Repository Layout
skills/ # Reusable skills (SKILL.md per skill), organized by category
python/ # uv, cyclopts CLI conventions
dagster/ # dg-based code location structure
infrastructure/ # Pulumi IaC, Vault K8s auth
containers/ # Docker image builds with uv
workflow/ # validate-before-commit, skill authoring
process/ # GitHub issues/PRs/RFCs, standup, dependency management
custom-agents/ # Agent definitions for Claude Code and GitHub Copilot
mcp/ # MCP server install helpers and config snippets
servers/witan/ # Graph-structured memory MCP server (Python)
servers/witan-code/ # Tree-sitter code-graph MCP server (Python)
servers/toolhive-swe/ # ToolHive SWE MCP config (per-tier: ci/qa/prod)
packages/ # Standalone, independently-versioned Python libraries
agent-config-kit/ # Cross-agent MCP/skill/hook registration library
agent-kit/ # PyPI meta-package (ol-agent-kit): agent-config-kit[cli] + witan + witan-code
configs/ # Sample / reference agent configurations
docs/ # The witan-context documentation site (Zensical -> Read the Docs)
getting-started/ # Tutorials (handwritten)
guides/ # How-to (mostly MIRRORED from the packages by bin/gen_docs.py)
reference/ # GENERATED from live code by bin/gen_docs.py -- never edit
explanation/ # Architecture, memory model, coordination, ADRs
internals/ # Historical design docs and implementation specs
Dev Setup
No build step for skills — they are plain Markdown. For the MCP servers:
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.
- yesterday First seen · 110 lines · 2,267 tokens per session scan A c36065c382b6
agent-kit AGENTS.md is an instructions file published in the GitHub repository mitodl/agent-kit (2 stars, last pushed 3d ago), licensed BSD-3-Clause. It adds 2,267 tokens to every session, about $0.0113 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.
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.
buildNext
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
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, applying the notice (cutover) and fallback chain (never fail the build).
spec-kit 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.
langchain 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.