Agent Browser CLI
vercel-labs/agent-browser
Browser automation CLI for AI agents. Use when the user needs to interact with websites, including navigating pages, filling forms, clicking buttons, taking…
Design or refactor a Lit webview's package boundary, Effect service contract, host adapter, lifecycle, registration, or browser bundle.
BSD-3-ClauseAuto-check passed
Install Lit Webview Architecture
$ npx skills add forcedotcom/salesforcedx-vscode --skill lit-webview-architecture -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install forcedotcom/salesforcedx-vscode lit-webview-architecture --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/lit-webview-architecture .claude/skills/lit-webview-architecture && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "lit-webview-architecture" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/lit-webview-architecture into .claude/skills/lit-webview-architecture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lit-webview-architecture", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/lit-webview-architectureType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add forcedotcom/salesforcedx-vscode --skill lit-webview-architecture -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install forcedotcom/salesforcedx-vscode lit-webview-architecture --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/lit-webview-architecture .agents/skills/lit-webview-architecture && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "lit-webview-architecture" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/lit-webview-architecture into .agents/skills/lit-webview-architecture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lit-webview-architecture", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add forcedotcom/salesforcedx-vscode --skill lit-webview-architecture -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install forcedotcom/salesforcedx-vscode lit-webview-architecture --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/lit-webview-architecture .cursor/skills/lit-webview-architecture && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "lit-webview-architecture" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/lit-webview-architecture into .cursor/skills/lit-webview-architecture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lit-webview-architecture", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/forcedotcom/salesforcedx-vscode.git --path .claude/skills/lit-webview-architecture--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add forcedotcom/salesforcedx-vscode --skill lit-webview-architecture -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install forcedotcom/salesforcedx-vscode lit-webview-architecture --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/lit-webview-architecture .gemini/skills/lit-webview-architecture && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "lit-webview-architecture" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/lit-webview-architecture into .gemini/skills/lit-webview-architecture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lit-webview-architecture", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install forcedotcom/salesforcedx-vscode lit-webview-architectureInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add forcedotcom/salesforcedx-vscode --skill lit-webview-architecture -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/lit-webview-architecture .github/skills/lit-webview-architecture && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "lit-webview-architecture" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/lit-webview-architecture into .github/skills/lit-webview-architecture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lit-webview-architecture", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add forcedotcom/salesforcedx-vscode --skill lit-webview-architecture -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install forcedotcom/salesforcedx-vscode lit-webview-architecture --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/lit-webview-architecture .opencode/skills/lit-webview-architecture && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "lit-webview-architecture" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/lit-webview-architecture into .opencode/skills/lit-webview-architecture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lit-webview-architecture", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
lit-webview-architecture- GitHub stars
- 1k
- Token cost
- ~734 tokens
- SKILL.md length
- 294 words
- Files
- 1
- Skills in repo
- 37
- Repo updated
- First seen
- Licence
- BSD-3-Clause
At a glance
Design or refactor a Lit webview's package boundary, Effect service contract, host adapter, lifecycle, registration, or browser bundle.
- VS Code webviews that separate browser-safe UI from extension-host APIs and message protocols
- SKILL.md covers Browser-safe contract, Effect lifecycle and Registration and bundling
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Lit Webview Architecture is an agent skill from forcedotcom/salesforcedx-vscode. Design or refactor a Lit webview's package boundary, Effect service contract, host adapter, lifecycle, registration, or browser bundle. Use for VS Code webviews that separate browser-safe UI from extension-host APIs and message protocols.
Its SKILL.md is about 730 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It works with Visual Studio Code. The repository describes itself as: Salesforce Extensions for VS Code. The licence is BSD-3-Clause.
When your agent uses it
- VS Code webviews that separate browser-safe UI from extension-host APIs and message protocols
Example prompts
- “/lit-webview-architecture”
What it can do on your machine
Read from SKILL.md and the folder at commit c8d281a. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Lit Webview Architecture loads about 734 tokens when it runs. Until then it costs about 66 tokens; SKILL.md has 294 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from forcedotcom/salesforcedx-vscode at commit c8d281a, republished under its BSD-3-Clause licence (© forcedotcom). 294 words, ~734 tokens.
Download SKILL.mdSave it as
.claude/skills/lit-webview-architecture/SKILL.md (or your agent's skills folder).- name
- lit-webview-architecture
- description
- Design or refactor a Lit webview's package boundary, Effect service contract, host adapter, lifecycle, registration, or browser bundle. Use for VS Code webviews that separate browser-safe UI from extension-host APIs and message protocols.
- review
- never
Lit webview architecture
Boundary: UI owns presentation, browser-safe state/actions, and lifecycle coordination; host owns VS Code APIs, transport, metadata/network authorities, and localization.
Browser-safe contract
- Immutable view state, UI actions, and typed errors from Effect Schemas. Tagged/literal unions instead of loose primitives, enums, or duplicated constants when invalid states matter.
- Directional host-to-UI and UI-to-host message schemas. Handler variant added with its behavior; exhaustive
Match; no opposite-direction placeholder arms. - Unknown data validated at entry. DOM
CustomEvent: structuraltype/detailguard, then Schema validation ofdetail; inherited DOM accessors do not form a plain schema struct. - Required localized labels injected by the host; no defaults hiding missing localization.
- No VS Code, JSforce, extension service, or extension-message imports in the browser-safe package. Host data normalized and validated before UI state.
- Only subpaths with known consumers exported; no root/testing barrels. Type-only dependencies in
devDependencieswithimport type.
Effect lifecycle
- 1 service contract: initial state, state stream, typed action dispatch. Extension-owned live layer plus deterministic test layers.
- 1 composition-root-owned scoped fiber per mounted webview: controller, queues, subscriptions, DOM listeners, finalizers.
- Listeners/subscriptions acquired and released as scoped resources. Disconnect interrupts and awaits the session fiber.
- Fiber-identity guard on finalizer cleanup; an old disconnect cannot clear a newer rapid reconnection.
- Components only render state and dispatch intent—no runtimes, scattered
Effect.runFork/Effect.runPromise, or host calls.
Registration and bundling
- Explicit host-called custom-element registration; every
customElements.defineguarded bycustomElements.get; no registration import side effects. - New entries built with shared browser esbuild config. IIFE retained while HTML loads a classic deferred script; ESM requires matching script/resource-rewrite changes.
- Non-published UI workspaces marked
privateand excluded from publication/versioning. Contract tests scan source and bundles for host imports and Effect execution in presentation code. - Compile/bundle/test order expressed in Wireit; browser tests consume the intended emitted application.
Examples: packages/soql-builder-ui/src/application.ts, packages/soql-builder-ui/src/register.ts, packages/soql-builder-ui/test/package-contract.test.mjs, packages/salesforcedx-vscode-soql/src/soql-builder-ui/lit/.
© forcedotcom, BSD-3-Clause. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in .claude/skills/lit-webview-architecture of forcedotcom/salesforcedx-vscode.
Open the folder on GitHubat commit c8d281a
Compare with similar skills
Lit Webview Architecture next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Lit Webview Architecture this skillforcedotcom/salesforcedx-vscode | 1k | — | ~734 | Automated safety check: Pass | BSD-3-Clause | |
| Agent Browser CLIvercel-labs/agent-browser | 44k | 24 repos | ~864 | Automated safety check: Pass | Apache-2.0 | |
| Electron App Automationvercel-labs/agent-browser | 44k | 5 repos | ~1.7k | Automated safety check: Pass | Apache-2.0 | |
| Microsoft Skill CreatorMicrosoftDocs/mcp | 1.9k | 3 repos | ~2.1k | Automated safety check: Pass | CC-BY-4.0 | |
| Evals Contextzgsm-ai/costrict | 4.5k | 1 repos | ~1.9k | Automated safety check: Pass | Apache-2.0 | |
| Ketch1broseidon/ketch | 702 | 1 repos | ~3.9k | Automated safety check: Pass | MIT |
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Questions about Lit Webview Architecture
What does Lit Webview Architecture do?
Design or refactor a Lit webview's package boundary, Effect service contract, host adapter, lifecycle, registration, or browser bundle. Lit Webview Architecture is an agent skill from forcedotcom/salesforcedx-vscode. Design or refactor a Lit webview's package boundary, Effect service contract, host adapter, lifecycle, registration, or browser bundle.
When should I use Lit Webview Architecture?
Lit Webview Architecture fits situations like: VS Code webviews that separate browser-safe UI from extension-host APIs and message protocols.
How do I install Lit Webview Architecture in Claude Code?
Run `npx skills add forcedotcom/salesforcedx-vscode --skill lit-webview-architecture -a claude-code`. Or copy the skill folder (.claude/skills/lit-webview-architecture in forcedotcom/salesforcedx-vscode) into .claude/skills/lit-webview-architecture in your project. Claude Code loads it when a task matches its description.
How do I install Lit Webview Architecture in Codex?
Run `npx skills add forcedotcom/salesforcedx-vscode --skill lit-webview-architecture -a codex`. Or copy the skill folder (.claude/skills/lit-webview-architecture in forcedotcom/salesforcedx-vscode) into .agents/skills/lit-webview-architecture in your project. Codex loads it when a task matches its description.
Can I use Lit Webview Architecture in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add forcedotcom/salesforcedx-vscode --skill lit-webview-architecture -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/lit-webview-architecture, .gemini/skills/lit-webview-architecture, .github/skills/lit-webview-architecture and .opencode/skills/lit-webview-architecture in your project.
What does Lit Webview Architecture need to run?
SKILL.md names no scripts, command-line tools or credentials: Lit Webview Architecture is instructions for the agent only.
Does Lit Webview Architecture access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Lit Webview Architecture safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Lit Webview Architecture use?
Lit Webview Architecture is published under the BSD-3-Clause licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Lit Webview Architecture use?
About 734 tokens (SKILL.md is roughly 2.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Lit Webview Architecture?
Skills that share tags, products or a category with Lit Webview Architecture: Agent Browser CLI (vercel-labs/agent-browser, 44k stars), Electron App Automation (vercel-labs/agent-browser, 44k stars), Microsoft Skill Creator (MicrosoftDocs/mcp, 1.9k stars) and Evals Context (zgsm-ai/costrict, 4.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Lit Webview Architecture?
forcedotcom (a GitHub organization) maintains it in forcedotcom/salesforcedx-vscode, which has 1,035 GitHub stars. The repository holds 37 skills in this directory. The repository was last updated on October 9, 2026.
Source: forcedotcom/salesforcedx-vscode on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.