Borrowing it
Nothing to install: this file belongs to nweii/apple-calendar-mcp. 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/nweii/apple-calendar-mcp/main/AGENTS.mdgit clone --depth 1 https://github.com/nweii/apple-calendar-mcpWrote 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/nweii/apple-calendar-mcp/agents-md)<a href="https://agentmods.dev/instructions/nweii/apple-calendar-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/nweii/apple-calendar-mcp/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/nweii/apple-calendar-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/nweii/apple-calendar-mcp/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 | $0.00276 | $0.00276 |
| Opus 5 | $0.00138 | $0.00138 |
| Sonnet 5 | $0.00055 | $0.00055 |
| Haiku 4.5 | $0.00028 | $0.00028 |
Grade A, and why
apple-calendar-mcp 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 8d 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
Apple Calendar MCP
This repository provides single-account iCloud Calendar access through a stateless MCP server on Cloudflare Workers.
Boundaries
- Keep the Worker single-owner and stateless. OAuth state belongs in the
OAUTH_KVbinding. - Keep Apple credentials in the Worker secrets
ICLOUD_USERNAMEandICLOUD_APP_PASSWORD. Logs, errors, fixtures, and documentation must contain no credential values. - Send authenticated CalDAV requests only to discovered HTTPS Apple hosts. Tool arguments never select an upstream host.
- Treat calendar and event hrefs as opaque identifiers. Mutations must use the latest ETag and surface conflicts.
- Expose mutation tools only when the OAuth grant contains
calendar:write. - Preserve unsupported iCalendar properties during unrelated updates.
- Keep account-specific routes, identifiers, and operational notes outside this repository.
Checks
Run these checks serially before committing:
bun run test
bun run typecheck
bun run cloudflare:check
The change is complete when the checks pass and tracked files contain no account-specific hostname, Cloudflare account or binding ID, Apple email address, secret value, or private repository link.
Documentation
Keep setup steps in the README. Keep the copyable agent procedure in docs/agent-setup-prompt.md. Update both when a deployment or authorization step 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.
- 8d ago First seen · 30 lines · 276 tokens per session scan A 0143641aeadf
apple-calendar-mcp AGENTS.md is an instructions file published in the GitHub repository nweii/apple-calendar-mcp (0 stars, last pushed 11d ago), licensed MIT. It adds 276 tokens to every session, about $0.0014 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
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.
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.
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).
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).
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.
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.