From d2d6a8944823678c05feadda9f2b5d7153cea2a8 Mon Sep 17 00:00:00 2001
From: Danila Poyarkov <dev@dannote.net>
Date: Wed, 22 Apr 2026 18:01:52 +0300
Subject: [PATCH] fix(lint): resolve all linting warnings and errors
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- scene-graph: replace non-null assertion with guard
- figma-api: console.log → console.warn for notify()
- editor/nodes: replace non-null assertion with guard
- automation/server: console.log → console.debug
- mcp/stdio: proper Buffer/ArrayBuffer/Buffer[] UTF-8 decoding
- design-jsx/render: suppress no-implied-eval for Function constructor

0 warnings, 0 errors.
---
 packages/core/src/design-jsx/render.ts | 1 +
 packages/core/src/editor/nodes.ts      | 4 ++--
 packages/core/src/figma-api/index.ts   | 2 +-
 packages/core/src/scene-graph/index.ts | 3 ++-
 packages/mcp/src/stdio.ts              | 6 +++++-
 src/automation/server.ts               | 2 +-
 6 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/packages/core/src/design-jsx/render.ts b/packages/core/src/design-jsx/render.ts
index 589d314dc..930b869c2 100644
--- a/packages/core/src/design-jsx/render.ts
+++ b/packages/core/src/design-jsx/render.ts
@@ -36,6 +36,7 @@ export function buildComponent(jsxString: string): () => unknown {
     code = transform(`${aliases}\nreturn function __render() { return <>${trimmed}</> }`, opts).code
   }
 
+  // eslint-disable-next-line typescript-eslint/no-implied-eval -- sucrase output must be evaluated at runtime
   return new Function('React', code)(React) as () => unknown
 }
 
diff --git a/packages/core/src/editor/nodes.ts b/packages/core/src/editor/nodes.ts
index f525ff512..bd65ee92b 100644
--- a/packages/core/src/editor/nodes.ts
+++ b/packages/core/src/editor/nodes.ts
@@ -205,8 +205,8 @@ export function createNodeActions(ctx: EditorContext) {
     if (!nudgeOriginals) {
       nudgeOriginals = new Map()
       for (const id of movable) {
-        const node = ctx.graph.getNode(id)!
-        nudgeOriginals.set(id, { x: node.x, y: node.y })
+        const node = ctx.graph.getNode(id)
+        if (node) nudgeOriginals.set(id, { x: node.x, y: node.y })
       }
     }
 
diff --git a/packages/core/src/figma-api/index.ts b/packages/core/src/figma-api/index.ts
index 5978d2b3a..dc22f011d 100644
--- a/packages/core/src/figma-api/index.ts
+++ b/packages/core/src/figma-api/index.ts
@@ -384,7 +384,7 @@ export class FigmaAPI implements NodeProxyHost {
   }
 
   notify(message: string): { cancel: () => void } {
-    if (typeof console !== 'undefined') console.log(`[figma.notify] ${message}`)
+    if (typeof console !== 'undefined') console.warn(`[figma.notify] ${message}`)
     // eslint-disable-next-line no-empty-function
     return { cancel() {} }
   }
diff --git a/packages/core/src/scene-graph/index.ts b/packages/core/src/scene-graph/index.ts
index 2ea633130..817f142bc 100644
--- a/packages/core/src/scene-graph/index.ts
+++ b/packages/core/src/scene-graph/index.ts
@@ -811,8 +811,9 @@ export class SceneGraph {
     if (cached) return cached
 
     const node = this.getNode(id)
+    if (!node) return { x: 0, y: 0 }
 
-    const result = getAbsolutePosition(node!, this)
+    const result = getAbsolutePosition(node, this)
     this.absPosCache.set(id, result)
     return result
   }
diff --git a/packages/mcp/src/stdio.ts b/packages/mcp/src/stdio.ts
index 929261ed4..b3598d9ab 100644
--- a/packages/mcp/src/stdio.ts
+++ b/packages/mcp/src/stdio.ts
@@ -32,7 +32,11 @@ function connect() {
 
   ws.on('message', (raw) => {
     try {
-      const msg = JSON.parse(String(raw)) as {
+      let text: string
+      if (Buffer.isBuffer(raw)) text = raw.toString('utf8')
+      else if (Array.isArray(raw)) text = Buffer.concat(raw).toString('utf8')
+      else text = Buffer.from(raw).toString('utf8')
+      const msg = JSON.parse(text) as {
         type: string
         id?: string
         token?: string
diff --git a/src/automation/server.ts b/src/automation/server.ts
index 51434346a..547ecb168 100644
--- a/src/automation/server.ts
+++ b/src/automation/server.ts
@@ -211,7 +211,7 @@ export function connectAutomation(getStore: () => EditorStore, authToken: string
     }
 
     ws.onopen = () => {
-      console.log('[Automation] WebSocket connected to MCP server')
+      console.debug('[Automation] WebSocket connected to MCP server')
       ws?.send(JSON.stringify({ type: 'register', token }))
     }