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/lkuczborski/codeck/agents-mdgit clone --depth 1 https://github.com/lkuczborski/CodeckWhat 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 | $0.00612 | $0.00612 |
| Opus 5 | $0.00306 | $0.00306 |
| Sonnet 5 | $0.00122 | $0.00122 |
| Haiku 4.5 | $0.00061 | $0.00061 |
Grade A, and why
Codeck 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.
How it starts
The opening of the file, as written. The whole thing — 32 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Repository Guidelines
Project Structure & Module Organization
Codeck is a Swift Package Manager project for macOS 14+. Source code lives in Sources/ and is split into three targets: Codeck for the native macOS app, CodeckCore for shared document and model logic, and CodeckMCP for the codeck-mcp executable. Tests live in Tests/CodeckTests. App and document icons are in Resources/, sample .mdeck decks are in Examples/, and the static site is in docs/. Generated build products belong in .build/ or dist/ and should not be committed.
Build, Test, and Development Commands
brew bundle: install local tools (swiftformat,swiftlint).swift build: compile all package targets.swift test: run the XCTest suite.swift run codeck-mcp: run the file-based MCP server from the repository root.script/format.sh: formatPackage.swift,Sources, andTests.script/lint.sh: run SwiftFormat lint mode and SwiftLint.script/build_and_run.sh [run|--debug|--logs|--telemetry|--verify]: build an app bundle indist/and launch or inspect it.
Coding Style & Naming Conventions
Use Swift 6 conventions and keep code formatted by SwiftFormat. The root .swiftformat uses 4-space indentation, --maxwidth 160, preserved argument and collection wrapping, trimmed whitespace, and no semicolons. SwiftLint covers Package.swift, Sources, and Tests; notable rules include sorted imports, closure spacing, first(where:)/contains preferences, and line length warnings at 160 characters. Prefer clear Swift type names in UpperCamelCase and methods/properties in lowerCamelCase. Keep target-specific code inside its target directory.
Testing Guidelines
Tests use XCTest and are grouped by feature in Tests/CodeckTests, usually with filenames ending in Tests.swift. Name test methods descriptively, for example testParsesThemeAndSlideSeparatorsOutsideFences. Run swift test before submitting changes; add or update tests for parser behavior, document mutations, MCP protocol handling, and user-visible model logic.
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 · 32 lines · 612 tokens per session scan A 3eb8d17ab11a
Codeck AGENTS.md is an instructions file published in the GitHub repository lkuczborski/Codeck (41 stars, last pushed 1mo ago), licensed MIT. It adds 612 tokens to every session, about $0.0031 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 2026-08-30.
Other instructions, from other repositories
mq commit.instructions.md
Instructions for harehare/mq: Use the following format for commit messages.
apm python.instructions.md
Python development guidelines.
core copilot-instructions.md
Instructions for asdecided/core: These decisions are already accepted. Do not re-open or contradict them; ask the AsDecided MCP tools (getartifact, searchartifacts) for the full text before proposing a change that touches one.
research-os AGENTS.md
Instructions for lxinfei5/research-os, covering researchos — constitution, §0 what this is, §1 directory discipline, §2 half-life (innovation 1) — memory design and §3 behavior pillars (innovations 2–5).
seekstone CLAUDE.md
Instructions for shaqmughal/seekstone, covering claude.md, what this repo is, commands, the harness itself (run after npm install) and architecture.
CodexPotter AGENTS.md
Instructions for breezewish/CodexPotter, covering repository guidelines, workflow principles, engineering rules, core principles: simplicity & readability and better maintainability.