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Synapse CLI

AI-powered coding assistant. Cloud brain, local hands.

Powered by Cloudflare · Built by Bowen Liu

v0.1.1
Quick Start
Install
npm install -g synapse-cli
Login & Start
synapse login
synapse
Architecture
Local CLI
Terminal UI
Tool Executor
Permission Control
WebSocket
Cloud Container
Kimi K2.5 · 256k
Context Compression
Streaming Response
Features
🔧
7 Built-in Tools
read, write, edit, grep, glob, list_dir, bash
🔒
Permission Control
y/n/trust per tool, bash never trustable
⚡
Streaming Output
Real-time token streaming via WebSocket
🧠
Smart Context
LLM-powered compression, never truncates
🌐
Web Search & Fetch
Cloud-side Serper + Scrapling browser
📊
Usage Tracking
/usage command for token consumption

Releases

v0.1.1 2026-04-10 Improvements
  • NEW System prompt overhaul — LLM now asks clarifying questions before complex tasks instead of guessing
  • NEW Permission prompt shows full action description: "Read ../file.html (using tool: read_file)"
  • NEW Container versioning — new deploys route to fresh instances, old sessions get 10min grace period
  • FIX User deny now stops ALL remaining tool calls in the batch, not just the denied one
  • FIX Permission input requires Enter to confirm — no more accidental single-keypress execution
  • FIX Thinking spinner now shows consistently between all tool calls, not just the first one
  • FIX Playwright browser path fixed for Container (PLAYWRIGHT_BROWSERS_PATH + libXfixes)
  • IMPROVE Cloud tool results (web_search/web_fetch) show brief status only, full content goes to LLM
v0.1.0 2026-04-10 Initial Release
  • NEW Core architecture — cloud-powered LLM with local tool execution via WebSocket
  • NEW 7 built-in tools: read_file, write_file, edit_file, grep, glob, list_dir, bash
  • NEW Permission model — auto-approve reads in project, bash never trustable, destructive commands blocked
  • NEW LLM streaming — real-time token output via WebSocket
  • NEW Context compression — LLM-powered summarization at 80% capacity, reactive compact on overflow
  • NEW Session commands: /compact, /context, /tools, /usage, /quit
  • NEW Cloud tools: web_search (Serper) and web_fetch (Scrapling + Playwright)
  • FIX Arrow keys in input — switched permission prompt from raw mode to readline
  • FIX Streaming tool_calls arguments truncation — re-serialize JSON after parse
  • FIX 400 error from extra fields in assistant messages — clean before re-send to API
  • IMPROVE Cloud tool results show brief status in terminal, full content only sent to LLM

Model: Kimi K2.5 · Context: 256k tokens · Deployed on Cloudflare Workers + Containers