Extract parseDevinManualPaste for headless and loopback login, return
access_denied (and CSRF mismatches) instead of an unrecognized-format
error, collapse authorization URL query construction, and lock the
headless URL shape plus paste edge cases in tests.
- Add `stream-bootstrap-timeout` configuration (defaulting to 0/unlimited, recommended 20s behind reverse proxies) to bound how long early handshake or trickled events may hold response headers.
- Release stream buffering into normal in-stream delivery once the time budget is exhausted on both SSE and WebSocket executors.
- Deliver post-timeout overload and status-bearing errors in-stream rather than triggering credential failover, preventing latency doubling on long reasoning turns.
- Provide thread-safe mock clock test harness and comprehensive unit tests covering timeout release, unlimited default, disabled ceilings, and post-timeout error delivery.
- Convert standalone or orphan tool outputs without matching tool calls into plain user text.
- Synthesize error tool results for dangling tool calls before user turns or assistant prefill checks.
- Enforce tool results to lead user messages and warn on unmapped items or invariant violations.
Closes: #5805
- Introduce `SetStringWithoutHTMLEscape` to prevent escaping of HTML characters (`<`, `>`, `&`) in tool call arguments and argument deltas across translators.
- Handle sequential tool calls in Devin executor that share the same stream index but have distinct tool call IDs.
- Normalize responses named and custom tool choices to chat completions function format.
- Resolve namespaced and canonical tool names for tool choice.
Closes: #5794
- Wire parity: align Connect-RPC Sentry-Trace, User-Agent suppression, float32 double pattern, and dynamic 732-char hex device fingerprint
- Session ordinal & cache: implement process-scoped Field 15.2 with bounded LRU (5000 entries) and Field 15.4=14 user boundary; prioritize stable session_id over previous_interaction_id to preserve prompt caching
- Streaming robustness: unblock hung TCP reads on client cancellation via context watcher; accurately propagate stream read errors and trailer errors instead of swallowing truncated frames
- Thought signature & reasoning: emit raw delta signatures directly in active thought steps; eliminate redundant tail base64 re-encoding; ensure 1:1 assistant signature and thinking alignment across multi-turn history
- Tool call de-multiplexing: route parallel tool calls by tc.Index in both streaming step events and non-streaming aggregations
- Security & transport: escape OAuth callback error HTML against reflected XSS, enforce strict state validation, and isolate Devin HTTP transport with tr.Clone()
