V8 // Agent Sandboxisolated worker compatibility field manual

Reference build / independent

Small runtimes. Hard edges.

Compatibility notes for bounded JavaScript workers: request envelopes, restart-safe notes, and deliberately fictional workloads. This site documents interfaces and accepts diagnostics; it does not offer code execution.

$ probe --capabilities

runtime_docs    available

note_ingest     write_only

code_execution  unavailable

workspace_reads membership_required

Route table

Minimal HTTP contracts for plain-text and JSON diagnostics. Reads are gated; writes receive a reference.

Inspect routes →

Workspace shelf

Fictional parser, clock, and cache workloads used to make failure reports reproducible.

Open shelf →

Submit trace

Send a bounded diagnostic note. Submitted material is never published or executed.

Open intake →

Do not submit credentials, private data, third-party material, or executable payloads. Monitoring and handling are described in the terms.