Borrowing it
Nothing to install: this file belongs to PostHog/wizard. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/PostHog/wizard/main/.claude/skills/wizard-development/SKILL.mdgit clone --depth 1 https://github.com/PostHog/wizardWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/posthog/wizard/wizard-development)<a href="https://agentmods.dev/skills/posthog/wizard/wizard-development"><img src="https://agentmods.dev/badge/skills/posthog/wizard/wizard-development/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/posthog/wizard/wizard-development"><img src="https://agentmods.dev/badge/skills/posthog/wizard/wizard-development.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Agent Snooping · line 188 Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00045 | $0.01874 |
| Opus 5.5 | $0.00018 | $0.00750 |
| Sonnet 5.5 | $0.00009 | $0.00375 |
| Haiku 4.5 | $0.00005 | $0.00187 |
Grade A, and why
wizard-development scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 14d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Wizard development
Ask who owns the concern and what they should need to understand to change it. Product knowledge belongs behind typed configuration boundaries; runner and UI infrastructure should consume those boundaries.
| Concern | Owner |
|---|---|
| Framework detection, context, env conventions | FrameworkConfig and framework configs |
| Integration instructions and orchestrator flows/tasks | context-mill |
| Programs: detection, runs, prerequisites and outcomes | One folder per program in programs, entered through its index.ts |
| Tools: commands that run no agent | tools, entered through @tools, with their screens in TUI tools |
| Program screens, flows and decks | TUI programs |
| Sequence, harness, model and effort selection | switchboard |
| Local tool permissions and scanner adapters | agent-interface, YARA hooks, Pi security |
| Scanner rules | warlock |
| Token admission and budgets | PostHog mint endpoint and ai-gateway |
| Screen resolution and rendering | TUI through its store |
| Layer import boundaries | One tsconfig project per layer, checked by pnpm typecheck, and ESLint rules for the paths the compiler can't see; see layer boundaries |
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 14d ago Changed 0652a57362ed
- 1mo ago Changed · +7 lines 11c74d411eb9
- 1mo ago Changed 8bd4f39ebebb
- 1mo ago Changed eb0ab70af618
- 1mo ago Changed b4013e26d9dc
- 1mo ago Changed · -49 lines · -40 tokens per session 16bdf632cae4
- 2mo ago First seen · 190 lines · 85 tokens per session scan A 5c88c9ace9ee
wizard-development is a skill published in the GitHub repository PostHog/wizard (201 stars, last pushed yesterday), licensed MIT. It adds 45 tokens to every session and 1,874 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
wizard-development compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| wizard-developmentPostHog/wizard | Skill | 201 | yesterday | MIT | A | 45 | Claude Code |
| cep-wizardlinkpranay-ai/context-engineering-protocol | Skill | 10 | 1mo ago | Apache-2.0 | A | 168 | Claude Code, Codex |
| suanfish-design-systemSuanFishXYY/suanfish-design-system | Skill | 8 | 4mo ago | none | A | 293 | Claude Code, Codex |
| analytics-productsickn33/agentic-awesome-skills | Skill | 49k | yesterday | MIT | A | 35 | Claude Code |
| cudaq-guideNVIDIA/skills | Skill | 3.9k | yesterday | Apache-2.0 | A | 26 | Claude Code, Codex |
| cudaq-guideNVIDIA/cuda-quantum | Skill | 1.2k | yesterday | Apache-2.0 | A | 26 | Claude Code, Codex |
| hr-onboardingnexu-io/html-anything | Skill | 9.4k | 24d ago | Apache-2.0 | A | 21 | Claude Code, Codex |