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/deevsdeevs/agent-system/venue-expertnpx skills add DeevsDeevs/agent-system --skill venue-expertgit clone --depth 1 https://github.com/DeevsDeevs/agent-systemWrote 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/deevsdeevs/agent-system/venue-expert)<a href="https://agentmods.dev/skills/deevsdeevs/agent-system/venue-expert"><img src="https://agentmods.dev/badge/skills/deevsdeevs/agent-system/venue-expert.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 | $0.00228 | $0.02005 |
| Opus 5 | $0.00114 | $0.01002 |
| Sonnet 5 | $0.00046 | $0.00401 |
| Haiku 4.5 | $0.00023 | $0.00200 |
Grade A, and why
venue-expert 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 5d 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.
How it starts
The opening of the file, as written. The whole thing — 164 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Venue Expert
Hierarchical microstructure knowledge base for trading venues. Primary use cases: research, debugging, and building trading systems.
Purpose
Provide deep venue-specific expertise for:
- Quants building execution models and alpha signals
- Developers implementing feed handlers and order entry
- Researchers studying market microstructure
- Debuggers diagnosing trading system issues
Hierarchy Model
Knowledge is organized in an inheritance hierarchy:
Asset Class (equity, futures, crypto, fx)
|
v
Geography (amer, emea, apac)
|
v
Exchange (nasdaq, nyse, cme, binance)
Each level inherits concepts from its parent. Exchange-level files assume familiarity with geo-level and asset-class-level concepts.
Current Coverage
Implemented paths:
equity/- Equity market fundamentalsequity/amer/- US equity market structure (Reg NMS, NBBO, SIP, TRF)equity/amer/nasdaq/- Nasdaq-specific mechanics (ITCH, OUCH, crosses)futures/- Futures market fundamentalsfutures/apac/- APAC futures overviewfutures/apac/china/- Chinese futures (CTP, 5 exchanges, regulatory)futures/apac/china/shfe/- SHFE metals/energyfutures/apac/china/dce/- DCE ferrous/agriculturalfutures/apac/china/czce/- CZCE agricultural/chemicalsfutures/apac/china/cffex/- CFFEX financial futuresfutures/apac/china/ine/- INE internationalized products
Planned paths:
equity/amer/nyse/- NYSE mechanicsequity/emea/lse/- London Stock Exchangefutures/amer/cme/- CME Groupcrypto/binance/- Binance exchange
Navigation
Context Detection
Route to appropriate depth based on query specificity:
| Query Pattern | Target File |
|---|---|
| Generic equity concepts | equity/equity.md |
| US market structure, Reg NMS, NBBO | equity/amer/equity_amer.md |
| Nasdaq-specific (ITCH, NOII, crosses) | equity/amer/nasdaq/nasdaq.md |
| Generic futures concepts | futures/futures.md |
| APAC futures overview | futures/apac/futures_apac.md |
| Chinese futures, CTP, 夜盘 | futures/apac/china/futures_china.md |
| SHFE-specific (metals, CloseToday) | futures/apac/china/shfe/shfe.md |
| DCE-specific (iron ore, stop orders) | futures/apac/china/dce/dce.md |
| CZCE-specific (3-digit years, UpdateMillisec=0) | futures/apac/china/czce/czce.md |
| CFFEX-specific (index futures, restrictions) | futures/apac/china/cffex/cffex.md |
| INE-specific (crude oil, foreign access) | futures/apac/china/ine/ine.md |
What ships with it
30 files 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.
- equity/amer/equity_amer.md 9.9 KB
- equity/amer/nasdaq/nasdaq.md 12 KB
- equity/amer/nasdaq/references/regulatory/nasdaq_rules.md 5.4 KB
- equity/amer/nasdaq/references/specs/itch_protocol.md 11 KB
- equity/amer/nasdaq/references/specs/ouch_protocol.md 7.7 KB
- equity/amer/nasdaq/references/specs/totalview.md 5.5 KB
- equity/amer/references/regulatory/finra_rules.md 5.0 KB
- equity/amer/references/regulatory/rule_605_606.md 5.3 KB
- equity/amer/references/regulatory/sec_reg_nms.md 5.3 KB
- equity/amer/references/specs/sip_specs.md 10 KB
- equity/equity.md 3.4 KB
- futures/apac/china/cffex/cffex.md 4.4 KB
- futures/apac/china/czce/czce.md 3.6 KB
- futures/apac/china/dce/dce.md 3.7 KB
- futures/apac/china/futures_china.md 19 KB
- futures/apac/china/ine/ine.md 3.9 KB
- futures/apac/china/references/models/causal_analysis.md 20 KB
- futures/apac/china/references/models/cross_product_analysis.md 13 KB
- futures/apac/china/references/models/queue_position.md 2.8 KB
- futures/apac/china/references/models/spreads.md 10.0 KB
- futures/apac/china/references/models/trade_direction.md 3.2 KB
- futures/apac/china/references/regime_changes.md 22 KB
- futures/apac/china/references/specs/ctp_market_data.md 7.2 KB
- futures/apac/china/references/specs/data_quality_checklist.md 6.8 KB
- futures/apac/china/references/specs/failure_modes.md 30 KB
- futures/apac/china/shfe/shfe.md 3.2 KB
- futures/apac/futures_apac.md 3.4 KB
- futures/futures.md 8.2 KB
- futures/references/flow_interpretation.md 9.8 KB
- futures/references/spreads.md 8.3 KB
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.
- 5d ago First seen · 164 lines · 228 tokens per session scan A 856e5d6a9ed7
venue-expert is a skill published in the GitHub repository DeevsDeevs/agent-system (40 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 228 tokens to every session and 2,005 once invoked, about $0.0011 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 2026-08-30.
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