memory_tool_store: _error() helper for every failure dict, reload folded into
_mutate, load_from_disk loops over targets with an inline snapshot sanitizer,
_locate inlined into _edit, batch-op splice, drift check compacted; on-disk
format and every result string unchanged (golden corpus).
memory_tool: single _apply_write_gate handles op + batch, _batch_op_line helper,
gate/validation returns folded, on-disk store built directly.
session_search_tool: _get_session_meta unifies 5 get_session lookups, rebuild
note folded into _discover_payload via _ok, lineage dedupe inlined into
_discover, scroll rebind inlined, title-match shaping via one closure, browse
comprehension, unreachable scroll guard dropped, single hermes_state import.
microsoft_graph_client/auth: signatures hugged, bodiless-response handling
inlined, header dict built in one expression, dead from_env removed.
process_registry_notifications: _preamble merges header/task-source/role lines,
_notice_lines shared, table-driven completion status, comprehension headers.
Schemas byte-identical (SCHEMA-OK); golden corpus old-vs-new identical.
The prior implementation routed download_to_file through the shared
_request() path, which uses httpx.AsyncClient.request() inside a
context manager that closes before aiter_bytes() iterates. The body
was read into memory first and the chunked write loop replayed it
from buffer. On small test payloads this was invisible; on real
Teams meeting recordings (hundreds of MB) it would force the full
artifact into RAM per download.
Rewrites download_to_file to open its own AsyncClient and use
client.stream(), keeping the context open across the aiter_bytes
iteration so the body is actually streamed chunk-by-chunk to disk.
Retry/token-refresh/Retry-After semantics are preserved by handling
them inline on the stream path. Partial .part files are cleaned up
on transport errors and on exhausted retries.
Adds three tests: large-payload streaming verifies the chunk loop
runs multiple times (discriminator: 512 KiB at chunk_size=65536
yields 8 chunks under streaming, 1 under buffering), transient-5xx
retry recovers after a single retry, and exhausted-retry cleans up
the partial file.
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