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/nutdnuy/webull-openapi-ai-plugin/webull-ordersnpx skills add nutdnuy/webull-openapi-AI-Plugin --skill webull-ordersgit clone --depth 1 https://github.com/nutdnuy/webull-openapi-AI-PluginWhat 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 | $0.00048 | $0.00712 |
| Opus 5 | $0.00024 | $0.00356 |
| Sonnet 5 | $0.00010 | $0.00142 |
| Haiku 4.5 | $0.00005 | $0.00071 |
Grade A, and why
webull-orders 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.
How it starts
The opening of the file, as written. The whole thing — 43 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Webull orders
Read the exact endpoint entry in references/endpoints.json, follow its schema_ref into references/openapi.json, and read authentication rules in references/authentication.md before building any request. Use the official Webull Open API reference and current trading documentation.
First-use onboarding
Before any order-related request, check for WEBULL_APP_KEY and WEBULL_APP_SECRET in the secure environment. If the API Key is missing, ask the user to configure it securely and stop; never request credentials in chat. Require an active WEBULL_ACCESS_TOKEN before preview or any order operation.
Supported endpoints
POST /openapi/trade/order/preview— preview only; gate withPREVIEW.POST /openapi/trade/order/place— write; require exact confirmation andPLACE.POST /openapi/trade/order/replace— write; require exact confirmation andREPLACE.POST /openapi/trade/order/cancel— write; require exact confirmation andCANCEL.GET /openapi/trade/order/history— read-only history.GET /openapi/trade/order/open— read-only open orders.GET /openapi/trade/order/detail— read-only detail.
All paths are documented in the official reference index.
Safety workflow
-
For preview, obtain the exact user-provided instrument, side, quantity, order type, price/trigger, time-in-force, account, and other catalog-required fields. Read the catalog before constructing the body, then ask for
PREVIEWconfirmation:python scripts/webull_api.py request --method POST --path /openapi/trade/order/preview --body-file ./order-preview.json --allow-write --write-confirmation PREVIEW -
Before place, replace, or cancel, display a concise request-payload summary: environment, account (redacted), symbol, side, quantity, order type, price/trigger, time-in-force, client order id, and the exact operation. Do not execute until the user gives the corresponding exact gate:
PLACE,REPLACE, orCANCEL. -
Construct each body independently from
references/endpoints.json; never copy preview output blindly into a write request and never infer missing fields. Invoke only after confirmation, using the documented method/path:
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.
- 2d ago First seen · 43 lines · 48 tokens per session scan A 8ac88150c520
webull-orders is a skill published in the GitHub repository nutdnuy/webull-openapi-AI-Plugin (26 stars, last pushed 1mo ago), licensed MIT. It adds 48 tokens to every session and 712 once invoked, about $0.0002 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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