Borrowing it
Nothing to install: this file belongs to sichengchen/apple-calendar-cli. 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/sichengchen/apple-calendar-cli/main/AGENTS.mdgit clone --depth 1 https://github.com/sichengchen/apple-calendar-cliWrote 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/sichengchen/apple-calendar-cli/agents-md)<a href="https://agentmods.dev/instructions/sichengchen/apple-calendar-cli/agents-md"><img src="https://agentmods.dev/badge/instructions/sichengchen/apple-calendar-cli/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/sichengchen/apple-calendar-cli/agents-md"><img src="https://agentmods.dev/badge/instructions/sichengchen/apple-calendar-cli/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 | $0.00585 | $0.00585 |
| Opus 5.5 | $0.00234 | $0.00234 |
| Sonnet 5.5 | $0.00117 | $0.00117 |
| Haiku 4.5 | $0.00059 | $0.00059 |
Grade A, and why
apple-calendar-cli 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 29d 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 — 39 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Repository Guidelines
Project Structure & Module Organization
This Swift 6 package targets macOS 14+ and uses ArgumentParser and EventKit. Sources/apple-calendar-cli/AppleCalendarCLI.swift registers subcommands and global options. Keep CLI parsing in Commands/, Calendar access and skill installation in Services/, output representations in Models/, and shared helpers in Utilities/.
XCTest files live in Tests/apple-calendar-cli-tests/. The bundled agent reference is skills/apple-calendar-cli/SKILL.md. Info.plist supplies embedded Calendar permission metadata; scripts/ and .github/workflows/ handle verification and releases.
Build, Test, and Development Commands
make build: build the debug executable with SwiftPM.swift run apple-calendar-cli --help: run locally and inspect available commands.swift test: run the XCTest suite.swift test --filter DateParserTests: run a focused test class.make release: build an optimized executable and apply its local code signature.bash scripts/verify-permissions.sh .build/release/apple-calendar-cli: verify embedded permission metadata and signing identity.make install PREFIX="$HOME/.local": build and install into a custom prefix.swiftlint lint: check style when SwiftLint is installed.
Coding Style & Naming Conventions
Use four-space indentation, UpperCamelCase types, and lowerCamelCase properties and functions. Match filenames to their primary type, such as CreateEventCommand.swift. Use kebab-case CLI names and flags, such as create-event and --all-day.
Follow .swiftlint.yml: line lengths warn at 120 characters and fail at 150; trailing commas are allowed. Preserve existing JSON field names and date/time behavior. Update README usage and the bundled skill when command behavior changes.
Testing Guidelines
Name test files <Type>Tests.swift and test methods test<Behavior>. Cover invalid inputs, timezone behavior, and filesystem edge cases when relevant. Use temporary directories for installer tests and remove them during teardown. No numeric coverage threshold is configured. Before submitting code changes, run the tests, release build, and permission verification used by CI.
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.
- 29d ago First seen · 39 lines · 585 tokens per session scan A 4cbd87b85dfd
apple-calendar-cli AGENTS.md is an instructions file published in the GitHub repository sichengchen/apple-calendar-cli (9 stars, last pushed 13d ago), licensed MIT. It adds 585 tokens to every session, about $0.0023 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 2026-10-09.
apple-calendar-cli AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| apple-calendar-cli AGENTS.mdsichengchen/apple-calendar-cli | Instructions file | 9 | 13d ago | MIT | A | 585 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |