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/marcecandil/agent-context-kit/agents-mdgit clone --depth 1 https://github.com/MarceCandil/agent-context-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 | $0.00312 | $0.00312 |
| Opus 5 | $0.00156 | $0.00156 |
| Sonnet 5 | $0.00062 | $0.00062 |
| Haiku 4.5 | $0.00031 | $0.00031 |
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 2d 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.
What it actually says
AGENTS.md
How to work in this repo (required)
- Read
ai/AI.mdandai/constitution.mdfirst. - If any requirement is unclear, ask for clarification or inspect the codebase. Do not guess.
- Prefer small, reviewable diffs. Keep changes scoped.
Commands (edit to match your project)
- Install:
pnpm install - Dev:
pnpm dev - Typecheck:
pnpm typecheck - Tests:
pnpm test - Lint:
pnpm lint - Sync AI files:
pnpm sync:ai
Verification (run after changes)
After making changes, verify your work:
pnpm typecheck— must passpnpm lint— must passpnpm test— must passpnpm sync:ai && git diff --exit-code— generated files must stay in sync
Workflows (Windsurf/Cascade or manual)
- Feature:
ai/workflows/feature-dev.md - Bugfix:
ai/workflows/bug-fix.md - PR Review:
ai/workflows/pr-review.md - Deploy:
ai/workflows/deploy.md
Roles
- Tech Lead:
ai/roles/tech-lead.md - Dev:
ai/roles/dev.md - QA:
ai/roles/qa.md - DevOps:
ai/roles/devops.md
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.
- 2d ago First seen · 33 lines · 312 tokens per session scan A 265899557203
agent-context-kit AGENTS.md is an instructions file published in the GitHub repository MarceCandil/agent-context-kit (2 stars, last pushed 6mo ago), licensed MIT. It adds 312 tokens to every session, about $0.0016 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
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).
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.
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langchain AGENTS.md
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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).
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.