skills: Instructions file for Claude Code

CLAUDE.md

skills CLAUDE.md is an instructions file for Claude Code from longbridge/skills. It costs 3,231 tokens per session, scanned C, original, MIT.

Repository instructions for Claude Code when maintaining a collection of Longbridge Securities skills. Longbridge Securities is a financial platform offering market data and investing tools.

In plain words
What is it for?
Adding or editing skills, choosing where files belong, and following the repository's rules for documentation, scripts, and commands.
Why use it?
They explain the repository layout and conventions, so new or edited skills follow the same structure and multilingual command style.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions .claude-plugin; mentions CLAUDE.md; mentions Claude Code.

This is longbridge/skills's own configuration. It tells Claude Code how to work on skills itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything skills configures →

Reuse

Borrowing it

Nothing to install: this file belongs to longbridge/skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/longbridge/skills/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/longbridge/skills

Made for: Claude Code.

Wrote 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.

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README.md
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Your own site
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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.

agentmods 80×15 button for skills CLAUDE.md

Your own site · 80×15
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Per session 3,231 This file is loaded in full into every session.
When invoked 3,231 The same file — it is already loaded in full.
Security scan C 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.03231 $0.03231
Opus 5.5 $0.01292 $0.01292
Sonnet 5.5 $0.00646 $0.00646
Haiku 4.5 $0.00323 $0.00323

Measured 10d ago against content hash 0ce8336cbfda, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

skills CLAUDE.md scanned grade C with 2 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 10d 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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

9. The plugin auto-discovers it (`skills/.claude-plugin/plugin.json` declares `skills: ["./"]`); no manifest edit needed. Keep the plugin root at `skills/` — everything outside it (CI, docs, README, `scripts/update.sh`)

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

9. The plugin auto-discovers it (`skills/.claude-plugin/plugin.json` declares `skills: ["./"]`); no manifest edit needed. Keep the plugin root at `skills/` — everything outside it (CI, docs, README, `scripts/update.sh`)
CLAUDE.md · 182 lines

How it starts

The opening of the file, as written. The whole thing — 182 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md — repo conventions for Claude Code

This file briefs Claude Code when working inside this repo (adding new skills, editing existing ones, fixing docs). It's not for end-users — they install via the methods in docs/install.md.

What this repo is

~22 Agent Skills that wrap the Longbridge Securities platform — quotes, charts, fundamentals, valuation, news, watchlist, account analytics, etc. Multilingual triggers (Simplified Chinese / Traditional Chinese / English). The default style is prompt-only (SKILL.md tells the LLM what longbridge ... command to run); scripts/ and commands/ subfolders are allowed but should be opt-in for clear runtime needs (DOCX generation, chart helpers, slash commands), not as a wrapper-by-default.

Layout

longbridge-skills/
├── .claude-plugin/marketplace.json    # marketplace entry — plugin source is ./skills
├── skills/                            # the plugin root: only this directory ships in the plugin
│   ├── .claude-plugin/plugin.json     # plugin manifest (name, version, privacyPolicyUrl, skills: ["./"])
│   ├── <slug>/
│   │   ├── SKILL.md                   # required
│   │   ├── references/                # optional — on-demand detail loaded by the LLM
│   │   ├── scripts/                   # optional — Python helpers (e.g. DOCX, charts) when there's a clear runtime need
│   │   └── commands/                  # optional — Claude Code slash commands (`/<command>`)
│   └── ...
├── docs/                              # repo docs (not shipped in the plugin)
│   ├── architecture.md                # multilingual + CLI/MCP routing design
│   └── install.md                     # install / verify / FAQ
├── CLAUDE.md                          # this file (outside the plugin root)
├── README.md
├── LICENSE                            # MIT
└── .gitignore

Conventions for adding or editing a skill

1. Slug + directory

Read the full file on GitHub · 182 lines

Changes

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.

  1. 10d ago Changed · +1 lines · +125 tokens per session scan A → C 0ce8336cbfda
  2. 1mo ago First seen · 181 lines · 3,106 tokens per session scan A 3122321c0f3a

Subscribe to this mod's changes

skills CLAUDE.md is an instructions file published in the GitHub repository longbridge/skills (66 stars, last pushed today), licensed MIT. It adds 3,231 tokens to every session, about $0.0129 per session on Opus 5.5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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