skills CLAUDE.md

skills CLAUDE.md is an instructions file for coding agents from longbridge/skills. It costs 3,106 tokens per session, scanned A, 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

Install

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.

agentmods
npx agentmods add instructions/longbridge/skills/claude-md
Clone the repo
git clone --depth 1 https://github.com/longbridge/skills

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.

agentmods badge for skills CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/longbridge/skills/claude-md.svg)](https://agentmods.dev/instructions/longbridge/skills/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/longbridge/skills/claude-md"><img src="https://agentmods.dev/badge/instructions/longbridge/skills/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 3,106 This file is loaded in full into every session.
When invoked 3,106 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.03106 $0.03106
Opus 5 $0.01553 $0.01553
Sonnet 5 $0.00621 $0.00621
Haiku 4.5 $0.00311 $0.00311

Measured 4d ago against content hash 3122321c0f3a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

skills 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 4d 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.

CLAUDE.md · 181 lines

How it starts

The opening of the file, as written. The whole thing — 181 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    # plugin marketplace entry
├── skills/                            # ~22 skill folders
│   ├── <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/
│   ├── architecture.md                # multilingual + CLI/MCP routing design
│   └── install.md                     # install / verify / FAQ
├── CLAUDE.md                          # this file
├── README.md
├── LICENSE                            # MIT
└── .gitignore

Conventions for adding or editing a skill

1. Slug + directory

  • Directory name must match ^[a-z0-9]+(-[a-z0-9]+)*$ (lowercase ASCII + hyphens).
  • It MUST equal the name: value in the SKILL.md frontmatter.
  • Existing skills are namespaced longbridge-* (e.g. longbridge-quote). The single base skill is just longbridge.
  • Slugs are immutable once published. Never rename or delete a published skill's slug. Installers (npx skills update) match by slug, so a rename does not upgrade the old install — it orphans it on every user's machine (stale + competing for the same triggers) while the new name is never picked up by update. Reorganize by adding/editing content under the existing slug. If a new slug is genuinely unavoidable, it is a breaking change: note it in the release notes and direct users to the full reinstall (scripts/update.sh), the only thing that clears orphaned slugs.

Read the full file on GitHub · 181 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. 4d 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 (52 stars, last pushed 8d ago), licensed MIT. It adds 3,106 tokens to every session, about $0.0155 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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