Agent Plan Visualizer - An Open-Source MCP Server by Sixth
Most developer tooling work still happens through a UI a human drives. Overture MCP server moves it into the conversation instead. Agent Plan Visualizer - An Open-Source MCP Server by Sixth.
The server ships on npm as overture-mcp, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.
The server publishes 12 tools. What each one is for:
submit_plan — Submit complete plan as XMLget_approval — Wait for user approval (blocks until approved)update_node_status — Update node status + output during executionplan_completed — Mark plan as successfully completedplan_failed — Mark plan as failed with error messagecheck_rerun — Check if user requested a node re-runcheck_pause — Check if user paused executionget_resume_info — Get full context for resuming a paused planrequest_plan_update — Request incremental plan modificationscreate_new_plan — Signal creation of a new planget_usage_instructions — Get agent-specific instructionsCursor — More Agents (Cline, Copilot, Sixth AI)Configuration is passed through the environment: OVERTURE_HTTP_PORT, OVERTURE_WS_PORT, OVERTURE_AUTO_OPEN. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
Before you can approve, Overture shows what's needed: - Empty required fields — counted per node - Branch selections — which decisions are pending - Progress indicator — visual completion tracking - Expandable items — click to see details - Color coding — Green (done) / Orange (pending) The Approve button stays disabled until all requirements are met. ---
This sits in the developer tooling group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Overture's toolset — submit_plan, get_approval, update_node_status and 9 more — is a fair guide to whether it matches your workflow. It is maintained by sixhq; worth a glance at recent repository activity before you build anything load-bearing on it.
We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.
| Tool | What it does |
|---|---|
| submit_plan | Submit complete plan as XML |
| get_approval | Wait for user approval (blocks until approved) |
| update_node_status | Update node status + output during execution |
| plan_completed | Mark plan as successfully completed |
| plan_failed | Mark plan as failed with error message |
| check_rerun | Check if user requested a node re-run |
| check_pause | Check if user paused execution |
| get_resume_info | Get full context for resuming a paused plan |
| request_plan_update | Request incremental plan modifications |
| create_new_plan | Signal creation of a new plan |
| get_usage_instructions | Get agent-specific instructions |
| Cursor | <details> <summary><strong>More Agents (Cline, Copilot, Sixth AI)</strong></summary> |
{
"mcpServers": {
"overture": {
"command": "npx",
"args": ["-y", "overture-mcp"],
"env": {
"OVERTURE_HTTP_PORT": "your-value",
"OVERTURE_WS_PORT": "your-value",
"OVERTURE_AUTO_OPEN": "your-value"
}
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
Before you can approve, Overture shows what's needed: - Empty required fields — counted per node - Branch selections — which decisions are pending - Progress indicator — visual completion tracking - Expandable items — click to see details - Color coding — Green (done) / Orange (pending) The Approve button stays disabled until all requirements are met. ---
| Variable | Description | Required |
|---|---|---|
| OVERTURE_HTTP_PORT | Configuration value read at startup. | Optional |
| OVERTURE_WS_PORT | Configuration value read at startup. | Optional |
| OVERTURE_AUTO_OPEN | Configuration value read at startup. | Optional |
Kill hallucinated APIs — version-accurate, up-to-date library documentation injected straight into context.
Microsoft's official browser automation server — drive a real browser through the accessibility tree, no screenshots needed.
GitHub's official server — repos, issues, pull requests, Actions and code security, straight from your assistant.
Issue tracking at the speed of conversation — Linear's official hosted server with OAuth and zero install.
Local repository surgery — status, diffs, commits, branches and history for any repo on disk.
Timezone sanity for AI — current time anywhere and correct conversions, without the model doing date math.