Opencli Reader

opencli Reader (Generic Fallback, Read-Only)

Generic fallback for any source opencli supports via its adapter registry (90+ sites, growing). Use this skill only when no dedicated finance-skill covers the source — the specialized skills (twitter-reader, linkedin-reader, discord-reader, telegram-reader, yc-reader) are always preferred when the request matches one of them.

This skill is read-only. Write commands that opencli exposes (post, like, comment, send, save, upvote, subscribe, follow, delete, reply-dm, etc.) must not be invoked.

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Step 1: Decide Whether to Use This Skill

Only use this skill if the request cannot be handled by a more specific skill.

If the source is not in opencli's registry either, stop and tell the user the request isn't covered — don't fall back to ad-hoc scraping.

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Step 2: Ensure opencli Is Ready

Current environment status:

!`(command -v opencli && opencli doctor 2>&1 | head -5 && echo "READY" || echo "SETUP_NEEDED") 2>/dev/null || echo "NOT_INSTALLED"`

If NOT_INSTALLED:

npm install -g @jackwener/opencli

If SETUP_NEEDED, guide the user through Browser Bridge setup (only required for adapters whose strategy is COOKIE, HEADER, INTERCEPT, or UI — PUBLIC and LOCAL adapters work without a browser):

1. Download the latest opencli-extension-v{version}.zip from the GitHub Releases page 2. Unzip it, open chrome://extensions in Chrome, enable Developer mode 3. Click Load unpacked and select the unzipped folder 4. Make sure Chrome is logged into the target site, then re-run opencli doctor

Requires Node.js >= 21 (or Bun >= 1.0).

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Step 3: Discover the Right Command

Do not guess command names or flags — the registry has 500+ commands and changes weekly. Instead:

# Full registry (grouped by site), machine-readable JSON
opencli list -f json

# Filter to a site
opencli list | grep -i <site>

# Site-level help (all commands + flags)
opencli <site> --help

# Command-level help (positional args + flags + defaults)
opencli <site> <command> --help

The opencli list -f json entry for each command includes:

• site — adapter namespace (e.g., yahoo-finance)
• name — subcommand (e.g., quote)
• strategy — PUBLIC / COOKIE / HEADER / INTERCEPT / UI / LOCAL — tells you if a browser login is needed
• description, args, columns — canonical metadata

Use opencli list -f json as the source of truth. Never paste a site list into the plan from memory; adapters are added every week.

Quick map of the most common finance / research sources

The table below is a shortlist, not exhaustive — always confirm with opencli <site> --help.

For anything not listed, run opencli list -f json and filter.

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Step 4: Check the Adapter's Strategy Before Running

Run opencli list -f json (or opencli <site> <command> --help) and read the strategy field:

If the user doesn't have a login and the adapter's strategy is not PUBLIC / LOCAL, tell them they need to log into the site in Chrome before retrying.

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Step 5: Execute the Command

General pattern

opencli <site> <command> [positional-args] [flags] -f json

Universal flags

Command-specific flags (--limit, --filter, --type, etc.) are not universal — always check opencli <site> <command> --help.

Examples

# Yahoo Finance quote (PUBLIC)
opencli yahoo-finance quote AAPL -f json

# Reddit hot posts in a subreddit (COOKIE or PUBLIC depending on subreddit)
opencli reddit subreddit wallstreetbets --limit 20 -f json
opencli reddit search "SPY options" --limit 15 -f json

# HackerNews top (PUBLIC)
opencli hackernews top --limit 20 -f json

# Eastmoney hot rank (PUBLIC)
opencli eastmoney hot-rank -f json

# Xueqiu hot stocks (PUBLIC or COOKIE)
opencli xueqiu hot-stock -f json
opencli xueqiu stock SH600519 -f json

# Bloomberg markets headlines (COOKIE)
opencli bloomberg markets -f json

# arXiv paper search (PUBLIC)
opencli arxiv search "volatility surface" --limit 10 -f json

# Substack feed
opencli substack feed --limit 20 -f json

# Web page → readable markdown (PUBLIC)
opencli web read "https://example.com/article" -f json

Key rules

1. Always use `opencli <site> <command> --help` before constructing a command you haven't run this session — don't assume flag names. 2. Use `-f json` for programmatic processing. 3. Start with a small `--limit` (10–20) to validate the shape before pulling more. 4. Check `strategy` before running a browser-backed adapter — if the user isn't logged in, a COOKIE / UI adapter will fail. 5. NEVER execute write operations. Common write command names to avoid across adapters: post, reply, comment, like, unlike, upvote, save, subscribe, unsubscribe, follow, unfollow, block, unblock, delete, bookmark, unbookmark, send, create-draft, reply-dm, accept. If you're unsure whether a command is read or write, check the description in opencli list -f json; if it suggests a mutation, skip it.

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Step 6: Handle Failures

If a command returns empty or errors out, the site may have changed its selectors / API. opencli has a built-in self-repair loop:

# Re-run with diagnostic context
OPENCLI_DIAGNOSTIC=1 opencli <site> <command> <args>

This emits a structured RepairContext that identifies the failing adapter's source path. Possible responses:

1. If the user has the opencli-autofix skill installed, tell them to run that skill. 2. If not, suggest they file an issue at https://github.com/jackwener/opencli/issues with the RepairContext output. 3. Don't silently fall back to hand-rolled scraping — that hides the bug from the upstream registry.

Rate limits on the target site can also cause empty results; wait and retry.

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Step 7: Present the Results

1. Summarize the data for the user's actual question, don't just dump the raw JSON. 2. Include source attribution — site name + URL for each item where available. 3. For market data, surface price / % change / volume / market cap and flag anomalies. 4. For news/posts, highlight headlines, timestamps, and key quotes. 5. For research (arXiv, Scholar), include title, authors, abstract, and link. 6. Treat browser sessions as private — never echo CDP endpoints, cookies, or auth tokens.

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Reference Files

• references/discovery.md — How to navigate opencli list, opencli <site> --help, and the JSON schema of registry entries
• references/finance-sources.md — Detailed notes on the finance-heavy adapters (Yahoo Finance, Bloomberg, Eastmoney, Xueqiu, Barchart, Reuters, Reddit, HackerNews) and which commands are read vs write

Read these reference files when you need concrete examples for a specific site, or when the user asks for a capability not covered by one of the dedicated readers.

opencli-reader

Generic read-only fallback skill for fetching data from any site opencli supports but this repo doesn't have a dedicated reader for. Use when none of the specialized readers (twitter-reader, linkedin-reader, discord-reader, telegram-reader, yc-reader) match the request.

What it does

Routes the user's request to the right opencli adapter by discovering commands at runtime (opencli list -f json, opencli <site> --help) instead of relying on a stale hand-maintained list. Covers 90+ sites including:

• Market data — Yahoo Finance, Bloomberg, Reuters, Barchart, Eastmoney, Xueqiu, Sinafinance, TDX, THS
• Community / sentiment — Reddit, HackerNews, Bluesky, Weibo, Jike, Xiaohongshu, Zhihu, 36kr
• Long-form / newsletters — Substack, Medium, generic web read fallback
• Research — arXiv, Google Scholar, Baidu Scholar, Wanfang, CNKI, gov-law, gov-policy
• Podcasts / video — Apple Podcasts, Xiaoyuzhou, Spotify, YouTube, Bilibili
• Commerce (supply-chain research) — Amazon, Taobao, JD, 1688, Coupang
• AI chats — ChatGPT, Gemini, DeepSeek, Grok (read-only operations)

This skill is read-only. Write commands (post, like, comment, send, subscribe, save, upvote, follow, delete, reply-dm, create-draft, etc.) are never invoked.

When to use vs. a specialized skill

Triggers

• "use opencli to read from <site>"
• "grab the frontpage from hackernews"
• "read reddit r/wallstreetbets"
• "fetch Eastmoney hot stocks"
• "pull Xueqiu feed"
• "get Bloomberg markets headlines"
• "search arXiv for <topic>"
• "list my Substack feed"
• "browse Bilibili hot"
• Any mention of a source that opencli covers but this repo doesn't have a dedicated skill for

Platform

Works on Claude Code and other CLI-based agents. Does not work on Claude.ai — the sandbox restricts network access and binaries required by opencli.

Setup

# As part of the plugin (recommended — installs all social readers)
npx plugins add himself65/finance-skills --plugin finance-social-readers

# Or just this skill
npx skills add himself65/finance-skills --skill opencli-reader

See the main README for more installation options.

Prerequisites

• Node.js >= 21 (for npm install -g @jackwener/opencli)
• For browser-backed adapters (COOKIE / HEADER / INTERCEPT / UI strategies):
• Chrome with the Browser Bridge extension loaded unpacked (Developer mode in chrome://extensions)
• Logged into the target site in Chrome

PUBLIC and LOCAL adapters work without Chrome.

Reference files

• references/discovery.md — How to navigate opencli list, <site> --help, and the registry JSON schema; how to distinguish read vs write commands
• references/finance-sources.md — Curated notes on finance-relevant adapters (Yahoo Finance, Bloomberg, Eastmoney, Xueqiu, Barchart, Reuters, Reddit, HackerNews, Substack, arXiv, etc.) with the canonical read vs write split

opencli Command Discovery

When an agent needs to drive a site through opencli, it should treat the registry as the source of truth — not a hand-maintained list. This file explains how to query the registry and what each field means.

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opencli list

Lists every registered command in the local opencli installation.

opencli list                    # Grouped, colorful, table format (for humans)
opencli list -f json            # Flat JSON array (for agents)
opencli list -f yaml            # YAML
opencli list | grep -i reddit   # Filter to a site by keyword

JSON entry schema

Each entry in opencli list -f json has roughly this shape (some fields optional):

{
  "site": "yahoo-finance",
  "name": "quote",
  "aliases": [],
  "description": "Yahoo Finance 股票行情",
  "strategy": "PUBLIC",
  "browser": false,
  "args": [
    { "name": "symbol", "type": "string", "required": true, "positional": true, "help": "Stock ticker (e.g. AAPL, MSFT, TSLA)" }
  ],
  "columns": ["symbol", "name", "price", "change", "changePercent", "open", "high", "low", "volume", "marketCap"]
}

Field meanings:

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opencli <site> --help

Shows all commands registered under a single site along with their one-line descriptions. Useful when you know the site but not the command name:

opencli eastmoney --help
opencli reddit --help
opencli xueqiu --help

opencli <site> <command> --help

Shows positional args, flags, defaults, and examples for a specific command:

opencli yahoo-finance quote --help
opencli reddit subreddit --help
opencli hackernews top --help

Always run this before invoking a command you haven't used before in the current session.

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Read vs write — how to tell

There is no formal readonly: true flag on every registry entry. Distinguish read from write by:

1. Command name heuristics — action verbs that mutate state are writes. Never invoke: post, reply, comment, like, unlike, upvote, downvote, save, unsave, subscribe, unsubscribe, follow, unfollow, block, unblock, delete, bookmark, unbookmark, send, create-draft, reply-dm, accept, hide-reply. 2. `description` field — phrases like "fetch", "read", "get", "list", "search" → read. Phrases like "post", "send", "submit", "create" → write. 3. When uncertain, don't run it. Ask the user or skip.

Reading an adapter's source at clis/<site>/<command>.js in the opencli repo is the definitive answer, but for the purposes of this skill the name + description is usually enough.

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Strategies — what they need

If the user has the site open in Chrome and the Browser Bridge extension loaded, the four auth-requiring strategies work transparently. Otherwise run opencli doctor to diagnose.

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Examples of "discover → run" flow

User: "read the front page of hackernews"

opencli hackernews --help                 # Confirm the command name
opencli hackernews top --help             # Check args and flags
opencli hackernews top --limit 20 -f json

User: "what's Xueqiu saying about BYD?"

opencli xueqiu --help                     # See all Xueqiu commands
opencli xueqiu stock --help               # Check positional arg format
opencli xueqiu stock SZ002594 -f json     # BYD is 002594 on Shenzhen
opencli xueqiu comments SZ002594 --limit 30 -f json

User: "pull the Eastmoney hot rank list"

opencli eastmoney hot-rank --help
opencli eastmoney hot-rank -f json

User: "search arXiv for mean-reversion papers"

opencli arxiv --help
opencli arxiv search "mean reversion" --limit 10 -f json

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Don'ts

• Don't paste a hand-maintained adapter list into the plan — it rots. Run opencli list -f json at task start.
• Don't assume every adapter needs a browser. strategy: PUBLIC doesn't.
• Don't silently fall back from a failing adapter to raw curl or fetch. Re-run with OPENCLI_DIAGNOSTIC=1 to get a RepairContext, then fix the adapter or file an issue.
• Don't invoke any command whose name or description suggests mutation.

Finance-Relevant opencli Adapters

Curated notes on the opencli adapters most useful for financial research, with read commands highlighted and write commands listed as "do not invoke". Treat these as starting points — always run opencli <site> <command> --help to confirm current flags and defaults.

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Market data (US)

yahoo-finance

Strategy: PUBLIC. No login needed.

opencli yahoo-finance quote AAPL -f json
opencli yahoo-finance quote MSFT -f json

Columns: symbol, name, price, change, changePercent, open, high, low, volume, marketCap.

barchart

Check opencli barchart <command> --help for expiry/strike filters.

bloomberg

Likely COOKIE or INTERCEPT — Bloomberg paywalls content for non-subscribers. Run opencli list | grep bloomberg to confirm.

reuters

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Market data (China)

eastmoney (东方财富)

13 finance adapters (opencli 1.7.5, Phase A oracle):

Mostly PUBLIC.

xueqiu (雪球)

Symbol format: exchange prefix + code (e.g., SH600519 = 贵州茅台 on Shanghai, SZ002594 = BYD on Shenzhen, HK00700 = Tencent on HKEX).

sinafinance, tdx, ths

Chinese brokerage / data provider adapters. Run opencli <site> --help to see commands — they change more often than western adapters.

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Community forums / sentiment

reddit

hackernews

All PUBLIC. No login needed.

bluesky

Check opencli bluesky --help — adapter coverage has been expanding.

jike, weibo, xiaohongshu, zhihu, douban, 36kr

Chinese social + research platforms. Usually COOKIE. Run opencli <site> --help.

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Long-form / newsletters

substack

medium

Run opencli medium --help.

web read URL

Renders an arbitrary web page to markdown via opencli's generic reader. Great last-resort fallback when no adapter exists but the page is publicly readable.

opencli web read "https://example.com/long-article" -f json

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Research databases

arxiv

Research-paper search on arXiv. Run opencli arxiv --help for search flags.

google-scholar, baidu-scholar, wanfang, cnki

Academic search adapters. COOKIE for some; PUBLIC for others.

gov-law, gov-policy

Chinese government legal / policy archives.

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Podcasts & video

apple-podcasts, xiaoyuzhou, spotify, youtube

Podcast and video discovery / metadata. Some support full transcript fetching; check --help.

bilibili

hot, video, and more. See opencli bilibili --help.

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Commerce (for supply-chain / competitive research)

amazon, taobao, jd, xianyu, 1688, ke, coupang

Product data, pricing, reviews. Strategies vary. Useful for surfacing competitive or supply-chain signals in equity research.

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AI chat tools (for research automation)

chatgpt, gemini, deepseek, grok, doubao, yuanbao

Browser-based chat adapters. Read operations like history, read, status are safe. Write operations like ask send a prompt — allowed for research automation but count them as writes to an external account; prefer local LLM calls when possible.

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Full list

Run opencli list -f json | jq '.[] | .site' | sort -u for the authoritative list — it's the only source that stays current as adapters are added weekly.