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Alix-007
42c6e7869e
The Copilot usage read in extensions/github-copilot/usage.ts parsed its
HTTP response with an unbounded await res.json(). A hostile or buggy
api.github.com proxy (the proxy endpoint is derived from a user-supplied
token) could stream an unbounded JSON body and drive the usage snapshot
into OOM.
Route the read through the shared readProviderJsonResponse (from
openclaw/plugin-sdk/provider-http), which enforces the 16 MiB byte cap,
cancels the stream on overflow, and wraps malformed JSON with the caller
label. Same no-helper-import-to-bounded-reader shape as the #96027 /
#96038 response-limit work.
Add a focused regression test: when the usage stream exceeds the JSON
byte cap, fetchCopilotUsage rejects with a bounded-overflow error and the
reader cancels the body mid-flight instead of buffering the full
advertised stream. Existing parse/HTTP-error cases keep passing.
(cherry picked from commit 646e54ae35)