Complete results have a 32 MiB input, 64 MiB reply, 1 MiB combined diagnostics
and 30-second owned command deadline. The reply budget applies to the decoder
record; the CLI/MCP Evidence envelope adds copies and encoding overhead. The
pinned MCP SDK defaults to a 10 MiB receive buffer. Large complete results need
a caller-configured `StdioClientTransport({ maxBufferSize: ... })`; the large
extended-index verification uses 256 MiB and an explicit five-minute request
timeout in its separate opt-in MCP lane. REA does not silently truncate the result. Python lowers resource soft limits to at most 3 GiB virtual address space,
30 CPU seconds and 64 MiB file output. Inherited tighter soft/hard limits are
retained, and the effective values are returned in the result limitations. Virtual address space is not RSS;
Unicorn needs a large virtual map. Limits fail with no partial success, and
owned process/root cleanup completes independently of cancellation.
Core files, GDB session/state/control, optional pwndbg enrichment and instruction
inspection are separate increments tracked by #969. This increment makes no
real support claim for those features or other operating systems/architectures.
Typed decoder failures retain bounded `captured_output` (stdout, stderr and an
explicit truncation flag) alongside the original failure category and reason.
Successful `diagnostics` also exposes the supervisor's `truncated` flag. Output
beyond the complete diagnostic budget is rejected, including when the decoder
writes a valid reply; cleanup and late cancellation reuse the observed flag.
Memory allocation failures use `resource_constraint`, with effective resource
limits (or an explicit unknown) and memory-specific recovery guidance. A
MemoryError alone does not establish the exact failed allocation or that a
particular budget was exhausted. Invalid undersized symbol entries are rejected
before REA reports source ranges for them.
The bridge reserves 1 MiB to report allocation failures. If even error reporting
or serialization fails with MemoryError, its reserved exit status preserves the
resource classification with unknown effective limits.
Reserved exits require a matching private marker written by the bridge's actual
failure branch. Bare launcher exits or missing/unwritable markers retain process
diagnostics with the resource cause unverified.
Signal termination alone is never classified as observed memory exhaustion.
The small bootstrap also covers catchable MemoryError during adapter imports,
compilation and initialization. Python interpreter startup failures before the
bootstrap runs retain their observed process diagnostics without guessed causes.
SIGXCPU retains a CPU resource diagnostic and CPU-specific recovery advice.
Observed EFBIG writes or SIGXFSZ termination retain a file-size resource
diagnostic and file-size-specific recovery advice. If a tight file limit also
prevents writing the limit record, effective values remain unknown.
The bridge records actual limits in owned storage before analysis; missing or
malformed limit reports remain unknown with their read failure preserved. A
received signal alone does not establish its exact cause. Dynamic tags require
a complete DT_NULL inside PT_DYNAMIC; interpreter names and ranges end at the
first NUL, with any padding still represented by the original segment range.
