bug: File Descriptor Exhaustion

[akramcodez]

Description

The read-many-files tool processes all matched files concurrently without any concurrency limits.

// packages/core/src/tools/read-many-files.ts
// No concurrency limit
const results = await Promise.allSettled(fileProcessingPromises);

Impact

• Crashes with EMFILE: too many open files on large directories (e.g., node_modules)
• Potential denial of service due to OS file descriptor exhaustion
• Unable to scan full project trees reliably

Potential Fix

Introduce a concurrency limit using a p-limit wrapper (e.g., max 20 concurrent operations) to respect OS limits.