Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add 0x-Professor/Agent-Skills-Hub --skill web-stack-plannergit clone --depth 1 https://github.com/0x-Professor/Agent-Skills-HubWrote 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/0x-professor/agent-skills-hub/web-stack-planner)<a href="https://agentmods.dev/skills/0x-professor/agent-skills-hub/web-stack-planner"><img src="https://agentmods.dev/badge/skills/0x-professor/agent-skills-hub/web-stack-planner/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/0x-professor/agent-skills-hub/web-stack-planner"><img src="https://agentmods.dev/badge/skills/0x-professor/agent-skills-hub/web-stack-planner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00024 | $0.00601 |
| Opus 5 | $0.00012 | $0.00300 |
| Sonnet 5 | $0.00005 | $0.00120 |
| Haiku 4.5 | $0.00002 | $0.00060 |
Grade A, and why
web-stack-planner 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 9d 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.
What it actually says
Web Stack Planner
Objective
Capture a complete web project brief and produce a validated project-config.json
that all downstream web-builder skills consume.
Required Workflow
- Ask the user for project name, project type, target audience, authentication needs, and whether any codebase already exists.
- Present frontend framework choices:
- React
- Next.js
- Vue
- Nuxt
- SvelteKit
- Angular
- Astro
- plain HTML/CSS/JS
- Present backend/API choices:
- Node.js/Express
- FastAPI
- Django
- Laravel
- Go/Gin
- Rails
- Supabase Edge Functions
- serverless-only
- Present database choices:
- PostgreSQL
- MySQL
- MongoDB
- SQLite
- Supabase
- PlanetScale
- Turso
- Redis (as cache)
- Firebase
- Present CSS/design system choices:
- Tailwind CSS
- Shadcn/ui
- Chakra UI
- Material UI
- Ant Design
- Mantine
- DaisyUI
- vanilla CSS
- Ask if they need integrations for auth, payments, email, file storage, and i18n:
- Auth: Clerk, Auth.js, Supabase Auth, custom JWT
- Payments: Stripe, Paddle, LemonSqueezy
- Email: Resend, SendGrid
- Storage: S3, Supabase Storage, Cloudflare R2
- Ask deployment target:
- Vercel
- Netlify
- Fly.io
- Railway
- Render
- AWS
- GCP
- Azure
- DigitalOcean
- Cloudflare Pages
- Run
scripts/stack_planner.pyto validate and write the canonicalproject-config.json.
Execution
python skills/web-stack-planner/scripts/stack_planner.py --input <brief.json> --output <out.json> --format json
Output
project-config.json- Script result file (
json,md, orcsv) withstatus,summary,artifacts, anddetails
References
references/tools.md
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.
- 9d ago First seen · 96 lines · 24 tokens per session scan A ab752a4b0bb3
web-stack-planner is a skill published in the GitHub repository 0x-Professor/Agent-Skills-Hub (10 stars, last pushed 6mo ago), licensed Apache-2.0. It adds 24 tokens to every session and 601 once invoked, about $0.0001 per session on Opus 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 2026-08-31.
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