Keybase RPC Log Analysis
keybase/client
Captures a clean Keybase service log and analyzes it for redundant, duplicated or looping RPCs, then checks whether a caching fix reduced the calls.
Write Streamlit app source code that runs well in a PostHog sandbox — the posthogapps.query() bridge for reading PostHog data, the packages baked into the sandbox image, caching and session state…
Install Writing Streamlit Apps
$ npx skills add PostHog/posthog --skill writing-streamlit-apps -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install PostHog/posthog writing-streamlit-apps --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/products/streamlit_apps/skills/writing-streamlit-apps .claude/skills/writing-streamlit-apps && 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 "writing-streamlit-apps" agent skill from https://github.com/PostHog/posthog/tree/master/products/streamlit_apps/skills/writing-streamlit-apps into .claude/skills/writing-streamlit-apps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-streamlit-apps", 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/products/streamlit_apps/skills/writing-streamlit-appsType 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 writing-streamlit-apps -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install PostHog/posthog writing-streamlit-apps --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/products/streamlit_apps/skills/writing-streamlit-apps .agents/skills/writing-streamlit-apps && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "writing-streamlit-apps" agent skill from https://github.com/PostHog/posthog/tree/master/products/streamlit_apps/skills/writing-streamlit-apps into .agents/skills/writing-streamlit-apps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-streamlit-apps", 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 writing-streamlit-apps -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install PostHog/posthog writing-streamlit-apps --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/products/streamlit_apps/skills/writing-streamlit-apps .cursor/skills/writing-streamlit-apps && 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 "writing-streamlit-apps" agent skill from https://github.com/PostHog/posthog/tree/master/products/streamlit_apps/skills/writing-streamlit-apps into .cursor/skills/writing-streamlit-apps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-streamlit-apps", 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 products/streamlit_apps/skills/writing-streamlit-apps--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 writing-streamlit-apps -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install PostHog/posthog writing-streamlit-apps --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/products/streamlit_apps/skills/writing-streamlit-apps .gemini/skills/writing-streamlit-apps && 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 "writing-streamlit-apps" agent skill from https://github.com/PostHog/posthog/tree/master/products/streamlit_apps/skills/writing-streamlit-apps into .gemini/skills/writing-streamlit-apps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-streamlit-apps", 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 writing-streamlit-appsInstalls 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 writing-streamlit-apps -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/products/streamlit_apps/skills/writing-streamlit-apps .github/skills/writing-streamlit-apps && 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 "writing-streamlit-apps" agent skill from https://github.com/PostHog/posthog/tree/master/products/streamlit_apps/skills/writing-streamlit-apps into .github/skills/writing-streamlit-apps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-streamlit-apps", 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 writing-streamlit-apps -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 writing-streamlit-apps --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/products/streamlit_apps/skills/writing-streamlit-apps .opencode/skills/writing-streamlit-apps && 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 "writing-streamlit-apps" agent skill from https://github.com/PostHog/posthog/tree/master/products/streamlit_apps/skills/writing-streamlit-apps into .opencode/skills/writing-streamlit-apps/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "writing-streamlit-apps", 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
writing-streamlit-apps- GitHub stars
- 40k
- Token cost
- ~1.5k tokens
- SKILL.md length
- 612 words
- Files
- 1
- Skills in repo
- 252
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Write Streamlit app source code that runs well in a PostHog sandbox — the posthogapps.query() bridge for reading PostHog data, the packages baked into the sandbox image, caching and session state…
- Works in 2 steps: Cache every bridge call — uncached, one… → Use st.session_state for anything that…
- Debugging the Python source of a PostHog Streamlit app
- SKILL.md covers Reading PostHog data:…, Design for Streamlit's rerun…, Layout and charts and What's installed, plus 2 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Writing Streamlit Apps is an agent skill from PostHog/posthog, published by the product's own GitHub organization. Write Streamlit app source code that runs well in a PostHog sandbox — the posthogapps.query() bridge for reading PostHog data, the packages baked into the sandbox image, caching and session state across Streamlit reruns, layout and chart patterns, and the app.py entry point with any helper modules and data files bundled beside it. Use when authoring or debugging the Python source of a PostHog Streamlit app, when a query inside an app fails, or when asked to "write a streamlit app that shows PostHog data".
Its SKILL.md is about 1.5k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Development, covering Session handoff, Caching and Debugging. It works with Streamlit, PostHog and Python. 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
- Debugging the Python source of a PostHog Streamlit app
- A query inside an app fails
- Asked to write a streamlit app that shows PostHog data
Example prompts
- “write a streamlit app that shows PostHog data”
- “/writing-streamlit-apps”
Requirements
- Python 3
Workflow steps
2 steps, taken from the first numbered list in SKILL.md.
- Cache every bridge call — uncached, one slider drag re-fires every query
- Use st.session_state for anything that must survive reruns — accumulated selections, pagination cursors, "last refreshed" stamps…
What it can do on your machine
Read from SKILL.md and the folder at commit 10f9ad7. 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 (its code samples are python).
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
Writing Streamlit Apps loads about 1.5k tokens when it runs. Until then it costs about 134 tokens; SKILL.md has 612 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 612 words (~1,490 tokens).
“The source you write becomes app.py at the root of a sandboxed Streamlit 1.31 runtime. Deployment mechanics (create/start/share) are the managing-streamlit-apps skill; this one is about the code.”
- name
- writing-streamlit-apps
Files
Just SKILL.md in products/streamlit_apps/skills/writing-streamlit-apps of PostHog/posthog.
Open the folder on GitHubat commit 10f9ad7
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
Writing Streamlit Apps 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 |
|---|---|---|---|---|---|---|
| Writing Streamlit Apps this skillPostHog/posthog | 40k | — | ~1.5k | Automated safety check: Pass | Custom licence | |
| Keybase RPC Log Analysiskeybase/client | 9.3k | — | ~3k | Automated safety check: Pass | BSD-3-Clause | |
| Flowfile Debugging PlaybookEdwardvaneechoud/Flowfile | 373 | — | ~6.3k | Automated safety check: Pass | MIT | |
| Nx Monorepoaiskillstore/marketplace | 430 | — | ~2k | Automated safety check: Pass | None | |
| Native Data FetchingCherryHQ/cherry-studio-app | 4k | 6 repos | ~2.9k | Automated safety check: Notes | MIT | |
| LangBot Plugin Developmentlangbot-app/LangBot | 18k | — | ~3.9k | Automated safety check: Pass | Apache-2.0 |
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Related
Categories
Questions about Writing Streamlit Apps
What does Writing Streamlit Apps do?
Write Streamlit app source code that runs well in a PostHog sandbox — the posthogapps.query() bridge for reading PostHog data, the packages baked into the sandbox image, caching and session state…. Writing Streamlit Apps is an agent skill from PostHog/posthog, published by the product's own GitHub organization.py entry point with any helper modules and data files bundled beside it.
When should I use Writing Streamlit Apps?
Writing Streamlit Apps fits situations like: debugging the Python source of a PostHog Streamlit app; A query inside an app fails; asked to write a streamlit app that shows PostHog data.
How do I install Writing Streamlit Apps in Claude Code?
Run `npx skills add PostHog/posthog --skill writing-streamlit-apps -a claude-code`. Or copy the skill folder (products/streamlit_apps/skills/writing-streamlit-apps in PostHog/posthog) into .claude/skills/writing-streamlit-apps in your project. Claude Code loads it when a task matches its description.
How do I install Writing Streamlit Apps in Codex?
Run `npx skills add PostHog/posthog --skill writing-streamlit-apps -a codex`. Or copy the skill folder (products/streamlit_apps/skills/writing-streamlit-apps in PostHog/posthog) into .agents/skills/writing-streamlit-apps in your project. Codex loads it when a task matches its description.
Can I use Writing Streamlit Apps 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 writing-streamlit-apps -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/writing-streamlit-apps, .gemini/skills/writing-streamlit-apps, .github/skills/writing-streamlit-apps and .opencode/skills/writing-streamlit-apps in your project.
What does Writing Streamlit Apps need to run?
SKILL.md names no scripts, command-line tools or credentials: Writing Streamlit Apps is instructions for the agent only. Our summary lists: Python 3.
Does Writing Streamlit Apps 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 Writing Streamlit Apps 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 Writing Streamlit Apps use?
Writing Streamlit Apps 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 Writing Streamlit Apps use?
About 1.5k tokens (SKILL.md is roughly 6k 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 Writing Streamlit Apps?
Skills that share tags, products or a category with Writing Streamlit Apps: Keybase RPC Log Analysis (keybase/client, 9.3k stars), Flowfile Debugging Playbook (Edwardvaneechoud/Flowfile, 373 stars), Nx Monorepo (aiskillstore/marketplace, 430 stars) and Native Data Fetching (CherryHQ/cherry-studio-app, 4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Writing Streamlit Apps?
PostHog (a GitHub organization, an official publisher) maintains it in PostHog/posthog, which has 40,182 GitHub stars. The repository holds 252 skills in this directory. The repository was last updated on October 8, 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.