stock-analysis-skill: Skill for Claude Code

.claude/skills/stock-analysis/SKILL.md

stock-analysis is a skill for Claude Code from yanglaiyang/stock-analysis-skill. It costs 38 tokens per session (400 once invoked), scanned A, original, MIT.

A stock-analysis workflow that researches a company and produces an HTML report with charts.

In plain words
What is it for?
It runs an analysis from a company name and stock code, checks available API keys, creates the report, and verifies that its charts and diagrams render.
Why use it?
It provides a defined way to analyze a stock and troubleshoot missing charts or Mermaid diagrams, which are text-based technical diagrams.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions subagents.

This is yanglaiyang/stock-analysis-skill's own configuration. It tells Claude Code how to work on stock-analysis-skill 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 stock-analysis-skill configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python3 src/stock_analyzer.py -c "<company, code>".

Reuse

Borrowing it

Nothing to install: this file belongs to yanglaiyang/stock-analysis-skill. 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/yanglaiyang/stock-analysis-skill/main/.claude/skills/stock-analysis/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/yanglaiyang/stock-analysis-skill

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.

agentmods badge for stock-analysis

README.md
[![agentmods](https://agentmods.dev/badge/skills/yanglaiyang/stock-analysis-skill/stock-analysis/github.svg)](https://agentmods.dev/skills/yanglaiyang/stock-analysis-skill/stock-analysis)
Your own site
<a href="https://agentmods.dev/skills/yanglaiyang/stock-analysis-skill/stock-analysis"><img src="https://agentmods.dev/badge/skills/yanglaiyang/stock-analysis-skill/stock-analysis/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.

agentmods 80×15 button for stock-analysis

Your own site · 80×15
<a href="https://agentmods.dev/skills/yanglaiyang/stock-analysis-skill/stock-analysis"><img src="https://agentmods.dev/badge/skills/yanglaiyang/stock-analysis-skill/stock-analysis.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 400 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 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 $0.00038 $0.00400
Opus 5 $0.00019 $0.00200
Sonnet 5 $0.00008 $0.00080
Haiku 4.5 $0.00004 $0.00040

Measured 10d ago against content hash bc75733ee163, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

stock-analysis 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 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.

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/skills/stock-analysis/SKILL.md · 37 lines

What it actually says

You are operating inside the stock-analysis-skill project. When invoked, follow this workflow:

  1. Validate inputs

    • Expect arguments like 公司名, 代码 (e.g., 新华人寿, 601336.SH).
    • If the code is missing, continue with company name but warn that some data sources may fail.
  2. Verify API keys and dependencies

    • Require GEMINI_API_KEY or GOOGLE_API_KEY in env for full online analysis.
    • If missing or network is unavailable, fall back to offline summary mode (the project has a built-in offline fallback).
    • Never print or store API keys. Only report whether a key exists.
  3. Run the analysis

    • Command:
      python3 src/stock_analyzer.py -c "<company, code>"
      
    • The tool generates an HTML report named like <公司名>_分析报告_YYYYMMDD.html.
  4. Validate report output

    • Ensure charts are embedded and visible.
    • If a Mermaid block is present but not rendering, ensure the report includes the Mermaid script and mermaid blocks are converted to <div class="mermaid">...</div>.
  5. Troubleshooting

    • If charts are missing: verify the image placeholders were replaced and embedded.
    • If Mermaid is missing: ensure the report is regenerated after fixes.

Additional resources

  • For supported commands and environment setup, see reference.md.
  • For example invocations and expected output, see examples.md.
Files

What ships with it

2 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.

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 First seen · 37 lines · 38 tokens per session scan A bc75733ee163

Subscribe to this mod's changes

stock-analysis is a skill published in the GitHub repository yanglaiyang/stock-analysis-skill (23 stars, last pushed 7mo ago), licensed MIT. It adds 38 tokens to every session and 400 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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