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Nicky LeachandPaperclip
c5050396c7
## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work > - Paperclip runs agent work through adapters and sandbox providers > - The Daytona duplex path sends host input through a provider pseudo-terminal WebSocket > - Large messages exceed the provider limit, and a transport close can look like a process exit > - This pull request chunks UTF-8 input and carries transport-close state through the duplex path > - The benefit is reliable large input and accurate loss reporting ## Linked Issues or Issue Description **What happened?** The Daytona duplex path sent a full input payload as one WebSocket message. A payload above the provider limit closed the channel. The wait path also mapped a non-numeric exit result to a process exit without exit data. **Expected behavior** The provider must receive large input as ordered UTF-8 chunks. A transport close without exit data must record `transport_closed`, while a numeric exit must record `provider_exit`. **Steps to reproduce** 1. Start a Daytona duplex session. 2. Send an input payload larger than 65536 bytes. 3. Observe that one message closes the provider channel. 4. End a session without a numeric exit code. 5. Observe that the loss reason reports a process exit. **Paperclip version or commit** Commit `1761e79ec9097c65d94f90a8ba20416f8ab718a6`. **Deployment mode** Built from source with the Daytona sandbox provider. ## What Changed - Add a shared UTF-8 byte chunker with a 32768-byte cap. - Route both Daytona pseudo-terminal write paths through the chunker. - Preserve multi-byte UTF-8 sequences across read-side chunks. - Carry an explicit `transportClosed` state through the worker and host wait paths. - Record `transport_closed` for a reason-less transport close and `provider_exit` for a numeric exit. - Keep orderly completion suppression for both exit paths. ## Verification - The Daytona plugin suite passes 194 tests. - The adapter-utils broker, codec, and telemetry suites pass 73 tests. - The plugin SDK duplex and worker RPC host suites pass 37 tests. - The server plugin worker manager duplex suite passes 78 tests. - The execution target sandbox and ACPX execute suites pass 257 tests. - TypeScript checks pass for adapter-utils, plugin SDK, server, and the standalone Daytona plugin. ## Risks The chunk size adds a loop for large input payloads. The 32768-byte cap stays below the provider limit. The optional loss field preserves compatibility for other providers. ## Model Used OpenAI Codex, GPT-5, extended reasoning, tool use, and code execution. The runtime does not expose a separate context-window value. ## Checklist - [x] I have included a thinking path that traces from project context to this change - [x] I have specified the model used (with version and capability details) - [x] I have checked ROADMAP.md and confirmed this PR does not duplicate planned core work - [x] I have searched GitHub for duplicate or related PRs and linked them above - [x] I have either (a) linked existing issues with `Fixes: #` / `Closes: #` / `Refs: #` OR (b) described the issue in-PR following the relevant issue template - [x] I have not referenced internal/instance-local Paperclip issues or links (only public GitHub `#NNN` / `github.com/paperclipai/paperclip` URLs) - [x] My branch name describes the change (e.g. `docs/...`, `fix/...`) and contains no internal Paperclip ticket id or instance-derived details - [x] I have run tests locally and they pass - [x] I have added or updated tests where applicable - [x] I have updated relevant documentation to reflect my changes - [x] I have considered and documented any risks above - [x] All Paperclip CI gates are green - [x] Greptile is 5/5 with no open P2s, recommendations, or follow-ups - [x] I will address all Greptile and reviewer comments before requesting merge --------- Co-authored-by: Paperclip <noreply@paperclip.ing>