html-plan is a skill in anthropics/claude-plugins-community, last changed 5 Oct 2026. It can touch credentials, run shell commands, name web addresses and bundle scripts — read the findings before installing.
Write an implementation plan as one interactive HTML page - a tree of claims (why › what › how › where), each proved by one exhibit (UI mockup, state machine, call stack, schema or code), with the decisions the user has to make placed on the claim they change. Use when the user types /html-plan, or asks for a plan, RFC or design before building something that touches more than a couple of files.
At a glance
What it can touch
How much a skill can do, not whether it is risky.
Pattern check
Nothing flagged
That isn't proof the skill is harmless.
Commit 06ec7b6 · 3 Nov 2026
How the check worksPattern check: nothing flagged
That isn't proof the skill is harmless.
Install
Each tab says whether it installs commit 06ec7b6, the one we checked, or the latest version.
OpenCode also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Goose also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Windsurf (Devin Desktop) also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Zed also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Roo Code also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Factory Droid also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Junie also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Amp also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
No install command here reaches Kiro. Copy the skill's folder into .kiro/skills/ in your project, or ~/.kiro/skills/ for all your projects. anthropics/claude-plugins-community/html-plan/skills/html-plan (opens in a new tab)
Antigravity also looks in .agents/skills/, so the Any agent steps reach it with This project. For All projects, see where Antigravity looks.
Cline also looks in .claude/skills/, so the Claude Code steps reach it with This project. For All projects, see where Cline looks.
Claude Code
Pinned to commit 06ec7b6, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/anthropics/claude-plugins-community.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 06ec7b6a0a82bdc4bec44bd82d4368c42f20d7c1 &&git -C "$tmp" sparse-checkout set -- html-plan/skills/html-plan &&git -C "$tmp" checkout -q 06ec7b6a0a82bdc4bec44bd82d4368c42f20d7c1 &&mkdir -p .claude/skills &&mkdir .claude/skills/html-plan &&cp -R "$tmp"/html-plan/skills/html-plan/. .claude/skills/html-plan/ &&rm -rf "$tmp"If Claude Code was already running and this created the skills folder, run /reload-skills.
Claude apps
Pinned to commit 06ec7b6, the one we checked.
Skills in the Claude apps belong to your account rather than to a project.
Make html-plan.zip, with the skill folder at the top level:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/anthropics/claude-plugins-community.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 06ec7b6a0a82bdc4bec44bd82d4368c42f20d7c1 &&git -C "$tmp" sparse-checkout set -- html-plan/skills/html-plan &&git -C "$tmp" checkout -q 06ec7b6a0a82bdc4bec44bd82d4368c42f20d7c1 &&out="$(mktemp -d)" &&cp -R "$tmp"/html-plan/skills/html-plan "$out"/html-plan &&(cd "$out" && zip -qr - html-plan) > html-plan.zip &&rm -rf "$tmp" "$out"In Claude, open Customize > Skills, select +, then + Create skill > Upload a skill, and choose html-plan.zip.
On Free, Pro and Max plans, turn on Code execution and file creation (Create and edit files in newer settings) under Settings > Capabilities.
Codex
Pinned to commit 06ec7b6, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/anthropics/claude-plugins-community.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 06ec7b6a0a82bdc4bec44bd82d4368c42f20d7c1 &&git -C "$tmp" sparse-checkout set -- html-plan/skills/html-plan &&git -C "$tmp" checkout -q 06ec7b6a0a82bdc4bec44bd82d4368c42f20d7c1 &&mkdir -p .agents/skills &&mkdir .agents/skills/html-plan &&cp -R "$tmp"/html-plan/skills/html-plan/. .agents/skills/html-plan/ &&rm -rf "$tmp"Codex picks up new skills on its own; restart it if this one does not appear.
Cursor
Pinned to commit 06ec7b6, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/anthropics/claude-plugins-community.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 06ec7b6a0a82bdc4bec44bd82d4368c42f20d7c1 &&git -C "$tmp" sparse-checkout set -- html-plan/skills/html-plan &&git -C "$tmp" checkout -q 06ec7b6a0a82bdc4bec44bd82d4368c42f20d7c1 &&mkdir -p .cursor/skills &&mkdir .cursor/skills/html-plan &&cp -R "$tmp"/html-plan/skills/html-plan/. .cursor/skills/html-plan/ &&rm -rf "$tmp"Copilot & VS Code
Pinned to commit 06ec7b6, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/anthropics/claude-plugins-community.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 06ec7b6a0a82bdc4bec44bd82d4368c42f20d7c1 &&git -C "$tmp" sparse-checkout set -- html-plan/skills/html-plan &&git -C "$tmp" checkout -q 06ec7b6a0a82bdc4bec44bd82d4368c42f20d7c1 &&mkdir -p .github/skills &&mkdir .github/skills/html-plan &&cp -R "$tmp"/html-plan/skills/html-plan/. .github/skills/html-plan/ &&rm -rf "$tmp"In a running Copilot CLI session, run /skills reload.
Or install it with gh skill, which also installs the commit we checked. Needs GitHub CLI 2.90 or later.
gh skill install anthropics/claude-plugins-community html-plan/skills/html-plan/SKILL.md@06ec7b6a0a82bdc4bec44bd82d4368c42f20d7c1 --agent github-copilot --scope projectGemini CLI
Pinned to commit 06ec7b6, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/anthropics/claude-plugins-community.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 06ec7b6a0a82bdc4bec44bd82d4368c42f20d7c1 &&git -C "$tmp" sparse-checkout set -- html-plan/skills/html-plan &&git -C "$tmp" checkout -q 06ec7b6a0a82bdc4bec44bd82d4368c42f20d7c1 &&mkdir -p .gemini/skills &&mkdir .gemini/skills/html-plan &&cp -R "$tmp"/html-plan/skills/html-plan/. .gemini/skills/html-plan/ &&rm -rf "$tmp"In a running session, run /skills reload.
Or use Gemini CLI’s own installer. Installs the latest version, not the one we checked.
gemini skills install https://github.com/anthropics/claude-plugins-community.git --path html-plan/skills/html-plan --scope workspaceAny agent
Pinned to commit 06ec7b6, the one we checked.
OpenCode, Goose, Windsurf (Devin Desktop), Zed, Roo Code, Factory Droid, Junie, Amp and Antigravity read .agents/skills in a project.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/anthropics/claude-plugins-community.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 06ec7b6a0a82bdc4bec44bd82d4368c42f20d7c1 &&git -C "$tmp" sparse-checkout set -- html-plan/skills/html-plan &&git -C "$tmp" checkout -q 06ec7b6a0a82bdc4bec44bd82d4368c42f20d7c1 &&mkdir -p .agents/skills &&mkdir .agents/skills/html-plan &&cp -R "$tmp"/html-plan/skills/html-plan/. .agents/skills/html-plan/ &&rm -rf "$tmp"Or use the skills CLI from skills.sh. Installs the latest version, not the one we checked. The skills CLI reports installs to skills.sh unless you set DISABLE_TELEMETRY=1.
npx skills@1.7.4 add anthropics/claude-plugins-community --skill html-planWhat it can touch
From the files and frontmatter at commit 06ec7b6. This is how much a skill can do, not whether it is risky.
Pattern check
Pattern check: nothing flagged · commit 06ec7b6 · 3 Nov 2026
We checked every text file in this skill, at commit 06ec7b6 on 3 Nov 2026, against 45 published patterns such as download-and-run commands, hidden text and credential access. We don't run the skill, we don't read the web pages it points to, and we can't judge everything its instructions might lead an agent to do. In published tests, pattern checks like this one missed most malicious skills. Read the skill before you install it — especially anything it asks you to download or run.
How the check worksReport an incorrect finding
Outside links we did not follow
- http://www.w3.org/2000/svg
Format check
Each agent reads SKILL.md a little differently. We check the file against each one's published rules; we don't run the skill in any agent.
Agent Skills specPasses
The open format from agentskills.io, held to the strictest version of each rule among the agents we check.
- Note
The first sentence of the description is 260 characters. Agents shorten long descriptions, so lead with the main job. D8
Fix: Start with one short sentence that names the job.
- Note
There is no license field, so readers can't tell whether they may reuse the skill. O2
Fix: Add license: with an SPDX name such as MIT or Apache-2.0, or the name of a bundled licence file.
- Note
Reference files over 100 lines with no table of contents at the top: references/blocks.md (228 lines). B5
Fix: Add a short list of the sections at the top of each.
- Note
Claude CodePasses
Claude Code reads its own extra fields, ignores unknown ones, and still loads a skill whose frontmatter is broken, without its fields.
- Note
The first sentence of the description is 260 characters. Agents shorten long descriptions, so lead with the main job. D8
Fix: Start with one short sentence that names the job.
- Note
Reference files over 100 lines with no table of contents at the top: references/blocks.md (228 lines). B5
Fix: Add a short list of the sections at the top of each.
- Note
Claude apps & API uploadPasses
Uploading to claude.ai or the Claude API, or packaging with Anthropic's script, accepts only the six spec fields and stops on anything else.
- Note
The description is 398 characters. The claude.ai Help Center says 200 at most, though Anthropic's API docs and validator allow 1,024. D4
Fix: If the claude.ai upload refuses it, trim the description to 200 characters.
- Note
Reference files over 100 lines with no table of contents at the top: references/blocks.md (228 lines). B5
Fix: Add a short list of the sections at the top of each.
- Note
OpenAI (Codex & API)Passes
Codex finds SKILL.md by its exact name and needs a description; OpenAI's Skills API checks the frontmatter against the spec and caps uploads.
- Note
The first sentence of the description is 260 characters. Agents shorten long descriptions, so lead with the main job. D8
Fix: Start with one short sentence that names the job.
- Note
- VS Code & CopilotPasses
SKILL.md
Files
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