Add per-session mutex locking to prevent race conditions #27048
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Add documentation explaining that commands within the same session execute serially while commands across different sessions run in parallel. This prevents race conditions and ensures predictable output within sessions. Key additions: - New "Concurrency and execution order" section explaining serial vs parallel execution - Examples demonstrating session-based parallelism for independent tasks - Best practices for choosing when to use same vs different sessions - Guidance on using multiple sessions for concurrent task execution Related to cloudflare/sandbox-sdk#290 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Preview URL: https://bf3e22aa.preview.developers.cloudflare.com Files with changes (up to 15)
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Document that background processes release their session lock after startup, preventing indefinite session blocking. This is an important detail about how the mutex locking mechanism handles long-running processes like servers. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Summary
Documents the per-session mutex locking behavior introduced in cloudflare/sandbox-sdk#290.
Changes
Context
The Sandbox SDK now implements per-session mutex locking to prevent race conditions when multiple commands execute concurrently within the same session. This ensures:
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🤖 Generated with Claude Code