Microsoft Copilot AI coding assistant

The trick with Claude Code, Cursor, or Copilot is not the model. It is the goalpost. Agents that start with a written plan (acceptance tests, an interface signature, a target file list) finish the work. Agents that start with “make it good” wander. These seven AI coding agent planning apps for desktop force the plan step before the code step.

What to look for

Quick comparison

App Best for Platforms Free plan Starting price/mo Rating
Microsoft Copilot Windows-first assistant with a plan pane Windows, macOS, Web Free tier Copilot Pro $10 4.5
Continue Rule-driven open-source IDE agent Windows, macOS, Linux Free forever Team $20 4.5
Aider Terminal agent with git-aware plans Windows, macOS, Linux Free forever Free 4.7
Cline VS Code agent with checkpoints Windows, macOS, Linux Free (BYO keys) Pay-per-token 4.6
Windsurf Cascade Structured multi-file plans Windows, macOS, Linux Free tier Pro $15 4.6
Zed Native editor with plan tools Windows, macOS, Linux Free forever Pro $20 4.4
Cursor Popular agent with plan mode Windows, macOS, Linux Free tier Pro $20 4.6

The apps

1. Microsoft Copilot – Best Windows-first coding assistant

Microsoft Copilot for Windows leans on GitHub Copilot inside VS Code and a plan pane that generates a checklist before the agent starts editing. Ask “add rate limiting to the payments endpoint” and it produces a list, waits for review, then executes.

Where it falls short: The plan pane is stronger in VS Code than in the Windows chat. Non-Microsoft stacks get less love.

Pricing:

Platforms: Windows, macOS, web (VS Code extension cross-platform).

Download: Copilot in VS Code

Bottom line: The starting point for anyone already on GitHub with a Copilot Pro seat.

2. Continue – Best rule-driven open-source agent

Continue is an open-source VS Code and JetBrains extension. It reads .continue/rules files, project-level AGENTS.md, and per-language config, then produces an explicit plan block before every edit. Bring your own keys or run against a local model.

Where it falls short: Config-heavy. Getting the rules right takes a few evenings.

Pricing:

Platforms: Windows, macOS, Linux (via VS Code or JetBrains).

Download: Continue

Bottom line: The right pick when the project has strong conventions and you want the agent to obey them.

3. Aider – Best terminal agent with plan discipline

Aider runs in the terminal, edits code, commits to git, and produces a plan when you enable --architect mode. The plan writes to a scratch file; you approve or edit; the coder model then executes against it.

Where it falls short: Terminal-first workflow. Not for people who want an IDE panel.

Pricing: Free and open source. Bring your own API key. Platforms: Windows, macOS, Linux.

Download: Aider

Bottom line: The favourite of engineers who already run everything from a terminal and want git commits per turn.

4. Cline – Best for checkpoints

Cline is a VS Code agent with strong checkpoint discipline. Every task produces a plan first, then a series of tool calls that write, run, and verify. Restore any checkpoint with one click.

Where it falls short: Pay-per-token. A messy afternoon can be surprisingly expensive.

Pricing:

Platforms: Windows, macOS, Linux via VS Code.

Download: Cline

Bottom line: The safest agent to hand a repo you care about, because restore is one click.

5. Windsurf Cascade – Best structured plans

Windsurf (formerly Codeium) is a full IDE built around Cascade, its planning agent. Cascade produces a multi-step plan spanning files, asks clarifying questions, and only writes code when the plan is confirmed.

Where it falls short: Full IDE swap. Coming from VS Code is a real move.

Pricing:

Platforms: Windows, macOS, Linux.

Download: Windsurf

Bottom line: Worth trying if plan quality matters more than IDE familiarity.

6. Zed – Best native performance

Zed is a Rust-based editor with an assistant panel that supports Anthropic, OpenAI, and local models via Ollama. Its Agent tools show the plan step and the file diffs before applying.

Where it falls short: Younger ecosystem. Extensions are catching up but not at parity with VS Code.

Pricing:

Platforms: Windows, macOS, Linux.

Download: Zed

Bottom line: For people who want the fastest editor on the market with a planning agent inside.

7. Cursor – Best-known agent with plan mode

Cursor is the household name. Plan Mode produces an explicit plan; Composer executes across files; Rules for AI hold conventions. Multi-model routing lets you send small tasks to a cheaper model.

Where it falls short: Free tier’s daily budget is thin. Pro is table stakes for real work.

Pricing:

Platforms: Windows, macOS, Linux.

Download: Cursor

Bottom line: The mainstream pick with the largest community.

How to pick

FAQ

What is a coding agent goalpost? A written spec (acceptance tests, function signatures, or an explicit checklist) that lives in the repo. The agent reads it and stops when it matches. Without one, agents wander.

Do I need a paid plan? For hobby work, no. Aider and Continue are fully free with your own API key. Cursor, Windsurf, and Copilot get significantly better on paid plans.

Which agent is best for large codebases? Continue and Cline handle large repos well because they respect rule files and edit incrementally. Cursor and Windsurf also do fine with the right ignore lists.

Can I use these offline? Continue, Cline, and Zed all work with local models via Ollama or LM Studio. The others are cloud-first.

Do they replace human review? No. Every agent still needs a pull request review. The plan step just makes the diff easier to reason about.