Clickhouse Webhooks Events
jeremylongshore/tons-of-skills-marketplace
Ingest data into ClickHouse from webhooks, Kafka, and streaming sources with batching, dedup, and exactly-once patterns.
Query tophog — the ingestion pipeline's heavy-hitter store in ClickHouse — to identify hot or expensive actors (teamid, distinctid, sessionid, partition) during incident triage.
Install Querying Tophog
$ npx skills add PostHog/posthog --skill querying-tophog -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install PostHog/posthog querying-tophog --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/querying-tophog .claude/skills/querying-tophog && 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 "querying-tophog" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/querying-tophog into .claude/skills/querying-tophog/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "querying-tophog", 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/querying-tophogType 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 querying-tophog -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install PostHog/posthog querying-tophog --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/querying-tophog .agents/skills/querying-tophog && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "querying-tophog" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/querying-tophog into .agents/skills/querying-tophog/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "querying-tophog", 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 querying-tophog -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install PostHog/posthog querying-tophog --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/querying-tophog .cursor/skills/querying-tophog && 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 "querying-tophog" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/querying-tophog into .cursor/skills/querying-tophog/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "querying-tophog", 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/querying-tophog--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 querying-tophog -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install PostHog/posthog querying-tophog --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/querying-tophog .gemini/skills/querying-tophog && 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 "querying-tophog" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/querying-tophog into .gemini/skills/querying-tophog/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "querying-tophog", 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 querying-tophogInstalls 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 querying-tophog -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/querying-tophog .github/skills/querying-tophog && 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 "querying-tophog" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/querying-tophog into .github/skills/querying-tophog/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "querying-tophog", 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 querying-tophog -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 querying-tophog --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/querying-tophog .opencode/skills/querying-tophog && 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 "querying-tophog" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/querying-tophog into .opencode/skills/querying-tophog/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "querying-tophog", 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
querying-tophog- GitHub stars
- 40k
- Token cost
- ~2.3k tokens
- SKILL.md length
- 653 words
- Files
- 1
- Skills in repo
- 252
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Query tophog — the ingestion pipeline's heavy-hitter store in ClickHouse — to identify hot or expensive actors (teamid, distinctid, sessionid, partition) during incident triage.
- Works in 3 steps: The user must run login themselves (the… → Discover the database id — it is not… → Run queries; the cookie is read…
- Investigating ingestion lag
- SKILL.md covers Access — internal Metabase,…, Schema, Metric inventory — discover… and The lens: cost vs volume, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Querying Tophog is an agent skill from PostHog/posthog, published by the product's own GitHub organization. Query tophog — the ingestion pipeline's heavy-hitter store in ClickHouse — to identify hot or expensive actors (teamid, distinctid, sessionid, partition) during incident triage. Use when investigating ingestion lag, a hot or lagging Kafka partition, expensive person processing, merge storms, or any "which team or distinctid is causing this" question. Covers the internal Metabase access path (SSO via hogli), the tophog schema, and the cost-vs-volume query lens. Internal-only: results contain cross-customer…
Its SKILL.md is about 2.3k 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 Backend & APIs, covering Data warehousing, Authentication and Event-driven systems. It works with ClickHouse, Apache Kafka and 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
- Investigating ingestion lag
- Lagging Kafka partition
- Expensive person processing
- Distinctid is causing this question
Example prompts
- “which team or distinctid is causing this”
- “/querying-tophog”
Requirements
- Node.js
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- The user must run login themselves (the agent shell cannot access the
- Discover the database id — it is not stable across Metabase rebuilds
- Run queries; the cookie is read internally and never enters the transcript
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
No scripts in the folder and no shell commands in SKILL.md (its code samples are sql and bash).
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
Querying Tophog loads about 2.3k tokens when it runs. Until then it costs about 136 tokens; SKILL.md has 653 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 653 words (~2,284 tokens).
“tophog is the ingestion pipeline's heavy-hitter tracker: workers accumulate per-key aggregates (counts, timers) in memory and periodically flush them to the tophog ClickHouse table via Kafka (clickhouse_tophog topic). It answers "which actor is responsible" questions that fleet-level Prometheus metrics cannot…”
- name
- querying-tophog
Files
Just SKILL.md in .agents/skills/querying-tophog of PostHog/posthog.
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
Querying Tophog 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 |
|---|---|---|---|---|---|---|
| Querying Tophog this skillPostHog/posthog | 40k | — | ~2.3k | Automated safety check: Pass | Custom licence | |
| Clickhouse Webhooks Eventsjeremylongshore/tons-of-skills-marketplace | 2.8k | — | ~1.7k | Automated safety check: Pass | MIT | |
| Opensourcefaqdigoal/blog | 8.6k | — | ~966 | Automated safety check: Pass | GPL-2.0 | |
| Managing Amazon Mskaws/agent-toolkit-for-aws | 2.8k | — | ~2.6k | Automated safety check: Pass | Apache-2.0 | |
| AWS Storageaws/agent-toolkit-for-aws | 2.8k | — | ~5.8k | Automated safety check: Pass | Apache-2.0 | |
| Io ConnectorsKilo-Org/kilo-marketplace | 190 | — | ~1.3k | Automated safety check: Pass | Apache-2.0 |
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Questions about Querying Tophog
What does Querying Tophog do?
Query tophog — the ingestion pipeline's heavy-hitter store in ClickHouse — to identify hot or expensive actors (teamid, distinctid, sessionid, partition) during incident triage. Querying Tophog is an agent skill from PostHog/posthog, published by the product's own GitHub organization. Query tophog — the ingestion pipeline's heavy-hitter store in ClickHouse — to identify hot or expensive actors (teamid, distinctid, sessionid, partition) during incident triage.
When should I use Querying Tophog?
Querying Tophog fits situations like: investigating ingestion lag; lagging Kafka partition; expensive person processing; distinctid is causing this question.
How do I install Querying Tophog in Claude Code?
Run `npx skills add PostHog/posthog --skill querying-tophog -a claude-code`. Or copy the skill folder (.agents/skills/querying-tophog in PostHog/posthog) into .claude/skills/querying-tophog in your project. Claude Code loads it when a task matches its description.
How do I install Querying Tophog in Codex?
Run `npx skills add PostHog/posthog --skill querying-tophog -a codex`. Or copy the skill folder (.agents/skills/querying-tophog in PostHog/posthog) into .agents/skills/querying-tophog in your project. Codex loads it when a task matches its description.
Can I use Querying Tophog 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 querying-tophog -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/querying-tophog, .gemini/skills/querying-tophog, .github/skills/querying-tophog and .opencode/skills/querying-tophog in your project.
What does Querying Tophog need to run?
SKILL.md names no scripts, command-line tools or credentials: Querying Tophog is instructions for the agent only. Our summary lists: Node.js.
Does Querying Tophog 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 Querying Tophog 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 Querying Tophog use?
Querying Tophog 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 Querying Tophog use?
About 2.3k tokens (SKILL.md is roughly 9.1k 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 Querying Tophog?
Skills that share tags, products or a category with Querying Tophog: Clickhouse Webhooks Events (jeremylongshore/tons-of-skills-marketplace, 2.8k stars), Opensourcefaq (digoal/blog, 8.6k stars), Managing Amazon Msk (aws/agent-toolkit-for-aws, 2.8k stars) and AWS Storage (aws/agent-toolkit-for-aws, 2.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Querying Tophog?
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.