# Built an MCP server to fix token burn in OpenCode — cuts edit tokens by up to ~96% in Cursor too

**URL:** <https://forum.cursor.com/t/built-an-mcp-server-to-fix-token-burn-in-opencode-cuts-edit-tokens-by-up-to-96-in-cursor-too/171361>\
**Category:** Built for Cursor\
**Tags:** mcp\
**Created:** [September 11, 2026, 3:19pm UTC](https://forum.cursor.com/t/built-an-mcp-server-to-fix-token-burn-in-opencode-cuts-edit-tokens-by-up-to-96-in-cursor-too/171361 "2026-09-11T15:19:14Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Lorenzo\_Ferreira](https://avatars.discourse-cdn.com/v4/letter/l/dec6dc/32.png) [@Lorenzo\_Ferreira](https://forum.cursor.com/u/Lorenzo_Ferreira)\
**Post date:** [September 11, 2026, 3:19pm UTC](https://forum.cursor.com/t/built-an-mcp-server-to-fix-token-burn-in-opencode-cuts-edit-tokens-by-up-to-96-in-cursor-too/171361/1 "2026-09-11T15:19:14Z")

</div>

Hey everyone,

I do heavy multi-file refactoring in agentic setups (originally OpenCode, now testing across Cursor). The token arithmetic quickly became painful:

Every time the agent touches a 500-line file to change 3 lines, it reads the whole file, rewrites all 500 lines, and burns ~2,500 output tokens. Over a few multi-file refactors, fast requests and token budgets burn out on duplicate boilerplate.

To solve this, I built **Neuro Engine** —an MCP server that sits between the agent and your repository.

**How it works:**  
Instead of dumping full files back and forth, Neuro Engine performs skeleton analysis on your codebase. The AI agent only needs to emit a compact 15–30 token change blueprint, and Neuro Engine reconstructs and validates the change deterministically on disk.

Because it runs on standard **Model Context Protocol (MCP)**, it drops straight into Cursor’s MCP configuration with zero workflow changes.

**The verified numbers from testing:**

- **Up to ~96% token reduction** on surgical edits to large files (measured peak: 15–30 tokens vs 2,500+).
- **50%–65% reduction** on new file scaffolding.
- **80%–90%+ overall session savings** across multi-turn refactoring runs.
- **Estimated 5x–10x workload leverage:** Stretches a $20/mo plan across 3,000+ completed edits.
- **Kills lazy truncation:** Models can never delete your working code with `// ...rest unchanged...` because they only touch targeted functions.
- **Zero broken repos:** Backed by an instant revert engine (\<2ms rollback) if an edit fails syntax checks.

It supports 16+ languages (Python, TypeScript, JS, Go, Rust, C/C++, C#, Java, SQL, Vue, Svelte, etc.) and wires in via a single config line.

**Founder Pre-Order:**  
Official stable release drops on **Tuesday, Sept 15, 2026** (early canary builds are being pushed to founders in Discord sooner).

I’ve opened the first **1,000 lifetime founder passes for a flat $100 (R1,620)** before shifting to $29/month subscriptions. Includes an objective 30-day money-back guarantee based on your built-in `neuro-engine stats` telemetry.

Site: [https://neuro-engine.netlify.app](https://neuro-engine.netlify.app)

Would love feedback from other Cursor users on your current MCP setups and what languages break your diffs most often!

---

<div class="post-metadata">

**Author:** ![discourse\_ai\_spam](https://avatars.discourse-cdn.com/v4/letter/d/c68b51/32.png) [@discourse\_ai\_spam](https://forum.cursor.com/u/discourse_ai_spam)\
**Post date:** [September 11, 2026, 3:19pm UTC](https://forum.cursor.com/t/built-an-mcp-server-to-fix-token-burn-in-opencode-cuts-edit-tokens-by-up-to-96-in-cursor-too/171361/2 "2026-09-11T15:19:17Z")

</div>



---

<div class="post-metadata">

**Author:** ![system](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/system/32/99069_2.png) [@system](https://forum.cursor.com/u/system)\
**Post date:** [September 11, 2026, 3:21pm UTC](https://forum.cursor.com/t/built-an-mcp-server-to-fix-token-burn-in-opencode-cuts-edit-tokens-by-up-to-96-in-cursor-too/171361/5 "2026-09-11T15:21:24Z")

</div>