opencli Reader (Generic Fallback, Read-Only)

Generic fallback for any source opencli supports via its adapter registry (100+ 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.

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.

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 >= 20 (or Bun >= 1.0).

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.

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.

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.

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.

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.

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.