Borrowing it
Nothing to install: this file belongs to longportapp/openapi. 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/longportapp/openapi/main/CLAUDE.mdgit clone --depth 1 https://github.com/longportapp/openapiWrote 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/longportapp/openapi/claude-md)<a href="https://agentmods.dev/instructions/longportapp/openapi/claude-md"><img src="https://agentmods.dev/badge/instructions/longportapp/openapi/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/longportapp/openapi/claude-md"><img src="https://agentmods.dev/badge/instructions/longportapp/openapi/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 | $0.00611 | $0.00611 |
| Opus 5.5 | $0.00244 | $0.00244 |
| Sonnet 5.5 | $0.00122 | $0.00122 |
| Haiku 4.5 | $0.00061 | $0.00061 |
Grade A, and why
openapi 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.
This is a copy
97% identical to openapi AGENTS.md — 6 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Guidelines
After modifying Rust code
Run the following commands from the workspace root:
cargo clippy --all --all-features
cargo +nightly fmt --all
Note:
cargo +nightly fmtmay reflow doc comments (e.g./// @param …lines). Do not revert those changes — they are intentional formatting output and should be committed as-is.
After modifying the Node.js SDK (nodejs/)
Build the native .node binary from the nodejs/ directory:
npm run build:debug
nodejs/index.d.ts and nodejs/index.js are auto-generated by
npm run build:debug — never edit them by hand.
After updating the proto submodule (rust/crates/proto/openapi-protobufs/)
Run the following command from the workspace root to regenerate the Rust proto source files
(e.g. rust/crates/proto/src/longbridge.control.v1.rs,
rust/crates/proto/src/longbridge.quote.v1.rs,
rust/crates/proto/src/longbridge.trade.v1.rs):
cargo make protoc
The generated *.rs files under rust/crates/proto/src/ are auto-generated — never edit
them by hand.
After modifying the Python SDK API (python/)
python/pysrc/longport/openapi.pyi is a manually maintained type-stub
file that provides type hints and docstrings for the native Rust/PyO3 extension
module. IDEs and type checkers (mypy/pyright) rely on it for autocompletion and
static analysis.
When you add, remove, or change any #[pyclass]/#[pymethods] definitions in
python/src/, you must update openapi.pyi accordingly — keeping
signatures, type annotations, and docstrings in sync with the Rust
implementation.
After modifying the C SDK (c/)
c/csrc/include/longport.h is auto-generated by cbindgen during the
build — never edit it by hand. Rebuild the C crate to update it:
cargo build -p longport-c
After any change
Update CHANGELOG.md in the workspace root to document notable changes. The
format follows Keep a Changelog. Add an
entry under the [Unreleased] section in the appropriate subsection (Added,
Changed, Fixed, Breaking changes, etc.). If the [Unreleased] section
does not yet exist, create it at the top of the changelog (above the latest
versioned block).
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 · 70 lines · 611 tokens per session scan A 129832405fd1
openapi CLAUDE.md is an instructions file published in the GitHub repository longportapp/openapi (10 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 611 tokens to every session, about $0.0024 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 97% identical to openapi AGENTS.md, differing in 6 lines, and is treated as a copy.
openapi CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| openapi CLAUDE.mdlongportapp/openapi | Instructions file | 10 | 2mo ago | Apache-2.0 | A | 611 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |