[Bug] Context compaction fails with 4+ parallel agents due to low context blocking

Bug Description
when use more than 4 agent in parallel and claude review all feedback on low context, context is blocked and cannot be compacted anymore.

Environment Info

• Platform: darwin
• Terminal: goland
• Version: 2.0.73
• Feedback ID: 5fa4f346-c383-4c5b-86d8-58a27883715d

Errors

[{"error":"Error: EISDIR: illegal operation on a directory, read\n    at Module.readFileSync (node:fs:442:20)\n    at file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:9:429\n    at rI (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:8:8084)\n    at Object.readFileSync (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:9:404)\n    at kcB (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:4822:22305)\n    at Object.call (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:1016:942)\n    at am5 (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2200:17490)\n    at runNextTicks (node:internal/process/task_queues:65:5)\n    at process.processImmediate (node:internal/timers:453:9)\n    at process.topLevelDomainCallback (node:domain:161:15)","timestamp":"2025-12-19T18:57:03.336Z"},{"error":"Error: EISDIR: illegal operation on a directory, read\n    at Module.readFileSync (node:fs:442:20)\n    at file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:9:429\n    at rI (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:8:8084)\n    at Object.readFileSync (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:9:404)\n    at kcB (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:4822:22305)\n    at Object.call (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:1016:942)\n    at am5 (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2200:17490)\n    at runNextTicks (node:internal/process/task_queues:65:5)\n    at process.processImmediate (node:internal/timers:453:9)\n    at process.topLevelDomainCallback (node:domain:161:15)","timestamp":"2025-12-19T18:57:10.699Z"},{"error":"Error: EISDIR: illegal operation on a directory, read\n    at Module.readFileSync (node:fs:442:20)\n    at file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:9:429\n    at rI (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:8:8084)\n    at Object.readFileSync (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:9:404)\n    at kcB (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:4822:22305)\n    at Object.call (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:1016:942)\n    at am5 (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2200:17490)\n    at runNextTicks (node:internal/process/task_queues:65:5)\n    at process.processImmediate (node:internal/timers:453:9)\n    at process.topLevelDomainCallback (node:domain:161:15)","timestamp":"2025-12-19T18:57:27.671Z"},{"error":"Error: EISDIR: illegal operation on a directory, read\n    at Module.readFileSync (node:fs:442:20)\n    at file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:9:429\n    at rI (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:8:8084)\n    at Object.readFileSync (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:9:404)\n    at kcB (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:4822:22305)\n    at Object.call (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:1016:942)\n    at am5 (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:2200:17490)\n    at runNextTicks (node:internal/process/task_queues:65:5)\n    at process.processImmediate (node:internal/timers:453:9)\n    at process.topLevelDomainCallback (node:domain:161:15)","timestamp":"2025-12-19T18:57:56.179Z"},{"error":"Error: EISDIR: illegal operation on a directory, read\n    at Module.readFileSync (node:fs:442:20)\n    at file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:9:429\n    at rI (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:8:8084)\n    at Object.readFileSync (file:///Users/evgeniystepanchuk/.bun/install/global/node_modules/@anthropic-ai/claude-code/cli.js:9:40

Note: Error logs were truncated.