Borrowing it
Nothing to install: this file belongs to hiyeshu/codeck. 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/hiyeshu/codeck/main/AGENTS.mdgit clone --depth 1 https://github.com/hiyeshu/codeckWrote 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/hiyeshu/codeck/agents-md)<a href="https://agentmods.dev/instructions/hiyeshu/codeck/agents-md"><img src="https://agentmods.dev/badge/instructions/hiyeshu/codeck/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/hiyeshu/codeck/agents-md"><img src="https://agentmods.dev/badge/instructions/hiyeshu/codeck/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 | $0.01088 | $0.01088 |
| Opus 5.5 | $0.00435 | $0.00435 |
| Sonnet 5.5 | $0.00218 | $0.00218 |
| Haiku 4.5 | $0.00109 | $0.00109 |
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 2mo 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- codeck CLAUDE.md — 100% identical, 2 lines differ
How it starts
The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.
codeck — AI presentation skill
Architecture
codeck outputs a single HTML file, built by build-html.sh wrapping assemble.sh:
| Author | File | Role |
|---|---|---|
| Human (fixed) | engine.js + engine.css + build-html.sh |
Navigation, fragments, overview, speaker mode, progress bar, final HTML validation |
| AI (per deck) | custom.css |
:root variables + layout primitives + per-page styles + mobile |
| AI (per deck) | slides.html |
<section class="slide" data-notes="..."> free HTML |
Engine code is fixed. AI handles content and visuals only.
Deck room
/codeck opens ~/.codeck/projects/{slug}/
↓
MEMORY.md + channel/ + tasks/ + threads/ + roles/
↓
Decision Ask records live in threads/ before any runtime question
↓
@outline → deck.md
↓
@design → DESIGN.md + custom.css + slides.html → build-html.sh → single HTML
↓
@review → export (PDF/PPTX) / speech
Core idea: fixed role lanes own artifacts; dynamic people from diagnosis.md shape the judgment inside those lanes. The room is the durable scope; necessary asks are decision records first and UI questions second.
Room documents have rank:
- Current truth: MEMORY.md, deck.md, DESIGN.md, custom.css, slides.html, latest assembled HTML, speech.md when present.
- Work state: diagnosis.md, active tasks, open threads plus the Decision Ask ledger, roles/*.md, latest valid review.md.
- Audit trail: channel/YYYY-MM-DD.md, legacy PROJECT.md, legacy design-notes.md, superseded reviews, and old previews. Audit never overrides current truth.
Three diagnostic signals
- Domain — determines outline role
- Expression challenge — determines design role
- Audience starting point — determines review role (inverse: listener most likely to struggle)
Directory structure
Skills resolve their install location in this order: CODECK_SKILL_DIR / CODECK_DESIGN_DIR / CODECK_EXPORT_DIR env overrides → ${CLAUDE_PLUGIN_ROOT}/skills/* (Claude Code plugin install) → plugin cache globs (~/.claude/plugins/cache/*/codeck/*/skills/*, ~/.codex/plugins/cache/*/codeck/*/skills/*) → flat installs (~/.agents/skills/codeck*/, ~/.codex/skills/codeck*/, ~/.claude/skills/codeck*/). The first match wins, so the same SKILL.md works as a Claude Code plugin, a Codex plugin, or a flat skills.sh install. Sibling lane directories are derived by codeck/scripts/resolve-dirs.sh (siblings hold in every layout), sourced from each skill's unified Setup bootstrap block.
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.
- 2mo ago First seen · 78 lines · 1,088 tokens per session scan A 758f1c252557
codeck AGENTS.md is an instructions file published in the GitHub repository hiyeshu/codeck (197 stars, last pushed 3mo ago), licensed MIT. It adds 1,088 tokens to every session, about $0.0044 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 2026-08-30.
codeck AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| codeck AGENTS.mdhiyeshu/codeck | Instructions file | 197 | 3mo ago | MIT | A | 1,088 | Claude Code, Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 275k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |