Official agent skill

Documenting Warehouse Sources

by PostHog in PostHog/posthog

Write or update the user-facing posthog.com documentation for a PostHog Data warehouse import source.

OfficialCustom licenceAuto-check passedDatabases

Install Documenting Warehouse Sources

skills CLI
$ npx skills add PostHog/posthog --skill documenting-warehouse-sources -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install PostHog/posthog documenting-warehouse-sources --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/PostHog/posthog.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/documenting-warehouse-sources .claude/skills/documenting-warehouse-sources && rm -rf skills-src

Use ~/.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/

Facts

Skill name
documenting-warehouse-sources
GitHub stars
40k
Token cost
~1.7k tokens
SKILL.md length
564 words
Files
1
Skills in repo
252
Repo updated
First seen
Licence
Custom licence

At a glance

Write or update the user-facing posthog.com documentation for a PostHog Data warehouse import source.

  • Works in 3 steps: The doc filename: .md. → The source's docsUrl in… → (implicitly) the listing link — now…
  • Adding a new source doc
  • SKILL.md covers The two things the website…, Frontmatter, Canonical template and Shared snippets, plus 2 more sections
  • Calls python; reaches posthog.com

What it does

Documenting Warehouse Sources is an agent skill from PostHog/posthog, published by the product's own GitHub organization. Write or update the user-facing posthog.com documentation for a PostHog Data warehouse import source. Use when adding a new source doc, fixing an inconsistent or stub source doc, or standardizing the docs at contents/docs/cdp/sources. Covers the canonical template, shared snippets, the auto-rendered <SourceParameters / and <SourceTables / components, frontmatter, and the docsUrl/slug rule that prevents 404s.

Its SKILL.md is about 1.7k 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 Databases, covering Data warehousing. 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 new source doc
  • Fixing an inconsistent
  • Stub source doc
  • Standardizing the docs at contents/docs/cdp/sources

Example prompts

  • “/documenting-warehouse-sources”

Requirements

  • Python 3

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

  1. The doc filename: .md.
  2. The source's docsUrl in get_source_config: https://posthog.com/docs/cdp/sources/.
  3. (implicitly) the listing link — now derived from docsUrl, so it follows automatically.

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

    Shell commands in SKILL.md call:

    • python

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • posthog.com

    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

Documenting Warehouse Sources loads about 1.7k tokens when it runs. Until then it costs about 111 tokens; SKILL.md has 564 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~111
When it runs · the whole SKILL.md, loaded when a task matches
~1.7k

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 564 words (~1,721 tokens).

“User-facing source docs live in the posthog.com repo (not this one) at contents/docs/cdp/sources/.md, served at both /docs/cdp/sources/ and /docs/data-warehouse/sources/. This skill defines the one consistent shape every source doc must follow. Pair it with /implementing-warehouse-sources when shipping a new source.”

— opening of SKILL.md by PostHog, Custom licence
name
documenting-warehouse-sources

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/documenting-warehouse-sources 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

Documenting Warehouse Sources 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.

Documenting Warehouse Sources compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Documenting Warehouse Sources this skillPostHog/posthog40k—~1.7kAutomated safety check: PassCustom licence
Keeper Stress AnalysisClickHouse/ClickHouse50k—~4.7kAutomated safety check: PassApache-2.0
Perf ComparisonClickHouse/ClickHouse50k—~3.9kAutomated safety check: NotesApache-2.0
Patch Release CheckClickHouse/ClickHouse50k—~4kAutomated safety check: NotesApache-2.0
Clickhouse Architecture Advisorvemetric/vemetric3952 repos~791Automated safety check: PassApache-2.0
Neocarta Add Source Connectorneo4j-labs/neocarta146—~1.9kAutomated safety check: PassApache-2.0

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Works with

Categories

Questions about Documenting Warehouse Sources

What does Documenting Warehouse Sources do?

Write or update the user-facing posthog.com documentation for a PostHog Data warehouse import source. Documenting Warehouse Sources is an agent skill from PostHog/posthog, published by the product's own GitHub organization.com documentation for a PostHog Data warehouse import source.

When should I use Documenting Warehouse Sources?

Documenting Warehouse Sources fits situations like: adding a new source doc; fixing an inconsistent; stub source doc; standardizing the docs at contents/docs/cdp/sources.

How do I install Documenting Warehouse Sources in Claude Code?

Run `npx skills add PostHog/posthog --skill documenting-warehouse-sources -a claude-code`. Or copy the skill folder (.agents/skills/documenting-warehouse-sources in PostHog/posthog) into .claude/skills/documenting-warehouse-sources in your project. Claude Code loads it when a task matches its description.

How do I install Documenting Warehouse Sources in Codex?

Run `npx skills add PostHog/posthog --skill documenting-warehouse-sources -a codex`. Or copy the skill folder (.agents/skills/documenting-warehouse-sources in PostHog/posthog) into .agents/skills/documenting-warehouse-sources in your project. Codex loads it when a task matches its description.

Can I use Documenting Warehouse Sources 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 documenting-warehouse-sources -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/documenting-warehouse-sources, .gemini/skills/documenting-warehouse-sources, .github/skills/documenting-warehouse-sources and .opencode/skills/documenting-warehouse-sources in your project.

What does Documenting Warehouse Sources need to run?

Going by SKILL.md and its folder, Documenting Warehouse Sources needs the command-line tools its instructions call (python). Our summary lists: Python 3.

Does Documenting Warehouse Sources access the network?

SKILL.md names 1 domain. In commands or code: posthog.com; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is Documenting Warehouse Sources 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 Documenting Warehouse Sources use?

Documenting Warehouse Sources 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 Documenting Warehouse Sources use?

About 1.7k tokens (SKILL.md is roughly 6.9k 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 Documenting Warehouse Sources?

Skills that share tags, products or a category with Documenting Warehouse Sources: Keeper Stress Analysis (ClickHouse/ClickHouse, 50k stars), Perf Comparison (ClickHouse/ClickHouse, 50k stars), Patch Release Check (ClickHouse/ClickHouse, 50k stars) and Clickhouse Architecture Advisor (vemetric/vemetric, 395 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Documenting Warehouse Sources?

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.