Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/eveld/claude/before-code-analysisnpx skills add eveld/claude --skill before-code-analysisgit clone --depth 1 https://github.com/eveld/claudeWhat 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 | $0.00029 | $0.00239 |
| Opus 5 | $0.00015 | $0.00120 |
| Sonnet 5 | $0.00006 | $0.00048 |
| Haiku 4.5 | $0.00003 | $0.00024 |
Grade A, and why
before-code-analysis 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 2d 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
Before Code Analysis
STOP: You're about to read multiple files to understand how something works.
Use codebase-analyzer Instead
The codebase-analyzer agent is specifically designed for understanding code implementation. It will read files in context and explain how systems work.
Instead of:
Read(file_path="src/auth/handler.js")
Read(file_path="src/auth/service.js")
Read(file_path="src/auth/middleware.js")
[manually piecing together how auth works]
Do this:
Task(
subagent_type="codebase-analyzer",
prompt="Analyze how the authentication system works, including handlers, services, and middleware",
description="Analyze auth system"
)
When Manual Reading Is OK
Only read files manually when:
- You need to see exact implementation of a single function
- You're making specific edits to known files
- You're verifying a specific detail
For understanding systems or flows, use codebase-analyzer.
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.
- 2d ago First seen · 39 lines · 29 tokens per session scan A d86ef2174468
before-code-analysis is a skill published in the GitHub repository eveld/claude (10 stars, last pushed 6mo ago), licensed MIT. It adds 29 tokens to every session and 239 once invoked, about $0.0001 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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