Prod Telemetry
UsefulSoftwareCo/executor
Query Executor's production telemetry — Axiom traces (executor-cloud dataset), prod Postgres via PlanetScale, PostHog product analytics — through the Executor MCP.
Validate and publish a canvas source project safely: the source-project shape, declared capabilities, reading the current version pointer, iterating on validation diagnostics, guarded publishing…
OfficialCustom licenceAuto-check passed
Install Validating And Publishing Canvases
$ npx skills add PostHog/posthog --skill validating-and-publishing-canvases -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install PostHog/posthog validating-and-publishing-canvases --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/canvas/skills/validating-and-publishing-canvases .claude/skills/validating-and-publishing-canvases && 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 "validating-and-publishing-canvases" agent skill from https://github.com/PostHog/posthog/tree/master/products/canvas/skills/validating-and-publishing-canvases into .claude/skills/validating-and-publishing-canvases/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "validating-and-publishing-canvases", 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/canvas/skills/validating-and-publishing-canvasesType 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 validating-and-publishing-canvases -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install PostHog/posthog validating-and-publishing-canvases --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/canvas/skills/validating-and-publishing-canvases .agents/skills/validating-and-publishing-canvases && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "validating-and-publishing-canvases" agent skill from https://github.com/PostHog/posthog/tree/master/products/canvas/skills/validating-and-publishing-canvases into .agents/skills/validating-and-publishing-canvases/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "validating-and-publishing-canvases", 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 validating-and-publishing-canvases -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install PostHog/posthog validating-and-publishing-canvases --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/canvas/skills/validating-and-publishing-canvases .cursor/skills/validating-and-publishing-canvases && 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 "validating-and-publishing-canvases" agent skill from https://github.com/PostHog/posthog/tree/master/products/canvas/skills/validating-and-publishing-canvases into .cursor/skills/validating-and-publishing-canvases/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "validating-and-publishing-canvases", 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/canvas/skills/validating-and-publishing-canvases--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 validating-and-publishing-canvases -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install PostHog/posthog validating-and-publishing-canvases --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/canvas/skills/validating-and-publishing-canvases .gemini/skills/validating-and-publishing-canvases && 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 "validating-and-publishing-canvases" agent skill from https://github.com/PostHog/posthog/tree/master/products/canvas/skills/validating-and-publishing-canvases into .gemini/skills/validating-and-publishing-canvases/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "validating-and-publishing-canvases", 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 validating-and-publishing-canvasesInstalls 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 validating-and-publishing-canvases -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/canvas/skills/validating-and-publishing-canvases .github/skills/validating-and-publishing-canvases && 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 "validating-and-publishing-canvases" agent skill from https://github.com/PostHog/posthog/tree/master/products/canvas/skills/validating-and-publishing-canvases into .github/skills/validating-and-publishing-canvases/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "validating-and-publishing-canvases", 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 validating-and-publishing-canvases -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 validating-and-publishing-canvases --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/canvas/skills/validating-and-publishing-canvases .opencode/skills/validating-and-publishing-canvases && 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 "validating-and-publishing-canvases" agent skill from https://github.com/PostHog/posthog/tree/master/products/canvas/skills/validating-and-publishing-canvases into .opencode/skills/validating-and-publishing-canvases/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "validating-and-publishing-canvases", 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
validating-and-publishing-canvases- GitHub stars
- 40k
- Token cost
- ~3.2k tokens
- SKILL.md length
- 1,728 words
- Files
- 1
- Skills in repo
- 252
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Validate and publish a canvas source project safely: the source-project shape, declared capabilities, reading the current version pointer, iterating on validation diagnostics, guarded publishing…
- Works in 4 steps: Stage — canvas-draft-create with the… → Wait for the build — poll… → Preview — read the draft's files with… → …
- A canvas edit is ready to save
- SKILL.md covers The source project, Declare capabilities, Validate until clean and Publish guarded, plus 4 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Validating And Publishing Canvases is an agent skill from PostHog/posthog, published by the product's own GitHub organization. Validate and publish a canvas source project safely: the source-project shape, declared capabilities, reading the current version pointer, iterating on validation diagnostics, guarded publishing with expectedcurrentversionid, staging a draft build and promoting it, waiting out the queued build, and recovering from a 409 versionconflict or a 429 capacity limit without overwriting concurrent work. Use whenever a canvas edit is ready to save, a draft build is wanted, a canvas publish or build returns diagnostics or…
Its SKILL.md is about 3.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It works with PostHog and Model Context Protocol. 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
- A canvas edit is ready to save
- A draft build is wanted
- A canvas publish
- Build returns diagnostics
Example prompts
- “/validating-and-publishing-canvases”
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Stage — canvas-draft-create with the complete project (same shape, capabilities, and
- Wait for the build — poll canvas-builds-retrieve until the draft's build is terminal, the
- Preview — read the draft's files with canvas-source-retrieve passing its version_id; once
- Promote — when the user approved the draft or asked to go live; a draft the user asked to
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.
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
Validating And Publishing Canvases loads about 3.2k tokens when it runs. Until then it costs about 156 tokens; SKILL.md has 1,728 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 1,728 words (~3,180 tokens).
“A canvas's source lives in PostHog, versioned per publish. Publishing is guarded: every edit is based on a specific version, and the server refuses to overwrite newer work. Every publish queues a server-side build, and the canvas renders the last…”
- name
- validating-and-publishing-canvases
Files
Just SKILL.md in products/canvas/skills/validating-and-publishing-canvases 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
Validating And Publishing Canvases 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 |
|---|---|---|---|---|---|---|
| Validating And Publishing Canvases this skillPostHog/posthog | 40k | — | ~3.2k | Automated safety check: Pass | Custom licence | |
| Prod TelemetryUsefulSoftwareCo/executor | 4.1k | — | ~1.9k | Automated safety check: Pass | MIT | |
| Posthog Product Health Auditboardsesh/boardsesh | 164 | — | ~2.1k | Automated safety check: Pass | Apache-2.0 | |
| Exploring The WizardPostHog/wizard | 197 | — | ~2.2k | Automated safety check: Pass | MIT | |
| Metabase Prod Queryhaacked/dotfiles | 134 | — | ~1.5k | Automated safety check: Notes | None | |
| Ops Reporthaacked/dotfiles | 134 | — | ~8k | Automated safety check: Notes | None |
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Questions about Validating And Publishing Canvases
What does Validating And Publishing Canvases do?
Validate and publish a canvas source project safely: the source-project shape, declared capabilities, reading the current version pointer, iterating on validation diagnostics, guarded publishing…. Validating And Publishing Canvases is an agent skill from PostHog/posthog, published by the product's own GitHub organization. Validate and publish a canvas source project safely: the source-project shape, declared capabilities, reading the current version pointer, iterating on validation diagnostics, guarded publishing with expectedcurrentversionid, staging a draft build and promoting it, waiting out the queued build, and recovering from a 409 versionconflict or a 429 capacity limit without overwriting concurrent work.
When should I use Validating And Publishing Canvases?
Validating And Publishing Canvases fits situations like: A canvas edit is ready to save; A draft build is wanted; A canvas publish; build returns diagnostics.
How do I install Validating And Publishing Canvases in Claude Code?
Run `npx skills add PostHog/posthog --skill validating-and-publishing-canvases -a claude-code`. Or copy the skill folder (products/canvas/skills/validating-and-publishing-canvases in PostHog/posthog) into .claude/skills/validating-and-publishing-canvases in your project. Claude Code loads it when a task matches its description.
How do I install Validating And Publishing Canvases in Codex?
Run `npx skills add PostHog/posthog --skill validating-and-publishing-canvases -a codex`. Or copy the skill folder (products/canvas/skills/validating-and-publishing-canvases in PostHog/posthog) into .agents/skills/validating-and-publishing-canvases in your project. Codex loads it when a task matches its description.
Can I use Validating And Publishing Canvases 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 validating-and-publishing-canvases -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/validating-and-publishing-canvases, .gemini/skills/validating-and-publishing-canvases, .github/skills/validating-and-publishing-canvases and .opencode/skills/validating-and-publishing-canvases in your project.
What does Validating And Publishing Canvases need to run?
SKILL.md names no scripts, command-line tools or credentials: Validating And Publishing Canvases is instructions for the agent only.
Does Validating And Publishing Canvases 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 Validating And Publishing Canvases 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 Validating And Publishing Canvases use?
Validating And Publishing Canvases 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 Validating And Publishing Canvases use?
About 3.2k tokens (SKILL.md is roughly 13k 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 Validating And Publishing Canvases?
Skills that share tags, products or a category with Validating And Publishing Canvases: Prod Telemetry (UsefulSoftwareCo/executor, 4.1k stars), Posthog Product Health Audit (boardsesh/boardsesh, 164 stars), Exploring The Wizard (PostHog/wizard, 197 stars) and Metabase Prod Query (haacked/dotfiles, 134 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Validating And Publishing Canvases?
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.