Borrowing it
Nothing to install: this file belongs to iliaal/whetstone. 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/iliaal/whetstone/master/AGENTS.mdgit clone --depth 1 https://github.com/iliaal/whetstoneWrote 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/iliaal/whetstone/agents-md)<a href="https://agentmods.dev/instructions/iliaal/whetstone/agents-md"><img src="https://agentmods.dev/badge/instructions/iliaal/whetstone/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/iliaal/whetstone/agents-md"><img src="https://agentmods.dev/badge/instructions/iliaal/whetstone/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 | $0.07540 | $0.07540 |
| Opus 5.5 | $0.03016 | $0.03016 |
| Sonnet 5.5 | $0.01508 | $0.01508 |
| Haiku 4.5 | $0.00754 | $0.00754 |
Grade A, and why
whetstone 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 today.
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 — 394 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Whetstone
Claude Code plugin for PHP/React/Python/JavaScript/TypeScript workflows. Includes the plugin (agents, commands, skills, hooks), a skill distillery, and a CLI for cross-tool conversion.
Repository structure
whetstone/
├── .claude-plugin/
│ └── marketplace.json # Marketplace catalog
├── distillery/ # Skill distillery (generate skills from skills.sh)
│ ├── scripts/
│ │ ├── distiller.py # Search, fetch, validate, eval, harvest, test
│ │ └── test_distiller.py # pytest tests for distiller
│ └── generated-skills/ # Generated skill output directory
├── scripts/
│ ├── update-metadata.sh # Update component counts in plugin.json + marketplace.json
│ ├── generate-skill-hooks.sh # Generate hook patterns from SKILL.md frontmatter
│ ├── mirror-to-ai-skills.sh # Mirror plugin skills to ai-skills public repo
│ ├── configure-codex-skill-sources.py # Disable duplicate direct sources in Codex
│ ├── install-codex-plugin.sh # Install/enable plugin, then retire duplicate sources
│ ├── refresh-codex-plugin.sh # Cachebust/reinstall Codex without dirtying release version
│ ├── sync-to-tools.sh # Symlink skills to .agents/.kilocode; retire legacy Codex links
│ └── update-plugin.sh # Update locally installed plugin to latest version
├── CHANGELOG.md # Version history
└── plugins/
└── whetstone/ # The plugin
├── .codex-plugin/
│ └── plugin.json # Codex skills-plugin metadata
├── .claude-plugin/
│ └── plugin.json # Plugin metadata
├── agents/ # Agents (all `ia-<name>.md`, flat layout)
├── shared-references/ # Reference content shared by agents and commands, loaded via Read
├── commands/ # Slash commands (all `ia-<name>.md`); only command files here
│ └── scripts/ # Helper scripts commands run
├── skills/ # Skills (all `ia-<name>/`)
│ └── ia-<skill-name>/
│ ├── SKILL.md # Skill content
│ ├── references/ # Optional supplementary docs
│ └── scripts/ # Optional bundled scripts
├── hooks/ # Record tasks, then add skills to subagent starting context
└── README.md # Plugin documentation
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.
- today Changed · +7 lines · +439 tokens per session f3431f59f46f
- 8d ago Changed · +2 lines · +106 tokens per session f40164e95738
- 10d ago Changed · +2 tokens per session 485b8d38b008
- 25d ago Changed · -19 tokens per session 5979d32a2fa2
- 26d ago Changed · -2 lines · -166 tokens per session 791f3926f939
- 29d ago Changed · +61 lines · +1,520 tokens per session 0c6a4d6e7bb4
- 1mo ago Changed · -4 lines · +13 tokens per session 2c29c6ae679a
- 1mo ago First seen · 330 lines · 5,645 tokens per session scan A 593cffe13493
whetstone AGENTS.md is an instructions file published in the GitHub repository iliaal/whetstone (35 stars, last pushed yesterday), licensed MIT. It adds 7,540 tokens to every session, about $0.0302 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.
Other instructions, from other repositories
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Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
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AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.