Layer · VK / TOOLS

The tool overview

Living document. Concrete suggestions for tools for product leaders and product organizations that want to work AI-first.

Half of this has probably been swapped out in six months. That’s the point.

How the list is organized

Ten categories. The first five match the minimum stack from Layer 5. The last five are product-management specific.

For each category: 3–5 tools I either use myself, have seen work well, or think are worth a look. Short descriptions. No affiliate links, no recommendations I don’t stand behind.

Three principles for choosing

If you’re facing a blank choice:

  1. Pick what your team is already close to. An okay tool the team uses 100% beats a perfect tool the team uses 30%.
  2. Pick open standards over closed ecosystems. MCP beats proprietary plugins. API-based integrations beat native-only.
  3. Pick what you can switch away from. If it takes you a day to migrate to an alternative, you’re in a good position. If it takes three months, you’re locked in.

What the list doesn’t cover

I’ve deliberately written the short version. There are hundreds of tools in every category. But more names rarely help, they just increase choice anxiety.

If you think an obvious tool is missing, write to me. I update the list continuously based on input.

Last updated 01.05.2026 Living document
Claude Code
Terminal-based agent from Anthropic. Strongest for longer, agentic tasks. My primary stack.
Code
Cursor
IDE-based. Good for people who want a visual environment. The switch to Claude models has raised the bar.
Code
Windsurf
Cursor competitor. Slightly more agentic. Worth trying.
Code
GitHub Copilot
Still the most widespread in enterprise. Less aggressive than the others.
Code
Replit Agent
Web-based. Good for quick prototypes without a local setup.
Code
Lovable
Prompt-to-app. Good for quick MVPs. Limits on complexity.
No-code
v0 (Vercel)
Components and UI flows. Stronger on the React ecosystem.
No-code
Bolt.new
Stackblitz-based. Runs directly in the browser.
No-code
Replit
Broader than the three above. Backend too.
No-code
MCP (Model Context Protocol)
Anthropic’s open standard. This is where the stack should converge over the next few years.
Context
Notion MCP
Direct access to your workspace. I use it intensively myself.
Context
LangChain / LlamaIndex
More dev-heavy frameworks. Relevant if you are building custom RAG.
Context
Custom MCP servers
Build your own for internal systems. It is easier than it sounds.
Context
LangSmith
Tracing, evals, debugging. The LangChain ecosystem.
Evals
Braintrust
Eval-focused. Good if you want to test prompts systematically.
Evals
Helicone
LLM observability. Logging, latency, cost tracking.
Evals
PostHog
Broader product analytics, but has AI features. I use it myself.
Evals
Cloudflare AI Gateway
Rate limiting, logging, a security layer between app and model.
Governance
Lakera
Prompt injection and data leak detection.
Governance
Credo AI
Governance platform for AI policies across the organization.
Governance
Snyk
Secrets and vulnerability scanning. Has expanded into AI-generated code.
Governance
Dovetail
Classic research platform with AI features for transcription and themes.
Discovery
Maze
Usability testing with AI summarization.
Discovery
Notably
AI-first research. Younger and more agentic than Dovetail.
Discovery
Looppanel
Interview analysis, very fast.
Discovery
Granola
My favorite. Takes notes live, formats them after the meeting. Privacy focus.
Meetings
Fathom
Broader meeting recorder. Good for Zoom/Meet.
Meetings
Tldv
Recorder + AI summary. Strong search across meetings.
Meetings
Otter
The veteran. Still good at transcription, less strong on AI summaries.
Meetings
Linear
Issues, specs, roadmap. Builds AI directly into the flow, the new standard for modern product teams.
Communication
Slack
De facto team chat. The MCP server makes it interesting for agent flows, a lot of context lives here.
Communication
Loom
Async video. Saves meetings. AI summaries make it useful without people watching the whole clip.
Communication
Notion
The shared workbench: docs, databases, specs. Covered above as a context layer; here it is the collaboration angle.
Communication
Cowork
Anthropic’s browser agent for non-developers. I use it myself for LinkedIn scheduling and DNS work.
Browser
Browser Use
Open source. More dev-heavy setup.
Browser
OpenAI Operator
ChatGPT-integrated. The most mature right now.
Browser
Claude (web/app)
My primary tool for longer writing and structuring.
Writing
ChatGPT
Good for quick drafts, especially with Custom GPTs.
Writing
Loops
Email platform with a good API. I use it for all my products.
Writing
Cursor Tab / Apple Intelligence
For micro-writing at the system level.
Writing