Borrowing it
Nothing to install: this file belongs to stag-build/phonebook. 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/stag-build/phonebook/main/CLAUDE.mdgit clone --depth 1 https://github.com/stag-build/phonebookWrote 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/stag-build/phonebook/claude-md)<a href="https://agentmods.dev/instructions/stag-build/phonebook/claude-md"><img src="https://agentmods.dev/badge/instructions/stag-build/phonebook/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 | $0.00235 | $0.00235 |
| Opus 5 | $0.00118 | $0.00118 |
| Sonnet 5 | $0.00047 | $0.00047 |
| Haiku 4.5 | $0.00023 | $0.00023 |
Grade A, and why
phonebook 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.
What it actually says
@stag-build/phonebook
Static Storybook-style gallery generated from Compose @Preview / SwiftUI #Preview screenshots. See PLAN.md for the full plan.
Model/agent delegation (token budget)
Keep the main (expensive) model for: architecture, manifest schema, tricky parsing (preview scanning, xcresult harvesting), and reviewing subagent output. Delegate the rest:
implementer(sonnet): any module with a clear spec — CLI command boilerplate, site HTML/CSS/JS, MCP tool wiring, sample apps. Write the spec in the prompt (inputs, outputs, file paths, acceptance check), then hand off.build-triage(haiku): every gradle/xcodebuild/npm/test run whose output might be long. Never read raw build logs in the main context.docs-writer(sonnet): README, setup guides, CI recipes.- Built-in
Exploreagent withmodel: haikufor any multi-file search/reconnaissance.
Batch independent delegations in parallel. Do not delegate tasks whose spec would be longer than the implementation.
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 · 15 lines · 235 tokens per session scan A 3e6d9de1dd3f
phonebook CLAUDE.md is an instructions file published in the GitHub repository stag-build/phonebook (10 stars, last pushed 6d ago), licensed MIT. It adds 235 tokens to every session, about $0.0012 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 2026-08-31.
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