Dev Toolbar Review
supabase/supabase
Safety rules for the dev toolbar, PostHog client, and feature flags.
How products and pages appear in the PostHog sidebar: which category they sit in, which icon and color they get, and which groups share a color gradient.
Install Styling Sidebar Products
$ npx skills add PostHog/posthog --skill styling-sidebar-products -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install PostHog/posthog styling-sidebar-products --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/PostHog/posthog.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/styling-sidebar-products .claude/skills/styling-sidebar-products && 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 "styling-sidebar-products" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/styling-sidebar-products into .claude/skills/styling-sidebar-products/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "styling-sidebar-products", 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/PostHog/posthog/tree/master/.agents/skills/styling-sidebar-productsType 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 PostHog/posthog --skill styling-sidebar-products -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install PostHog/posthog styling-sidebar-products --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/PostHog/posthog.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/styling-sidebar-products .agents/skills/styling-sidebar-products && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "styling-sidebar-products" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/styling-sidebar-products into .agents/skills/styling-sidebar-products/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "styling-sidebar-products", 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 PostHog/posthog --skill styling-sidebar-products -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install PostHog/posthog styling-sidebar-products --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/PostHog/posthog.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/styling-sidebar-products .cursor/skills/styling-sidebar-products && 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 "styling-sidebar-products" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/styling-sidebar-products into .cursor/skills/styling-sidebar-products/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "styling-sidebar-products", 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/PostHog/posthog.git --path .agents/skills/styling-sidebar-products--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 PostHog/posthog --skill styling-sidebar-products -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install PostHog/posthog styling-sidebar-products --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/PostHog/posthog.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/styling-sidebar-products .gemini/skills/styling-sidebar-products && 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 "styling-sidebar-products" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/styling-sidebar-products into .gemini/skills/styling-sidebar-products/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "styling-sidebar-products", 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 PostHog/posthog styling-sidebar-productsInstalls 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 PostHog/posthog --skill styling-sidebar-products -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/PostHog/posthog.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/styling-sidebar-products .github/skills/styling-sidebar-products && 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 "styling-sidebar-products" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/styling-sidebar-products into .github/skills/styling-sidebar-products/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "styling-sidebar-products", 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 PostHog/posthog --skill styling-sidebar-products -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install PostHog/posthog styling-sidebar-products --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/PostHog/posthog.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/styling-sidebar-products .opencode/skills/styling-sidebar-products && 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 "styling-sidebar-products" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/styling-sidebar-products into .opencode/skills/styling-sidebar-products/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "styling-sidebar-products", 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
styling-sidebar-products- GitHub stars
- 40k
- Token cost
- ~1.8k tokens
- SKILL.md length
- 735 words
- Files
- 2 (incl. scripts)
- Skills in repo
- 252
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
How products and pages appear in the PostHog sidebar: which category they sit in, which icon and color they get, and which groups share a color gradient.
- Adding a product
- SKILL.md covers Where things live, Rules, Color families and Categories, plus 1 more section
- Runs Python scripts from its folder; calls python3 and pnpm
- Data management page to the sidebar (treeItemsProducts
What it does
Styling Sidebar Products is an agent skill from PostHog/posthog, published by the product's own GitHub organization. How products and pages appear in the PostHog sidebar: which category they sit in, which icon and color they get, and which groups share a color gradient. Use when adding a product or data management page to the sidebar (treeItemsProducts or treeItemsMetadata in a products//manifest.tsx), giving an entry a new icon or color, moving an entry between sidebar categories, adding a category, or when a sidebar icon renders the wrong color, the wrong glyph, or differently once starred. Trigger terms: sidebar, nav, All…
Its SKILL.md is about 1.8k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including scripts (for example `scripts/sidebar_gradient.py`).
It sits in Frontend & Design, covering React components. It works with PostHog. The repository describes itself as: :hedgehog: PostHog is the leading platform for building self-driving products. Our developer tools – AI observability, analytics, session replay, flags, experiments, error…
When your agent uses it
- Adding a product
- Data management page to the sidebar (treeItemsProducts
- TreeItemsMetadata in a products//manifest.tsx)
- Giving an entry a new icon
Example prompts
- “/styling-sidebar-products”
Requirements
- Python 3
What it can do on your machine
Read from SKILL.md and the folder at commit 812e5c6. 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
Ships 1 file in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
python3pnpm
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use pnpm, which can reach the network depending on how they are called.
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
Styling Sidebar Products loads about 1.8k tokens when it runs. Until then it costs about 161 tokens; SKILL.md has 735 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); the scripts in this folder are not scanned.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 735 words (~1,761 tokens).
“The sidebar reads every entry from the product manifests. An entry needs three things to look right: a category, an icon type that only it uses in the sidebar, and a color. Some categories share a gradient, so a new…”
- name
- styling-sidebar-products
Files
SKILL.md and 1 other file (scripts) in .agents/skills/styling-sidebar-products of PostHog/posthog.
- SKILL.md
- scripts/sidebar_gradient.py
Open the folder on GitHubat commit 812e5c6
Used in 1 other repository
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders. This page covers the copy in PostHog/posthog, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Styling Sidebar Products 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 |
|---|---|---|---|---|---|---|
| Styling Sidebar Products this skillPostHog/posthog | 40k | — | ~1.8k | Automated safety check: Pass | Custom licence | |
| Dev Toolbar Reviewsupabase/supabase | 111k | — | ~1.5k | Automated safety check: Pass | Apache-2.0 | |
| Storybook StoriesPostHog/code | 179 | — | ~929 | Automated safety check: Pass | MIT | |
| Web Artifacts Builderanthropics/skills | 180k | 41 repos | ~769 | Automated safety check: Pass | Apache-2.0 | |
| Tailwindcss Developmentanonaddy/anonaddy | 4.9k | 10 repos | ~865 | Automated safety check: Pass | MIT | |
| Core Component Library PatternsChrisWiles/claude-code-showcase | 6.1k | 8 repos | ~1.2k | Automated safety check: Pass | None |
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Related
Works with
Categories
Questions about Styling Sidebar Products
What does Styling Sidebar Products do?
How products and pages appear in the PostHog sidebar: which category they sit in, which icon and color they get, and which groups share a color gradient. Styling Sidebar Products is an agent skill from PostHog/posthog, published by the product's own GitHub organization. How products and pages appear in the PostHog sidebar: which category they sit in, which icon and color they get, and which groups share a color gradient.
When should I use Styling Sidebar Products?
Styling Sidebar Products fits situations like: adding a product; data management page to the sidebar (treeItemsProducts; treeItemsMetadata in a products//manifest.tsx); giving an entry a new icon.
How do I install Styling Sidebar Products in Claude Code?
Run `npx skills add PostHog/posthog --skill styling-sidebar-products -a claude-code`. Or copy the skill folder (.agents/skills/styling-sidebar-products in PostHog/posthog) into .claude/skills/styling-sidebar-products in your project. Claude Code loads it when a task matches its description.
How do I install Styling Sidebar Products in Codex?
Run `npx skills add PostHog/posthog --skill styling-sidebar-products -a codex`. Or copy the skill folder (.agents/skills/styling-sidebar-products in PostHog/posthog) into .agents/skills/styling-sidebar-products in your project. Codex loads it when a task matches its description.
Can I use Styling Sidebar Products 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 PostHog/posthog --skill styling-sidebar-products -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/styling-sidebar-products, .gemini/skills/styling-sidebar-products, .github/skills/styling-sidebar-products and .opencode/skills/styling-sidebar-products in your project.
What does Styling Sidebar Products need to run?
Going by SKILL.md and its folder, Styling Sidebar Products needs Python for the scripts in its folder and the command-line tools its instructions call (python3 and pnpm). Our summary lists: Python 3.
Does Styling Sidebar Products 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 Styling Sidebar Products 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Styling Sidebar Products use?
Styling Sidebar Products has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Styling Sidebar Products use?
About 1.8k tokens (SKILL.md is roughly 7k 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 Styling Sidebar Products?
Skills that share tags, products or a category with Styling Sidebar Products: Dev Toolbar Review (supabase/supabase, 111k stars), Storybook Stories (PostHog/code, 179 stars), Web Artifacts Builder (anthropics/skills, 180k stars) and Tailwindcss Development (anonaddy/anonaddy, 4.9k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Styling Sidebar Products?
PostHog (a GitHub organization, an official publisher) maintains it in PostHog/posthog, which has 40,200 GitHub stars. The repository holds 252 skills in this directory. The repository was last updated on October 9, 2026.
Source: PostHog/posthog on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.