Feature Flag
speakeasy-api/gram
A skill your agent uses when gating a feature behind a flag, dogfooding or gradually rolling out a change, choosing between productfeatures and PostHog feature flags, adding or checking a product…
Guides safe changes to the TaxonomicFilter, PostHog's picker for events, actions, properties, cohorts, and more.
Install Modifying Taxonomic Filter
$ npx skills add PostHog/posthog --skill modifying-taxonomic-filter -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install PostHog/posthog modifying-taxonomic-filter --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/modifying-taxonomic-filter .claude/skills/modifying-taxonomic-filter && 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 "modifying-taxonomic-filter" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/modifying-taxonomic-filter into .claude/skills/modifying-taxonomic-filter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modifying-taxonomic-filter", 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/modifying-taxonomic-filterType 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 modifying-taxonomic-filter -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install PostHog/posthog modifying-taxonomic-filter --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/modifying-taxonomic-filter .agents/skills/modifying-taxonomic-filter && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "modifying-taxonomic-filter" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/modifying-taxonomic-filter into .agents/skills/modifying-taxonomic-filter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modifying-taxonomic-filter", 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 modifying-taxonomic-filter -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install PostHog/posthog modifying-taxonomic-filter --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/modifying-taxonomic-filter .cursor/skills/modifying-taxonomic-filter && 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 "modifying-taxonomic-filter" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/modifying-taxonomic-filter into .cursor/skills/modifying-taxonomic-filter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modifying-taxonomic-filter", 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/modifying-taxonomic-filter--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 modifying-taxonomic-filter -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install PostHog/posthog modifying-taxonomic-filter --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/modifying-taxonomic-filter .gemini/skills/modifying-taxonomic-filter && 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 "modifying-taxonomic-filter" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/modifying-taxonomic-filter into .gemini/skills/modifying-taxonomic-filter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modifying-taxonomic-filter", 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 modifying-taxonomic-filterInstalls 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 modifying-taxonomic-filter -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/modifying-taxonomic-filter .github/skills/modifying-taxonomic-filter && 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 "modifying-taxonomic-filter" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/modifying-taxonomic-filter into .github/skills/modifying-taxonomic-filter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modifying-taxonomic-filter", 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 modifying-taxonomic-filter -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 modifying-taxonomic-filter --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/modifying-taxonomic-filter .opencode/skills/modifying-taxonomic-filter && 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 "modifying-taxonomic-filter" agent skill from https://github.com/PostHog/posthog/tree/master/.agents/skills/modifying-taxonomic-filter into .opencode/skills/modifying-taxonomic-filter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modifying-taxonomic-filter", 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
modifying-taxonomic-filter- GitHub stars
- 40k
- Token cost
- ~2.8k tokens
- SKILL.md length
- 1,099 words
- Files
- 7 (incl. references)
- Skills in repo
- 252
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Guides safe changes to the TaxonomicFilter, PostHog's picker for events, actions, properties, cohorts, and more.
- Works in 3 steps: Changes that demote items users actually… → There are two live surfaces, and the → Search is the main selection path. The…
- Adding features
- SKILL.md covers Product reality (last…, Telemetry is a contract, Two surfaces and Mirroring changes across…, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Modifying Taxonomic Filter is an agent skill from PostHog/posthog, published by the product's own GitHub organization. Guides safe changes to the TaxonomicFilter, PostHog's picker for events, actions, properties, cohorts, and more. Use when adding features, fixing bugs, improving search or loading performance, or refactoring the classic picker, rebuild menu, or headless filter panel. Covers real selection behavior, two live surfaces, shared telemetry, the conditional Postgres search plan, and result reveal rules.
Its SKILL.md is about 2.8k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including reference files (for example `references/architecture.md`, `references/call-sites-and-blast-radius.md` and `references/common-pitfalls.md`).
It sits in Development, covering Refactoring. It works with PostHog and PostgreSQL. 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 features
- Improving search
- Loading performance
- Refactoring the classic picker
Example prompts
- “Use the modifying-taxonomic-filter skill to guide safe changes to the TaxonomicFilter, PostHog's picker for events, actions, properties, cohorts…”
- “/modifying-taxonomic-filter”
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- Changes that demote items users actually pick are regressions, even
- There are two live surfaces, and the
- Search is the main selection path. The definition endpoints select a
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 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
Modifying Taxonomic Filter loads about 2.8k tokens when it runs, and up to ~8.4k if it reads all its reference files. Until then it costs about 107 tokens; SKILL.md has 1,099 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 1,099 words (~2,819 tokens).
“The TaxonomicFilter is the picker users hit to choose any "thing PostHog knows about" — events, properties, actions, cohorts, groups. It's the on-ramp into almost every analytics and replay configuration. Code lives in frontend/src/lib/components/TaxonomicFilter/.”
- name
- modifying-taxonomic-filter
Files
SKILL.md and 6 other files (references) in .agents/skills/modifying-taxonomic-filter of PostHog/posthog.
- SKILL.md
- references/architecture.md
- references/call-sites-and-blast-radius.md
- references/common-pitfalls.md
- references/performance.md
- references/refreshing-product-reality.md
- references/testing-patterns.md
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
Modifying Taxonomic Filter 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 |
|---|---|---|---|---|---|---|
| Modifying Taxonomic Filter this skillPostHog/posthog | 40k | — | ~2.8k | Automated safety check: Pass | Custom licence | |
| Feature Flagspeakeasy-api/gram | 273 | — | ~2.6k | Automated safety check: Pass | AGPL-3.0 | |
| Heroku To AWSaws/agent-toolkit-for-aws | 2.8k | — | ~7.2k | Automated safety check: Pass | Apache-2.0 | |
| Guidelinesakash-network/node | 1.1k | 20 repos | ~577 | Automated safety check: Pass | MIT | |
| Component Refactoringlangflow-ai/langflow | 155k | — | ~3.5k | Automated safety check: Pass | MIT | |
| Migrate Core Code to Submodulestinyhumansai/openhuman | 42k | — | ~2.6k | Automated safety check: Pass | GPL-3.0 |
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Related
Works with
Categories
Questions about Modifying Taxonomic Filter
What does Modifying Taxonomic Filter do?
Guides safe changes to the TaxonomicFilter, PostHog's picker for events, actions, properties, cohorts, and more. Modifying Taxonomic Filter is an agent skill from PostHog/posthog, published by the product's own GitHub organization. Guides safe changes to the TaxonomicFilter, PostHog's picker for events, actions, properties, cohorts, and more.
When should I use Modifying Taxonomic Filter?
Modifying Taxonomic Filter fits situations like: adding features; improving search; loading performance; refactoring the classic picker.
How do I install Modifying Taxonomic Filter in Claude Code?
Run `npx skills add PostHog/posthog --skill modifying-taxonomic-filter -a claude-code`. Or copy the skill folder (.agents/skills/modifying-taxonomic-filter in PostHog/posthog) into .claude/skills/modifying-taxonomic-filter in your project. Claude Code loads it when a task matches its description.
How do I install Modifying Taxonomic Filter in Codex?
Run `npx skills add PostHog/posthog --skill modifying-taxonomic-filter -a codex`. Or copy the skill folder (.agents/skills/modifying-taxonomic-filter in PostHog/posthog) into .agents/skills/modifying-taxonomic-filter in your project. Codex loads it when a task matches its description.
Can I use Modifying Taxonomic Filter 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 modifying-taxonomic-filter -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/modifying-taxonomic-filter, .gemini/skills/modifying-taxonomic-filter, .github/skills/modifying-taxonomic-filter and .opencode/skills/modifying-taxonomic-filter in your project.
What does Modifying Taxonomic Filter need to run?
SKILL.md names no scripts, command-line tools or credentials: Modifying Taxonomic Filter is instructions for the agent only.
Does Modifying Taxonomic Filter 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 Modifying Taxonomic Filter 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 Modifying Taxonomic Filter use?
Modifying Taxonomic Filter 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 Modifying Taxonomic Filter use?
About 2.8k tokens (SKILL.md is roughly 11k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 5.6k tokens, read only when the agent opens those files.
What are the alternatives to Modifying Taxonomic Filter?
Skills that share tags, products or a category with Modifying Taxonomic Filter: Feature Flag (speakeasy-api/gram, 273 stars), Heroku To AWS (aws/agent-toolkit-for-aws, 2.8k stars), Guidelines (akash-network/node, 1.1k stars) and Component Refactoring (langflow-ai/langflow, 155k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Modifying Taxonomic Filter?
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.