Borrowing it
Nothing to install: this file belongs to Flexonze/claude-init. 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/Flexonze/claude-init/main/.claude/skills/prime/SKILL.mdgit clone --depth 1 https://github.com/Flexonze/claude-initWrote 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/skills/flexonze/claude-init/prime)<a href="https://agentmods.dev/skills/flexonze/claude-init/prime"><img src="https://agentmods.dev/badge/skills/flexonze/claude-init/prime/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/skills/flexonze/claude-init/prime"><img src="https://agentmods.dev/badge/skills/flexonze/claude-init/prime.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 | $0.00024 | $0.00183 |
| Opus 5.5 | $0.00010 | $0.00073 |
| Sonnet 5.5 | $0.00005 | $0.00037 |
| Haiku 4.5 | $0.00002 | $0.00018 |
Grade A, and why
prime 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.
What it actually says
Prime - Codebase Understanding
Get a comprehensive understanding of the codebase and optionally dive deep into a specific feature.
Instructions
1. Explore the Codebase
Investigate and understand the codebase:
- Technology stack and architecture
- Project structure and key directories
- Important files and entry points
- Development workflow
2. Feature Analysis (Optional)
If $1 is provided, also investigate that specific feature:
- Find where the feature is implemented
- Understand how it works
- Identify related files and dependencies
- Note any relevant tests or configuration
3. Share Your Findings
Present what you learned about the codebase and feature in a clear, helpful way.
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 · 34 lines · 24 tokens per session scan A 4f0a473e98ef
prime is a skill published in the GitHub repository Flexonze/claude-init (10 stars, last pushed 7mo ago), licensed MIT. It adds 24 tokens to every session and 183 once invoked, about $0.0001 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 2026-08-31.
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