Borrowing it
Nothing to install: this file belongs to TechDufus/oh-my-claude. 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/TechDufus/oh-my-claude/main/CLAUDE.mdgit clone --depth 1 https://github.com/TechDufus/oh-my-claudeWrote 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/techdufus/oh-my-claude/claude-md)<a href="https://agentmods.dev/instructions/techdufus/oh-my-claude/claude-md"><img src="https://agentmods.dev/badge/instructions/techdufus/oh-my-claude/claude-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/techdufus/oh-my-claude/claude-md"><img src="https://agentmods.dev/badge/instructions/techdufus/oh-my-claude/claude-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 | $0.00978 | $0.00978 |
| Opus 5 | $0.00489 | $0.00489 |
| Sonnet 5 | $0.00196 | $0.00196 |
| Haiku 4.5 | $0.00098 | $0.00098 |
Grade A, and why
oh-my-claude CLAUDE.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 9d 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 — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.
oh-my-claude Development
Claude Code plugin providing ultrawork mode, context protection, and specialized agent workflows.
Structure
├── .claude-plugin/marketplace.json # Marketplace registry (version x2)
├── .github/workflows/validate-plugin.yml
├── PLUGIN-STRUCTURE.md # Detailed architecture guide
├── tests/oh-my-claude/hooks/ # Hook unit tests
│ └── CLAUDE.md # Testing conventions
└── plugins/oh-my-claude/ # The actual plugin
├── .claude-plugin/plugin.json # Plugin metadata (version x1)
├── agents/ # 7 specialized agents
├── docs/ # Authoring guides and compatibility notes
├── hooks/ # Python hooks (PEP 723)
│ └── CLAUDE.md # Hook development patterns
├── commands/ # /prime (auto-discovered)
├── skills/ # Skills (in plugin.json)
│ └── oh-my-claude-runtime/ # Runtime workflow guidance skill
└── .mcp.json # Plugin MCP servers
Plugin-root CLAUDE.md is not loaded as runtime context by current Claude Code. Ship runtime behavior through hooks, skills, agents, commands, MCP, and plugin settings instead.
Development Workflow
Prerequisites
jq- JSON validation- Python 3.11+ - Hooks auto-install deps via
uv
Version Bumping (CRITICAL)
Claude Code caches plugins. Any change requires bumping version in BOTH:
.claude-plugin/marketplace.json-metadata.versionANDplugins[0].versionplugins/oh-my-claude/.claude-plugin/plugin.json
Then: /plugin update oh-my-claude and start new session.
Testing
Run hook unit tests:
cd tests/oh-my-claude/hooks
uv run --with pytest pytest . -v
CI/CD
GitHub Actions validates: JSON syntax, version sync across files, no ../ paths, shellcheck, ruff linting, pytest, and skill directories. Pytest covers structured hook args and hook script existence.
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.
- 9d ago First seen · 105 lines · 978 tokens per session scan A de49cceccefb
oh-my-claude CLAUDE.md is an instructions file published in the GitHub repository TechDufus/oh-my-claude (176 stars, last pushed 1mo ago), licensed MIT. It adds 978 tokens to every session, about $0.0049 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.
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