Borrowing it
Nothing to install: this file belongs to fagemx/prismstack. 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/fagemx/prismstack/main/CLAUDE.mdgit clone --depth 1 https://github.com/fagemx/prismstackWrote 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/fagemx/prismstack/claude-md)<a href="https://agentmods.dev/instructions/fagemx/prismstack/claude-md"><img src="https://agentmods.dev/badge/instructions/fagemx/prismstack/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/fagemx/prismstack/claude-md"><img src="https://agentmods.dev/badge/instructions/fagemx/prismstack/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 | $0.00303 | $0.00303 |
| Opus 5.5 | $0.00121 | $0.00121 |
| Sonnet 5.5 | $0.00061 | $0.00061 |
| Haiku 4.5 | $0.00030 | $0.00030 |
Grade A, and why
prismstack 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 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
Prismstack — Developer Handoff
Project Overview
Prismstack is a 10-skill domain stack builder tool, installed as Claude Code skills. It takes gstack methodology and produces domain-specific skill packs. Skills are installed to ~/.claude/skills/prismstack/.
Directory Structure
prismstack/
skills/ # Skill definition files (YAML frontmatter + Markdown body)
bin/ # Executable scripts (install, helpers)
docs/ # Documentation and reference materials
test/ # Test scripts
Installation
bash bin/install.sh
Testing
bash test/install-test.sh
Skill Format
Each skill file uses YAML frontmatter followed by a Markdown body:
---
name: skill-name
version: 0.1.0
origin: prismstack
description: What this skill does
allowed-tools:
- Bash
- Read
- Write
---
# Skill Title
Skill instructions in Markdown...
Commit Style
Use conventional commits:
feat:— new feature or skillfix:— bug fixdocs:— documentation changes
Language
- Skill content: 繁體中文
- Code and comments: English
Reference Materials
gstack knowledge base is located at: C:\ai_project\guardian\docs\tech\gstack\
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 · 66 lines · 303 tokens per session scan A 04a949ae8c21
prismstack CLAUDE.md is an instructions file published in the GitHub repository fagemx/prismstack (1 stars, last pushed 6mo ago), licensed MIT. It adds 303 tokens to every session, about $0.0012 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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