
OpenCLI Usage
FreeYour guide to mastering OpenCLI commands.
Free · Opens the source repo
What OpenCLI Usage does
OpenCLI Usage serves as the foundational skill for anyone looking to effectively utilize the OpenCLI framework. This skill provides a comprehensive overview of what OpenCLI can accomplish, including how to discover available commands and which specialized skills to load for specific tasks. By using OpenCLI, developers can interact with websites, Electron apps, or external command-line interfaces in a consistent manner without the need for screen scraping. This uniformity allows for a more efficient workflow when automating tasks across different platforms.
The skill is designed to help users understand the three main pillars of OpenCLI: adapter commands, browser driving, and external CLI passthrough. Adapter commands allow users to execute site-specific commands seamlessly, while browser driving provides a set of subcommands for ad-hoc interactions when no adapter is available. Additionally, the ability to bind to a current Chrome tab simplifies the process of working with authenticated sessions. This makes OpenCLI particularly useful for developers and designers who need to automate interactions with web applications or manage multiple tools from a single command interface.
To get started, users can install OpenCLI globally or run it from source. The included opencli doctor command helps diagnose issues with the browser bridge, ensuring that users can quickly troubleshoot connectivity problems. The skill also emphasizes the importance of discovering commands dynamically through the opencli list command, which provides a real-time view of available commands and their configurations. This dynamic discovery is crucial for adapting to the rapidly changing landscape of web applications.
Overall, OpenCLI Usage is an essential skill for anyone looking to streamline their development processes and automate interactions with various platforms. It is particularly beneficial for those who frequently work with web-based tools and require a reliable method for executing commands across different environments.
When to use it
Use this skill when starting an OpenCLI session to understand available commands and how to use them effectively.
When not to use it
This skill is not suitable for users who are looking for specific command implementations without first understanding the broader context of OpenCLI.
What you can build with it
Automating Web Interactions
Use OpenCLI to automate repetitive tasks on web applications, such as form submissions or data extraction.
Integrating External CLIs
Leverage OpenCLI to manage commands for external tools like GitHub or Docker from a single command interface.
Debugging Browser Sessions
Utilize the `opencli doctor` command to troubleshoot and verify the setup of your browser bridge before executing commands.
How to install OpenCLI Usage
View source1. Install with the skills CLI
npx skills add jackwener/opencli/opencli-usage --agent claude-code2. Or install it manually
Download the skill folder and drop it into ~/.claude/skills/ for all projects, or .claude/skills/ to scope it to one repo. Restart Claude Code so it picks up the new skill.
Anthropic's agentic coding CLI, and the reference implementation of Agent Skills. Drop a skill folder into ~/.claude/skills and Claude Code loads it automatically whenever a task matches the skill's description. Claude Code docs
Inside SKILL.md
Written by jackweneropencli-usage
OpenCLI turns any website, Electron desktop app, or external CLI into a uniform opencli <site> <command> surface that agents can drive without screen-scraping. This skill is the orientation layer — once you know what you want to do, load one of the specialized skills below.
The three pillars
- Adapter commands —
opencli <site> <command> [...]. Built-in adapters live inclis/, user adapters in~/.opencli/clis/. Each is backed by a strategy (PUBLIC | COOKIE | INTERCEPT | UI | LOCAL) that tells you whether a Chrome session is needed. - Browser driving —
opencli browser *subcommands (open,state,click,type,select,find,extract,network, …) for ad-hoc interaction and scraping when no adapter covers the task. Seeopencli-browser. - Current-tab binding —
opencli browser <session> bindattaches the Chrome tab the user already opened/logged into to that browser session. Follow-up commands useopencli browser <session> .... Seeopencli-browserbefore using it; bound sessions still block tab mutation. - External CLI passthrough —
opencli gh,opencli docker,opencli vercel, etc. Managed viaopencli external install <name>(auto-install fromexternal-clis.yaml) oropencli external register <name>(bring your own).
Install
# npm global
npm install -g @jackwener/opencli # binary: opencli, requires Node >= 21
opencli doctor # run before browser-dependent work (see below)
# From source
git clone git@github.com:jackwener/OpenCLI.git
cd OpenCLI && npm install
npx tsx src/main.ts <command> # same surface, no global install
opencli doctor prints a structured DoctorReport — daemon status, extension connection, version checks, and a live browser connectivity probe. Scope is narrow: it diagnoses the browser bridge (daemon + extension + Chrome wiring). PUBLIC / LOCAL adapters, opencli list, validate, verify, plugin commands, and external-CLI passthrough don't need it to be green — only COOKIE / INTERCEPT / UI adapters and the opencli browser * subcommands do. Flag: -v (verbose).
Prerequisites by command type
Strategy tag on opencli list | What it needs |
|---|---|
PUBLIC | Nothing — pure HTTP, no browser. |
COOKIE | Chrome logged into the target site + OpenCLI extension installed from the Chrome Web Store. Command captures the credential from your live session — no re-login. |
INTERCEPT | Same as COOKIE, plus opencli opens an automation window to capture a signed request. |
UI | Same as COOKIE, full DOM interaction. |
LOCAL | No browser; talks to a local/dev endpoint. |
Electron desktop apps (cursor, codex, chatwise, discord-app, doubao-app, antigravity, chatgpt-app) route through CDP against the running app — same cookie-less flow as a logged-in browser. Make sure the app is running before invoking.
Discover what's installed — don't read this file, run a command
opencli list # table, grouped by site
opencli list -f json # machine-readable; pipe to jq or your agent
opencli list | grep -i twitter # find commands for a specific site
opencli <site> --help # see that site's commands + flags
opencli <site> <command> --help # see positional args and command-specific flags
Do not hard-code adapter lists — there are 100+ sites and the count moves every week. opencli list -f json is the source of truth; it emits one entry per command with {site, name, aliases, description, strategy, browser, args, columns, ...}. For an agent, that is always better than grepping a doc.
Before falling back to raw opencli browser commands on high-change authenticated sites, check whether a site adapter already exposes the workflow. For example, ChatGPT web has higher-level commands for conversation reads and Deep Research result extraction; discover the current surface with opencli chatgpt --help or opencli list -f json.
Universal flags (work on every adapter command)
| flag | effect |
|---|---|
-f, --format <fmt> | table (default in TTY) · yaml (default in non-TTY) · json · plain · md · csv. Pass explicitly when you want a specific shape; agents almost always want -f json. |
-v, --verbose | Debug logs + stack traces on failure; also sets OPENCLI_VERBOSE=1 for the process. |
Command-specific flags (--limit, --tab, --filter, …) are not universal — consult <site> <command> --help.
Output formats
json— pretty-printed, 2-space indent. Default choice for agents.plain— prints a single primary field for chat-style commands (response/content/text/value). Useful for piping to another tool.yaml— fallback when output is not a TTY and-fis not explicit.table— color-coded, site-grouped; meant for humans.md,csv— straightforward tabular dumps.
A few commands override the default via cmd.defaultFormat (e.g. chat commands default to plain), so don't assume without reading --help.
Environment variables
| variable | default | purpose |
|---|---|---|
OPENCLI_BROWSER_CONNECT_TIMEOUT | 45 | Seconds to wait for the browser bridge. |
OPENCLI_BROWSER_COMMAND_TIMEOUT | 60 | Per-command timeout. |
OPENCLI_CDP_ENDPOINT | — | Manual CDP endpoint override (dev / remote Chrome / Electron). |
OPENCLI_CACHE_DIR | ~/.opencli/cache | Network capture + browser-state cache. |
OPENCLI_WINDOW | command-specific | foreground or background browser window mode. |
OPENCLI_VERBOSE | false | Verbose logging (also triggered by -v). |
Self-repair
When an adapter command fails because the site changed (selectors drifted, API rotated, response schema shifted), re-run with --trace retain-on-failure. The error envelope includes a trace block pointing at summary.md; patch only the adapterSourcePath from that summary and retry. Max 3 repair rounds. The full flow is in opencli-autofix.
Writing your own adapter
Two-path storage:
- Private:
~/.opencli/clis/<site>/<command>.js— no build step, hot-available, not visible in the public package. - Public / PR:
clis/<site>/<command>.js— for upstream contribution; requires build.
Scaffolding & verification:
opencli browser init <site>/<command> # generates a skeleton
opencli validate [target] # semantic checks on the loaded registry (description, domain, pipeline step names, func|pipeline|_lazy presence, arg duplicates) — no network, no browser
opencli verify [target] [--smoke] # run the command with synthetic args
opencli browser verify <site>/<command> # end-to-end smoke inside the bridge
Adapters import only @jackwener/opencli/registry and @jackwener/opencli/errors. columns must align 1:1 (in name and order) with keys of the object returned by func. For the full workflow see opencli-adapter-author.
Plugins
Plugins are third-party extensions pulled from git, separate from the main adapter registry:
opencli plugin install github:user/repo # install
opencli plugin list [-f json] # see installed
opencli plugin update [name] | --all # keep current
opencli plugin uninstall <name>
opencli plugin create <name> # scaffold a new plugin
External CLI passthrough
Wraps external command-line tools so you can discover + invoke them through the same opencli … entrypoint:
opencli external install gh # auto-install via brew/apt/npm per external-clis.yaml
opencli external register my-tool \
--binary my-tool \
--install "npm i -g my-tool" \
--desc "My internal CLI"
opencli external list
opencli gh pr list --limit 5 # passthrough; stdio is inherited, exit code propagated
opencli docker ps
Built-in entries live in src/external-clis.yaml; user overrides and additions in ~/.opencli/external-clis.yaml. Commonly shipped: gh, docker, vercel, lark-cli, longbridge, dws, wecom-cli, obsidian, ntn, tg(tg-cli), discord(discord-cli), wx(wx-cli).
Some official CLIs use shell-script installers instead of a shell-free package-manager command. Entries without an install config, such as ntn, must be installed manually from their homepage before passthrough use.
Shell completion
opencli completion bash # also: zsh, fish
# -> script on stdout; source or save per your shell's convention
Where to go next
| If you're about to… | Load this skill |
|---|---|
| Drive a live browser ad-hoc (no adapter available, or prototyping) | opencli-browser |
| Write a new adapter, or add a command to an existing site | opencli-adapter-author |
| Fix a broken adapter after a command failure | opencli-autofix |
| Route a search / lookup / research request to the right adapter | smart-search |
Commands that used to exist
The following were removed in the PR #1094 consolidation — don't try to invoke them:
opencli explore <url>— superseded byopencli browser network+opencli browser findfor live API discovery, and by theopencli-adapter-authorworkflow for capture.opencli record <url>— removed; manual capture now lives inopencli browser network --detail.opencli web read/opencli desktop *as top-level groups — folded into their respective adapters (opencli web readstill exists as thewebadapter'sreadcommand, but there is no standaloneweb/desktoptop-level group command).
Don't
- Don't paste this skill's command list into your plan; it will rot. Call
opencli list -f jsonat the start of a task instead. - Don't assume every adapter needs a browser — strategy
PUBLICandLOCALdon't. Check thestrategyfield. - Don't silently fall back from a failing adapter to a hand-rolled
fetch—--trace retain-on-failuregives you the browser evidence and adapter source path. Do that first.
Frequently asked questions about OpenCLI Usage
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