simyl

Coming Soon

AI Coding, Visualized

Most AI coding tools are black boxes. Simyl Code is different — watch every file read, every edit, every decision in real-time. Then automate entire feature implementations while you focus on what matters.

Join the waitlist to get early access

Technical Specs
PlatformVS Code 1.85+
AI ModelClaude Opus 4.6 via Claude Agent SDK
ToolsRead, Write, Edit, Bash, Glob, Grep, WebFetch, WebSearch
WorkflowsResearch (plan → implement → validate) and Plans (implement → validate)

The Problem with AI Coding Today

4 pain points

Current tools ask you to trade control for convenience. You shouldn't have to.

  • 01

    Black Box AI

    Most tools hide what the AI is doing. You submit a prompt, wait, and hope.
  • 02

    Context Switching

    Terminal-based tools pull you out of your editor, breaking flow state.
  • 03

    Manual Babysitting

    Complex tasks need constant back-and-forth. Implement, test, fix, repeat — each step manual.
  • 04

    Cost Anxiety

    API-based pricing with no visibility into token usage until the bill arrives.

See Everything. Control Everything. Automate Everything.

3 pillars

Simyl Code gives you full visibility into what the AI is doing, fine-grained control over every action, and the ability to automate multi-step workflows end to end.

  • 01

    Complete Transparency

    Watch every file read, every edit, every command in real-time. Expandable cards show exactly what the AI is doing and why.
  • 02

    Native VS Code Experience

    Drag, dock, and position the AI panel anywhere in your workspace. Automatic theme integration. Feels like part of your editor, not a bolt-on.
  • 03

    Structured Automation

    Multi-phase workflows implement entire features automatically. Start a task, approve the plan, come back to finished, validated code.

Built for How You Really Work

8 features

Every feature designed around real developer workflows, not marketing demos.

  • 01

    Complete Transparency

    Watch every file read, edit, and command as it happens. Expandable cards show inputs, outputs, and duration for every action.
  • 02

    Workflow Automation

    Multi-phase implementation from research to plan to code to validation. Start a workflow, approve the plan, come back to finished code.
  • 03

    Permission Control

    Every sensitive operation requires explicit approval. Countdown timers, danger warnings, and full previews keep you in control.
  • 04

    Live Cost & Context Tracking

    Real-time token usage, running cost in USD, and context window monitoring. No surprise bills.
  • 05

    Automatic Validation

    Built-in typecheck, lint, and test execution after implementation. Up to 3 automatic fix cycles if validation fails.
  • 06

    Crash Recovery

    Checkpoint-based recovery means you never lose progress, even if something goes wrong mid-workflow.
  • 07

    Real-Time Streaming

    Watch the AI think and respond character by character. See immediately if it’s on the right track and interrupt if needed.
  • 08

    Completion Reports

    Get a shareable summary after every workflow: features implemented, files changed, duration, and total cost. One-click copy for PRs and standups.

Why Simyl Code?

3 comparisons

  • vs. CLI tools

    All the power of Claude Code, with a beautiful visual interface and workflow automation.

  • vs. Copilot

    Copilot suggests lines of code. Simyl Code implements entire features.

  • vs. Cursor

    AI coding superpowers without switching editors.

Everything You Need

12 capabilities
Real-time streaming responses
Visual tool call cards with inline diffs
Live token, cost, and context tracking
Permission dialogs with countdown timers
Multi-phase workflow automation
Automatic typecheck, lint, and test validation
Deficiency auto-fixing (up to 3 cycles)
Checkpoint-based crash recovery
Activity dashboard with phase timeline
Completion reports with one-click copy
VS Code theme integration (light/dark/high contrast)
Keyboard shortcuts and drag-to-dock panel

Technical Details

6 specs
Specifications
PlatformVS Code 1.85+
AI ModelClaude Opus 4.6 via Claude Agent SDK
ToolsRead, Write, Edit, Bash, Glob, Grep, WebFetch, WebSearch
WorkflowsResearch (plan → implement → validate) and Plans (implement → validate)
ValidationAutomatic typecheck, lint, and test execution with up to 3 fix cycles
PricingUses your Anthropic API key (usage-based) or Claude subscription

Frequently Asked Questions

5 questions

  • What is Simyl Code?

    Simyl Code is a VS Code extension that makes AI coding assistance visual, transparent, and automated. You watch every file read, edit, and command in real time, and can automate entire feature implementations from research to validated code.

  • How is Simyl Code different from Copilot or Cursor?

    Copilot suggests lines of code — Simyl Code implements entire features through multi-phase workflows. And unlike Cursor, it runs inside VS Code, so you get AI coding superpowers without switching editors.

  • How much does Simyl Code cost?

    Simyl Code uses your own Anthropic API key (usage-based) or Claude subscription. Live token, cost, and context tracking means no surprise bills.

  • What are the requirements for Simyl Code?

    Simyl Code requires VS Code 1.85 or later and is powered by Claude via the Claude Agent SDK.

  • When will Simyl Code be available?

    Simyl Code is coming soon. Join the waitlist at simyl.ai to get early access when it launches.

Be the First to Try Simyl Code

Join the waitlist to get early access when we launch.

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