Borrowing it
Nothing to install: this file belongs to saadshahd/moo.md. 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/saadshahd/moo.md/main/CLAUDE.mdgit clone --depth 1 https://github.com/saadshahd/moo.mdWrote 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/saadshahd/moo.md/claude-md)<a href="https://agentmods.dev/instructions/saadshahd/moo.md/claude-md"><img src="https://agentmods.dev/badge/instructions/saadshahd/moo.md/claude-md.svg" alt="Measured on agentmods" 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 | $0.01016 | $0.01016 |
| Opus 5 | $0.00508 | $0.00508 |
| Sonnet 5 | $0.00203 | $0.00203 |
| Haiku 4.5 | $0.00102 | $0.00102 |
Grade A, and why
moo.md 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 7d 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 — 65 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
What This Is
moo — mind on output. A Claude Code plugin that helps humans stay present and think clearly while working with AI.
Conventions
Authoring doctrine for this repo's own skills, hooks, and runtime files lives in the moo-authoring skill, which fires when you add or change one. What stays here is the set whose violation produces no error.
Description scope. A skill's description carries the selection decision — what makes the skill fire — and its body carries the procedure. That is a placement rule, not a claim about how much a description can hold: the description is the only text present when the selection decision is made, and execution guidance either duplicates the body or loads in every session to serve a minority of them. A skill with disable-model-invocation: true is the exception the rule predicts: nothing selects it, so its description is an invocation summary for the human.
YAML. Multi-line YAML blocks (|, >) in frontmatter are truncated by Claude Code, which silently breaks auto-triggering.
Hooks always fail open: exit 0 with valid JSON on any error. A hook that fails closed silently disables itself for every future session.
Enforcement: nothing here is mechanically checked — the repo has no doc gate, and no shell file in this repo is checked by anything.
Philosophy
moo drives toward four outcomes: reduce decision regret, increase conceptual clarity, leave fewer but stronger artifacts, preserve the capacity to own what you produce. Every change to this project must serve at least one.
See PHILOSOPHY.md for core identity and mission.
See hope/PHILOSOPHY.md for hope beliefs, principles, and constraints — including "Hard Constraints" for plugin-specific audit items.
Model-Judgment Boundaries
A skill or hook that leans on a model's judgment (a judge, a generated artifact, an LLM check) has a correctness rate, not a guarantee. Its failure mode is a confident, valid-shaped wrong answer no enumerable error case names.
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.
- 7d ago First seen · 65 lines · 1,016 tokens per session scan A 950dd5be38f9
moo.md CLAUDE.md is an instructions file published in the GitHub repository saadshahd/moo.md (34 stars, last pushed 21d ago), licensed MIT. It adds 1,016 tokens to every session, about $0.0051 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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