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 skills add JansenAnalytics/claudex --skill fundamental-research-enginegit clone --depth 1 https://github.com/JansenAnalytics/claudexWrote 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/jansenanalytics/claudex/fundamental-research-engine)<a href="https://agentmods.dev/skills/jansenanalytics/claudex/fundamental-research-engine"><img src="https://agentmods.dev/badge/skills/jansenanalytics/claudex/fundamental-research-engine.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 | $0.00087 | $0.00456 |
| Opus 5 | $0.00044 | $0.00228 |
| Sonnet 5 | $0.00017 | $0.00091 |
| Haiku 4.5 | $0.00009 | $0.00046 |
Grade A, and why
fundamental-research-engine scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Fundamental Research Engine
Quick Start
SKILL=${CLAUDE_SKILLS_DIR:-$HOME/.claude-agent/.claude/skills}/fundamental-research-engine/scripts
# Instrument research (auto-detects asset class)
python3 $SKILL/research.py EURUSD # FX: rates + COT + retail + strength
python3 $SKILL/research.py XAUUSD # Metal: COT + yields + F&G
python3 $SKILL/research.py BTCUSD # Crypto: F&G
python3 $SKILL/research.py BRENT # Energy: COT
# Daily market brief (all key instruments + macro)
python3 $SKILL/research.py --daily-brief
What Each Report Includes
| Asset Class | Data Points |
|---|---|
| Forex | Price, rate differential, COT, retail sentiment, currency strength |
| Metals | Price, COT, yield curve, Fear & Greed |
| Crypto | Price, Fear & Greed |
| Energy | Price, COT |
| Indices | Price, Fear & Greed |
| All | CB rates, US yields |
Depends On
market-data-engine→ price data, currency strengtheconomic-data-collector→ rates, yields, calendarsentiment-engine→ COT, retail, Fear & Greedmacro-briefing→ macro context
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 3d ago First seen · 48 lines · 87 tokens per session scan A 2be682a2a932
fundamental-research-engine is a skill published in the GitHub repository JansenAnalytics/claudex (5 stars, last pushed 2mo ago), licensed MIT. It adds 87 tokens to every session and 456 once invoked, about $0.0004 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 2026-09-03.
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