Pp Posthog
mvanhorn/printing-press-library
Every PostHog resource in one CLI — with offline search, agent-native output, and cross-resource analytics no...
Investigate LLM spend in PostHog — total cost over time, cost by model, provider, user, trace, or custom dimension, token and cache-hit economics, and cost regressions.
Install Exploring LLM Costs
$ npx skills add PostHog/posthog --skill exploring-llm-costs -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install PostHog/posthog exploring-llm-costs --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/ai_observability/skills/exploring-llm-costs .claude/skills/exploring-llm-costs && 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 "exploring-llm-costs" agent skill from https://github.com/PostHog/posthog/tree/master/products/ai_observability/skills/exploring-llm-costs into .claude/skills/exploring-llm-costs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "exploring-llm-costs", 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/ai_observability/skills/exploring-llm-costsType 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 exploring-llm-costs -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install PostHog/posthog exploring-llm-costs --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/ai_observability/skills/exploring-llm-costs .agents/skills/exploring-llm-costs && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "exploring-llm-costs" agent skill from https://github.com/PostHog/posthog/tree/master/products/ai_observability/skills/exploring-llm-costs into .agents/skills/exploring-llm-costs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "exploring-llm-costs", 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 exploring-llm-costs -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install PostHog/posthog exploring-llm-costs --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/ai_observability/skills/exploring-llm-costs .cursor/skills/exploring-llm-costs && 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 "exploring-llm-costs" agent skill from https://github.com/PostHog/posthog/tree/master/products/ai_observability/skills/exploring-llm-costs into .cursor/skills/exploring-llm-costs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "exploring-llm-costs", 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/ai_observability/skills/exploring-llm-costs--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 exploring-llm-costs -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install PostHog/posthog exploring-llm-costs --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/ai_observability/skills/exploring-llm-costs .gemini/skills/exploring-llm-costs && 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 "exploring-llm-costs" agent skill from https://github.com/PostHog/posthog/tree/master/products/ai_observability/skills/exploring-llm-costs into .gemini/skills/exploring-llm-costs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "exploring-llm-costs", 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 exploring-llm-costsInstalls 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 exploring-llm-costs -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/ai_observability/skills/exploring-llm-costs .github/skills/exploring-llm-costs && 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 "exploring-llm-costs" agent skill from https://github.com/PostHog/posthog/tree/master/products/ai_observability/skills/exploring-llm-costs into .github/skills/exploring-llm-costs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "exploring-llm-costs", 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 exploring-llm-costs -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 exploring-llm-costs --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/ai_observability/skills/exploring-llm-costs .opencode/skills/exploring-llm-costs && 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 "exploring-llm-costs" agent skill from https://github.com/PostHog/posthog/tree/master/products/ai_observability/skills/exploring-llm-costs into .opencode/skills/exploring-llm-costs/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "exploring-llm-costs", 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
exploring-llm-costs- GitHub stars
- 40k
- Token cost
- ~2.9k tokens
- SKILL.md length
- 1,269 words
- Files
- 7 (incl. references)
- Skills in repo
- 252
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Investigate LLM spend in PostHog — total cost over time, cost by model, provider, user, trace, or custom dimension, token and cache-hit economics, and cost regressions.
- The user asks how much are we spending on LLMs?
- SKILL.md covers Tools, Core rules, Workflow: total spend in a… and Workflow: cost breakdowns, plus 8 more sections
- Reaches us.posthog.com
- Which model / user / feature is most expensive?
What it does
Exploring LLM Costs is an agent skill from PostHog/posthog, published by the product's own GitHub organization. Investigate LLM spend in PostHog — total cost over time, cost by model, provider, user, trace, or custom dimension, token and cache-hit economics, and cost regressions. Use when the user asks "how much are we spending on LLMs?", "which model / user / feature is most expensive?", "why did cost spike?", wants to build a cost dashboard or alert, or pastes a trace URL and asks about its cost.
Its SKILL.md is about 2.9k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including reference files (for example `references/breakdown-patterns.md`, `references/cache-accounting.md` and `references/cost-properties.md`).
It sits in AI & LLM Engineering, covering LLM cost and token optimization. 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
- The user asks how much are we spending on LLMs?
- Which model / user / feature is most expensive?
- Why did cost spike?
- Wants to build a cost dashboard
Example prompts
- “how much are we spending on LLMs?”
- “which model / user / feature is most expensive?”
- “why did cost spike?”
- “/exploring-llm-costs”
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 json).
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:
us.posthog.com
Also links to:
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
Exploring LLM Costs loads about 2.9k tokens when it runs, and up to ~8.5k if it reads all its reference files. Until then it costs about 103 tokens; SKILL.md has 1,269 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 1,269 words (~2,857 tokens).
“PostHog attaches per-call cost metadata to every $ai_generation and $ai_embedding event at ingestion time. Every cost question reduces to an aggregation over those two event types — the interesting variation is only in how you group, filter, and compare.”
- name
- exploring-llm-costs
Files
SKILL.md and 6 other files (references) in products/ai_observability/skills/exploring-llm-costs of PostHog/posthog.
- SKILL.md
- references/breakdown-patterns.md
- references/cache-accounting.md
- references/cost-properties.md
- references/cost-sources.md
- references/materializing.md
- references/regression-debugging.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
Exploring LLM Costs 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 |
|---|---|---|---|---|---|---|
| Exploring LLM Costs this skillPostHog/posthog | 40k | — | ~2.9k | Automated safety check: Pass | Custom licence | |
| Pp Posthogmvanhorn/printing-press-library | 2.1k | — | ~3.2k | Automated safety check: Notes | Apache-2.0 | |
| Context Compressionguanyang/open-agent-hub | 977 | 2 repos | ~4.6k | Automated safety check: Pass | MIT | |
| Bounty Hunter1sadjlk/bounty-hunter-skill | 282 | 1 repos | ~761 | Automated safety check: Pass | MIT | |
| Skill Shortenerluongnv89/asm | 954 | — | ~3.8k | Automated safety check: Notes | MIT | |
| Fleet Auditoralexgreensh/token-optimizer | 2.5k | — | ~1.7k | Automated safety check: Pass | Custom licence |
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Refactor a too-long SKILL.md by progressive disclosure: measure token cost, classify every section KEEP/CUT/MOVE, shorten the body into references/ and scripts/, verify nothing was lost.
Fleet Auditor
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Cross-system agent token/cost audit (Claude Code, Codex, OpenClaw, Hermes, OpenCode): idle burns, model misrouting, config bloat, with dollar savings.
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Related
Works with
Categories
Questions about Exploring LLM Costs
What does Exploring LLM Costs do?
Investigate LLM spend in PostHog — total cost over time, cost by model, provider, user, trace, or custom dimension, token and cache-hit economics, and cost regressions. Exploring LLM Costs is an agent skill from PostHog/posthog, published by the product's own GitHub organization. Investigate LLM spend in PostHog — total cost over time, cost by model, provider, user, trace, or custom dimension, token and cache-hit economics, and cost regressions.
When should I use Exploring LLM Costs?
Exploring LLM Costs fits situations like: the user asks how much are we spending on LLMs?; which model / user / feature is most expensive?; why did cost spike?; wants to build a cost dashboard.
How do I install Exploring LLM Costs in Claude Code?
Run `npx skills add PostHog/posthog --skill exploring-llm-costs -a claude-code`. Or copy the skill folder (products/ai_observability/skills/exploring-llm-costs in PostHog/posthog) into .claude/skills/exploring-llm-costs in your project. Claude Code loads it when a task matches its description.
How do I install Exploring LLM Costs in Codex?
Run `npx skills add PostHog/posthog --skill exploring-llm-costs -a codex`. Or copy the skill folder (products/ai_observability/skills/exploring-llm-costs in PostHog/posthog) into .agents/skills/exploring-llm-costs in your project. Codex loads it when a task matches its description.
Can I use Exploring LLM Costs 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 exploring-llm-costs -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/exploring-llm-costs, .gemini/skills/exploring-llm-costs, .github/skills/exploring-llm-costs and .opencode/skills/exploring-llm-costs in your project.
What does Exploring LLM Costs need to run?
SKILL.md names no scripts, command-line tools or credentials: Exploring LLM Costs is instructions for the agent only.
Does Exploring LLM Costs access the network?
SKILL.md names 2 domains. In commands or code: us.posthog.com; the agent is likely to contact it when it follows the instructions. As links in the text: posthog.com. This is read from the text; nothing was executed.
Is Exploring LLM Costs 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 Exploring LLM Costs use?
Exploring LLM Costs 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 Exploring LLM Costs use?
About 2.9k 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 Exploring LLM Costs?
Skills that share tags, products or a category with Exploring LLM Costs: Pp Posthog (mvanhorn/printing-press-library, 2.1k stars), Context Compression (guanyang/open-agent-hub, 977 stars), Bounty Hunter (1sadjlk/bounty-hunter-skill, 282 stars) and Skill Shortener (luongnv89/asm, 954 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Exploring LLM Costs?
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.