Prompt Optimizer
A local, citation-backed prompt linter for Claude Fable 5, Sonnet 4.6, Haiku 4.5, and Opus 4.8.
- IssueNo output contract
- SuggestionStable rules first
- Info≈ 1,240 tokens
- Output
- Findings · model advice
- Rules
- 13 · 2 citations
- Verified
Free, local-first utilities for people who build with AI. Each tool is bilingual, citation-backed, and designed to avoid sending private inputs to us.
Your inputs never leave this page — no sign-up, no upload, no model call.
A local, citation-backed prompt linter for Claude Fable 5, Sonnet 4.6, Haiku 4.5, and Opus 4.8.
A local-first builder for Claude Code permissions, hooks, model, and MCP settings, backed by official Claude Code documentation.
A citation-backed project-instructions generator that keeps shared AGENTS.md guidance and Claude-specific CLAUDE.md wiring explicit.
| Tool | You provide | You get | Runs |
|---|---|---|---|
| Prompt Optimizer | A prompt, surface and model | Severity-tiered findings, model advice | Browser |
| settings.json Builder | Permission mode, presets, hooks | settings.json | Browser |
| CLAUDE.md / AGENTS.md | Project name, stack, guardrails | AGENTS.md + CLAUDE.md | Browser |
No. The tools run in your browser and send nothing to our servers. Usage analytics, if you consent, count page views only.
Deterministic rules give the same answer every time and can cite their source. That makes them reviewable.
Each tool shows the date its rules were last verified against official documentation.
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