Canvas Capture Extension
remotion-dev/remotion
Rebuild, install, and reload the private Remotion Canvas Capture unpacked Chrome extension.
Create or change a Voyager declarative plugin, site adapter, or native primitive.
$ npx skills add voyager-crew/voyager --skill create-voyager-plugin -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install voyager-crew/voyager create-voyager-plugin --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/voyager-crew/voyager.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/create-voyager-plugin .claude/skills/create-voyager-plugin && 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 "create-voyager-plugin" agent skill from https://github.com/voyager-crew/voyager/tree/main/.agents/skills/create-voyager-plugin into .claude/skills/create-voyager-plugin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "create-voyager-plugin", 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/voyager-crew/voyager/tree/main/.agents/skills/create-voyager-pluginType 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 voyager-crew/voyager --skill create-voyager-plugin -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install voyager-crew/voyager create-voyager-plugin --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/voyager-crew/voyager.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/create-voyager-plugin .agents/skills/create-voyager-plugin && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "create-voyager-plugin" agent skill from https://github.com/voyager-crew/voyager/tree/main/.agents/skills/create-voyager-plugin into .agents/skills/create-voyager-plugin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "create-voyager-plugin", 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 voyager-crew/voyager --skill create-voyager-plugin -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install voyager-crew/voyager create-voyager-plugin --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/voyager-crew/voyager.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/create-voyager-plugin .cursor/skills/create-voyager-plugin && 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 "create-voyager-plugin" agent skill from https://github.com/voyager-crew/voyager/tree/main/.agents/skills/create-voyager-plugin into .cursor/skills/create-voyager-plugin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "create-voyager-plugin", 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/voyager-crew/voyager.git --path .agents/skills/create-voyager-plugin--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 voyager-crew/voyager --skill create-voyager-plugin -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install voyager-crew/voyager create-voyager-plugin --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/voyager-crew/voyager.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/create-voyager-plugin .gemini/skills/create-voyager-plugin && 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 "create-voyager-plugin" agent skill from https://github.com/voyager-crew/voyager/tree/main/.agents/skills/create-voyager-plugin into .gemini/skills/create-voyager-plugin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "create-voyager-plugin", 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 voyager-crew/voyager create-voyager-pluginInstalls 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 voyager-crew/voyager --skill create-voyager-plugin -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/voyager-crew/voyager.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/create-voyager-plugin .github/skills/create-voyager-plugin && 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 "create-voyager-plugin" agent skill from https://github.com/voyager-crew/voyager/tree/main/.agents/skills/create-voyager-plugin into .github/skills/create-voyager-plugin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "create-voyager-plugin", 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 voyager-crew/voyager --skill create-voyager-plugin -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install voyager-crew/voyager create-voyager-plugin --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/voyager-crew/voyager.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/create-voyager-plugin .opencode/skills/create-voyager-plugin && 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 "create-voyager-plugin" agent skill from https://github.com/voyager-crew/voyager/tree/main/.agents/skills/create-voyager-plugin into .opencode/skills/create-voyager-plugin/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "create-voyager-plugin", 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.
create-voyager-pluginCreate or change a Voyager declarative plugin, site adapter, or native primitive.
Create Voyager Plugin is an agent skill from voyager-crew/voyager. Create or change a Voyager declarative plugin, site adapter, or native primitive.
Its SKILL.md is about 2.7k tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `references/declarative.md`, `references/primitive.md` and `references/site-adapter.md`).
It works with Chrome Extensions. The repository describes itself as: Enhancement suite for Gemini, AI Studio, Claude, ChatGPT & DeepSeek — plus a prompt manager for any website, DeepSeek Harness included. / 面向 Gemini、AI Studio、Claude、ChatGPT 与… The licence is GPL-3.0.
Read from SKILL.md and the folder at commit dfb08a6. It shows what the files ask for, not the result of running them.
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.
Shell commands in SKILL.md call:
bunFrom the folder's file list and the shell code blocks in SKILL.md.
Hosts in commands or code, which the agent is likely to contact:
gemini.google.comFrom URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Create Voyager Plugin loads about 2.7k tokens when it runs, and up to ~4.6k if it reads all its reference files. Until then it costs about 26 tokens; SKILL.md has 1,277 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.
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.
The full file from voyager-crew/voyager at commit dfb08a6, republished under its GPL-3.0 licence (© voyager-crew). 1,277 words, ~2,667 tokens.
.claude/skills/create-voyager-plugin/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.Read only the matching implementation reference. Paths are relative to src/features/plugins/.
| Change | Reference | Distribution |
|---|---|---|
| CSS/JSON plugin using DOM ops or an existing primitive | Declarative plugin | catalog/sites/<site>/plugins/<id>/; bundled and remote |
| Site selectors, theme, URL matching or a new site | Site adapter | catalog/sites/<site>/site.json; existing-site updates travel remotely |
| Behavior needing events, state or generated DOM | Native primitive | verbs/; packaged executable code, requires an extension release |
A new site also requires host permission and content-script registration in an extension release. A primitive needs a declarative plugin that invokes it, so read that reference too when adding the caller.
New features follow .github/CONTRIBUTING.md; a new primitive or site requires explicit maintainer approval of the approach. Reuse a direct maintainer instruction in the current task as approval; loading this skill grants none. A selector fix within an existing site's approved scope needs no new feature approval.
For architecture or distribution changes, read src/features/plugins/README.md and .github/docs/PLUGIN_DISTRIBUTION_PLAN.md. PR preparation uses voyager-contribute; live checks use verify-in-browser (Safari loading uses update-safari-extension).
gv- prefixed; plugin-scoped classes are
gv-plugin-<site>-<id>. Nothing leaks to the host page unscoped.@import, no
image-set() / image() / cross-fade() / src(), url() only with a
#fragment or a raster data: URI (image/png, jpeg, gif, webp,
avif, bmp, icon; never data:image/svg+xml, in any encoding, since an SVG
filter resource can load images), and no string that starts with an external URL
(--u:"//…"), in the sheet, a setStyle value or a style attribute.
validateStyleCss rejects the rest.setAttribute names are an allowlist: data-*, aria-*, title, role,
lang, dir, hidden, tabindex, draggable, spellcheck, translate,
style. Values may not contain an external URL. Use addClass for classes.{ "kind": "semantic", "key": "userTurn" }. Raw selectors are for what the
vocabulary cannot name, and they are the first thing to break on a redesign.matches stays inside its site's matches (D18).
catalog:build fails otherwise. Patterns are read as Chrome reads them:
*.example.com needs a subdomain (the apex host is outside it) and *://
means http or https only; the build and the runtime agree, so a pattern that
passes the build also resolves a site.conversationIdPattern, in site.json or as a turnNavigator param, is a
plain anchored capture such as ^/c/([^/?#]+): no lookarounds or
backreferences, no repeated group that holds a quantifier or |, at most
eight quantifiers and 200 characters. It runs on the page's main thread
against every URL, so the gate (sites/safeRegex.ts) refuses anything that
can backtrack.requires.handlers lists every primitive the plugin invokes, and engine's
minimum is at least each primitive's sinceEngine. That ordering is the
point: an old build then says "update Voyager" (needs-engine) instead of
needs-handler, which is left meaning a real configuration mistake.name / description; the other
nine sit under i18n.<locale> with name, description, changelog when
set, and a label for every setting.marketplace.json gets the entry, and the plugin directory gets a README.md
next to the manifest. A test enforces both.params is configuration, not instructions (plan §5, C1): no conditions, no
ordering, no code. A selector-valued parameter such as yieldWhen is still
data, so do not reject one on its name.site.json's theme block
records the host, light and dark selectors. Check both. That block is the
only place a host's own dark-mode dialect is ever named:
pages/content/platformTheme/scheme.ts resolves it once and stamps
html[data-gv-scheme='light'|'dark'] plus html[data-gv-platform='<siteId>'].contentStyle.css — with
html[data-gv-scheme='…'], never with the host's class (html.dark,
body.dark-theme, :root:not(.dark)). Get theme right and a new site
inherits every existing Voyager surface with no theme CSS of its own.
contentStyleTheme.test.ts fails on a host dialect that slips back in.brandColor in site.json (or a plugin's theme.brand)
becomes --gv-pm-brand, --gv-pm-brand-fg and --gv-pm-brand-h on the root.
Voyager UI that should carry the site's colour reads
oklch(L C var(--gv-pm-brand-h, var(--gv-pm-brand-h-default))), never a
literal — a hard-coded hue is how the Vim HUD stayed Gemini green on DeepSeek.
A rule for one platform only keys off html[data-gv-platform='<id>'];
gv-platform-themed means "some brand applies" and three sites share it.dist_* or docs/public/catalog; catalog:build writes the
published catalog.A declarative plugin for personal use needs no PR, catalog entry or release. Write plugin.json and its .css as the declarative reference describes, then in the popup open Local plugins (on Claude, ChatGPT and DeepSeek it is on the plugin page; on Gemini and AI Studio it is the last entry of the settings) and use Import files (manifest plus its .css files) or Paste JSON (CSS inlined).
The id is stored as local.<id>. Local plugins never replace an official id, are merged last and are outside the remote kill switch.
The gate is the remote catalog's (validateManifest, CSS and rendered-sink guards) plus: tier: "declarative" only; native ops only for shipped primitives, with params that fit verbs/contracts.ts and engine at or above their sinceEngine; and matches inside an existing plugin platform (Claude, ChatGPT, DeepSeek) or a native surface (Gemini, AI Studio). No plugin-supplied JS, ever.
Gemini and AI Studio accept only local plugins (official plugins and the online catalog never target them). Semantic keys resolve through the native adapters (userTurn, assistantTurn, composer, sidebar); theme is rejected there because those pages keep Voyager's accent, and native ops are rejected because the timeline, formula copy and Vim already run there natively: CSS and reversible DOM ops only. No permission prompt: the manifest already injects these hosts. The page still makes zero catalog requests. Example that tightens your own turns on Gemini:
{
"id": "me.gemini-compact-turns",
"name": "Compact Gemini turns",
"version": "1.0.0",
"description": "Tighter spacing between my messages",
"author": "me",
"category": "readability",
"license": "MIT",
"engine": ">=1.0.0",
"tier": "declarative",
"matches": ["https://gemini.google.com/*"],
"contributes": {
"styles": [{ "css": ".gv-plugin-compact-turn{margin-block:4px!important}" }],
"domOps": [
{
"op": "addClass",
"target": { "kind": "semantic", "key": "userTurn" },
"className": "gv-plugin-compact-turn"
}
]
}
}A rejected import lists path: message and keeps the installed version. An accepted import lands disabled with an inspect view of its sites, CSS size, page changes, primitives and settings; enable it from the plugin list. To update, edit and re-import: the new version also lands disabled, so re-inspect and turn it back on. A plugin with a native op that was running keeps its mounted version until the page reloads (D7).
Export downloads the manifest with CSS inlined; that file is also the starting point for an official contribution, after renaming the id out of local. and moving it into catalog/sites/<site>/plugins/<id>/.
Manifests stay on the device (no Drive backup yet); export to keep a copy.
Implementation: src/features/plugins/local/ and the "Write your own plugin locally" section of src/features/plugins/README.md.
Use the selected path's validators and focused tests during implementation. Before a code PR, run bun run verify:pr on the final tree per AGENTS.md; reuse covered results for unchanged inputs. Run catalog:build for catalog/contract changes and inspect its generated diff. Keep the evidence tied to the final changed files; later relevant edits invalidate it.
The PR needs:
plugin:check output and the target selector match count, measured in the page (for example document.querySelectorAll('<selector>').length). For pure CSS without countable targets, use visible before/after evidence.Confirm the intended extension/catalog version is loaded before collecting evidence. A plugin target count of zero while the adapter's userTurn matches is the no-effect failure (runtime/healthMonitor.ts, design D12); investigate missing selectors. Pure-CSS plugins are not tracked by this counter.
Complete when the selected path's requirements pass and a reviewer can see the real behavior in both themes. Apply the affected-browser requirements in browser-testing.md when preparing a contribution. If coverage is unavailable, report the gap and owner; it remains pending.
© voyager-crew, GPL-3.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
SKILL.md and 3 other files (references) in .agents/skills/create-voyager-plugin of voyager-crew/voyager.
Open the folder on GitHubat commit dfb08a6
Create Voyager Plugin 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 |
|---|---|---|---|---|---|---|
| Create Voyager Plugin this skillvoyager-crew/voyager | 20k | — | ~2.7k | Automated safety check: Pass | GPL-3.0 | |
| Canvas Capture Extensionremotion-dev/remotion | 63k | — | ~907 | Automated safety check: Pass | Custom licence | |
| Adversarial Reviewmengxi-ream/read-frog | 10k | 1 repos | ~905 | Automated safety check: Pass | GPL-3.0 | |
| Record Extension Demomengxi-ream/read-frog | 10k | — | ~2.8k | Automated safety check: Pass | GPL-3.0 | |
| Geoflowyaojingang/GEOFlow | 3.8k | — | ~722 | Automated safety check: Pass | AGPL-3.0 | |
| Wxt Browser Extensionsvantezzen/skip-silence | 469 | 2 repos | ~1.9k | Automated safety check: Pass | MIT |
remotion-dev/remotion
Rebuild, install, and reload the private Remotion Canvas Capture unpacked Chrome extension.
mengxi-ream/read-frog
Adversarial code review using cross-model approach. An agent skill from mengxi-ream/read-frog.
mengxi-ream/read-frog
Record polished, evidence-backed demos of the Read Frog extension as MP4 (and optional GIF) by driving real Chrome with the built extension, following captioned scene scripts, asserting extension…
yaojingang/GEOFlow
Operate/develop GEOFlow CLI/Laravel/admin/API, topics/专题 and topic tasks, theme libraries/replication, sites/leads/Agent, channel sync and legacy yao-geoflow-cli/design/template migration.
vantezzen/skip-silence
WXT browser extension performance optimization guidelines. An agent skill from vantezzen/skip-silence.
molvqingtai/WebChat
Create professional architecture, workflow, sequence, data-flow, and lifecycle/state diagrams as standalone HTML files with SVG graphics, a built-in dark/light theme toggle, and one-click export to…
voyager-crew/voyager
Prepare, publish, or recover a Voyager release. An agent skill from voyager-crew/voyager.
voyager-crew/voyager
Prepare Voyager commits, pull requests, and contribution evidence, or claim an issue and check review readiness.
voyager-crew/voyager
Build, reload, and verify Voyager in Safari for web-extension changes, native integration, or signed-app testing while preserving installed apps and extension data.
voyager-crew/voyager
Verify Voyager content-script or injected-CSS behavior in a live browser, including stale-build diagnosis.
voyager-crew/voyager
Investigate or fix a referenced Voyager GitHub issue, within the requested delivery scope.
voyager-crew/voyager
Write or rewrite a Voyager pull request description. An agent skill from voyager-crew/voyager.
Works with
Create or change a Voyager declarative plugin, site adapter, or native primitive. Create Voyager Plugin is an agent skill from voyager-crew/voyager. Create or change a Voyager declarative plugin, site adapter, or native primitive.
Run `npx skills add voyager-crew/voyager --skill create-voyager-plugin -a claude-code`. Or copy the skill folder (.agents/skills/create-voyager-plugin in voyager-crew/voyager) into .claude/skills/create-voyager-plugin in your project. Claude Code loads it when a task matches its description.
Run `npx skills add voyager-crew/voyager --skill create-voyager-plugin -a codex`. Or copy the skill folder (.agents/skills/create-voyager-plugin in voyager-crew/voyager) into .agents/skills/create-voyager-plugin in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add voyager-crew/voyager --skill create-voyager-plugin -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/create-voyager-plugin, .gemini/skills/create-voyager-plugin, .github/skills/create-voyager-plugin and .opencode/skills/create-voyager-plugin in your project.
Going by SKILL.md and its folder, Create Voyager Plugin needs the command-line tools its instructions call (bun).
SKILL.md names 1 domain. In commands or code: gemini.google.com; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.
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.
Create Voyager Plugin is published under the GPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 2.7k tokens (SKILL.md is roughly 11k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2k tokens, read only when the agent opens those files.
Skills that share tags, products or a category with Create Voyager Plugin: Canvas Capture Extension (remotion-dev/remotion, 63k stars), Adversarial Review (mengxi-ream/read-frog, 10k stars), Record Extension Demo (mengxi-ream/read-frog, 10k stars) and Geoflow (yaojingang/GEOFlow, 3.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
voyager-crew (a GitHub organization) maintains it in voyager-crew/voyager, which has 20,338 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on October 10, 2026.
Source: voyager-crew/voyager on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.