[Bug] Web-based execution causes excessive re-contexting and token waste on large plans

Bug Description
ultraplan has a problem because its run on web, because of this consume a lot of re-context e most of times its fail with big plans. só I lost a lot of tokens for nothing

Environment Info

• Platform: win32
• Terminal: windows-terminal
• Version: 2.1.113
• Feedback ID: 426c95f6-b50b-484c-b42e-dd7ca03ff8bc

Errors

[{"error":"Error: Tool TodoWrite not found\n    at z8_ (B:/~BUN/root/src/entrypoints/cli.js:3145:30626)\n    at Xj (B:/~BUN/root/src/entrypoints/cli.js:497:21015)\n    at pz (B:/~BUN/root/src/entrypoints/cli.js:497:39569)\n    at rHH (B:/~BUN/root/src/entrypoints/cli.js:497:50282)\n    at NA (B:/~BUN/root/src/entrypoints/cli.js:497:86967)\n    at IpH (B:/~BUN/root/src/entrypoints/cli.js:497:85931)\n    at SXH (B:/~BUN/root/src/entrypoints/cli.js:497:85753)\n    at PAH (B:/~BUN/root/src/entrypoints/cli.js:497:82108)\n    at h8 (B:/~BUN/root/src/entrypoints/cli.js:497:6495)\n    at EH (B:/~BUN/root/src/entrypoints/cli.js:497:4980)\n    at async <anonymous> (B:/~BUN/root/src/entrypoints/cli.js:18390:1405)","timestamp":"2026-04-20T14:22:39.621Z"},{"error":"Error: Tool TodoWrite not found\n    at z8_ (B:/~BUN/root/src/entrypoints/cli.js:3145:30626)\n    at Xj (B:/~BUN/root/src/entrypoints/cli.js:497:21015)\n    at pz (B:/~BUN/root/src/entrypoints/cli.js:497:39569)\n    at rHH (B:/~BUN/root/src/entrypoints/cli.js:497:50282)\n    at NA (B:/~BUN/root/src/entrypoints/cli.js:497:86967)\n    at IpH (B:/~BUN/root/src/entrypoints/cli.js:497:85931)\n    at SXH (B:/~BUN/root/src/entrypoints/cli.js:497:85753)\n    at PAH (B:/~BUN/root/src/entrypoints/cli.js:497:82108)\n    at h8 (B:/~BUN/root/src/entrypoints/cli.js:497:6495)\n    at EH (B:/~BUN/root/src/entrypoints/cli.js:497:4980)\n    at async <anonymous> (B:/~BUN/root/src/entrypoints/cli.js:18390:1405)","timestamp":"2026-04-20T14:22:39.625Z"},{"error":"Error: Tool TodoWrite not found\n    at z8_ (B:/~BUN/root/src/entrypoints/cli.js:3145:30626)\n    at Xj (B:/~BUN/root/src/entrypoints/cli.js:497:21015)\n    at pz (B:/~BUN/root/src/entrypoints/cli.js:497:39569)\n    at rHH (B:/~BUN/root/src/entrypoints/cli.js:497:50282)\n    at NA (B:/~BUN/root/src/entrypoints/cli.js:497:86967)\n    at IpH (B:/~BUN/root/src/entrypoints/cli.js:497:85931)\n    at SXH (B:/~BUN/root/src/entrypoints/cli.js:497:85753)\n    at PAH (B:/~BUN/root/src/entrypoints/cli.js:497:82108)\n    at h8 (B:/~BUN/root/src/entrypoints/cli.js:497:6495)\n    at EH (B:/~BUN/root/src/entrypoints/cli.js:497:4980)\n    at async <anonymous> (B:/~BUN/root/src/entrypoints/cli.js:18390:1405)","timestamp":"2026-04-20T14:22:39.629Z"},{"error":"Error: Tool TodoWrite not found\n    at z8_ (B:/~BUN/root/src/entrypoints/cli.js:3145:30626)\n    at Xj (B:/~BUN/root/src/entrypoints/cli.js:497:21015)\n    at pz (B:/~BUN/root/src/entrypoints/cli.js:497:39569)\n    at rHH (B:/~BUN/root/src/entrypoints/cli.js:497:50282)\n    at NA (B:/~BUN/root/src/entrypoints/cli.js:497:86967)\n    at IpH (B:/~BUN/root/src/entrypoints/cli.js:497:85931)\n    at SXH (B:/~BUN/root/src/entrypoints/cli.js:497:85753)\n    at PAH (B:/~BUN/root/src/entrypoints/cli.js:497:82108)\n    at h8 (B:/~BUN/root/src/entrypoints/cli.js:497:6495)\n    at EH (B:/~BUN/root/src/entrypoints/cli.js:497:4980)\n    at async <anonymous> (B:/~BUN/root/src/entrypoints/cli.js:18390:1405)","timestamp":"2026-04-20T14:22:39.631Z"},{"error":"Error: Tool TodoWrite not found\n    at z8_ (B:/~BUN/root/src/entrypoints/cli.js:3145:30626)\n    at Xj (B:/~BUN/root/src/entrypoints/cli.js:497:21015)\n    at pz (B:/~BUN/root/src/entrypoints/cli.js:497:39569)\n    at rHH (B:/~BUN/root/src/entrypoints/cli.js:497:50282)\n    at NA (B:/~BUN/root/src/entrypoints/cli.js:497:86967)\n    at IpH (B:/~BUN/root/src/entrypoints/cli.js:497:85931)\n    at SXH (B:/~BUN/root/src/entrypoints/cli.js:497:85753)\n    at PAH (B:/~BUN/root/src/entrypoints/cli.js:497:82108)\n    at h8 (B:/~BUN/root/src/entrypoints/cli.js:497:6495)\n    at EH (B:/~BUN/root/src/entrypoints/cli.js:497:4980)\n    at async <anonymous> (B:/~BUN/root/src/entrypoints/cli.js:18390:1405)","timestamp":"2026-04-20T14:22:39.633Z"},{"error":"Error: Tool TodoWrite not found\n    at z8_ (B:/~BUN/root/src/entrypoints/cli.js:3145:30626)\n    at Xj (B:/~BUN/root/src/entrypoints/cli.js:497:21015)\n    at pz (B:/~BUN/root/src/entrypoints/cli.js:497:39569)\n    at rHH (B:/~BUN/root/src/entrypoints/cli.js:497:50282)\n    at NA (B:/~BUN/root/src/entrypoints/cli.js:497:86967)\n    at IpH (B:/~BUN/root/src/entrypoints/cli.js:497:85931)\n    at SXH (B:/~BUN/root/src/entrypoints/cli.js:497:85753)\n    at PAH (B:/~BUN/root/src/entrypoints/cli.js:497:82108)\n  …

API Error: Stream idle timeout - partial response received
continue
API Error: Stream idle timeout - partial response received
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