## Thinking Path
> - Paperclip is the open source app people use to manage AI agents for
work.
> - Sandbox provider plugins let agents run commands in remote
environments.
> - The Daytona provider polls the exit code while it waits for command
logs.
> - Polling delays log delivery and does not support long-lived streamed
commands.
> - This pull request adds an opt-in Daytona log stream with one
reconnect and a poll fallback.
> - The benefit is faster log delivery while the existing default path
stays unchanged.
## Linked Issues or Issue Description
Refs: #10941
**Subsystem affected**
packages/plugins — sandbox provider plugins.
**Problem or motivation**
The Daytona provider polls the command exit code every 50 milliseconds
while it waits for logs. This delays output and does not support a
long-lived streamed command.
**Proposed solution**
Add the `useLogStream` provider option. Stream stdout and stderr from
the Daytona callback log form, read the exit code after the stream ends,
retry the read with bounded backoff, and fall back to the existing poll
path after a disconnect.
**Alternatives considered**
Keep polling for all commands. This keeps the current behavior but does
not provide timely logs or a path for long-lived commands.
**Roadmap alignment**
This supports the roadmap item for cloud and sandbox agents, including
Daytona.
## What Changed
- Add the opt-in `useLogStream` option with a default of `false`.
- Stream stdout and stderr from the Daytona callback log form.
- Drop replayed log prefixes by delivered byte offset after reconnect.
- Retry once after disconnect, then use the existing poll path.
- Read the exit code once after a successful stream and retry when the
code is not ready.
- Add tests for ordered output, exit-code reads, disconnect fallback,
and reconnect replay handling.
## Verification
- Run `node_modules/.bin/vitest run --config
packages/plugins/sandbox-providers/daytona/vitest.config.ts
packages/plugins/sandbox-providers/daytona/src/plugin.test.ts`.
- Confirm that the full Daytona plugin test project passes with 127
tests.
- Confirm that the changed files type-check against Daytona SDK 0.203.0
types.
- Review the PR against parent PR #10941 before it reaches `master`.
## Risks
- The stream path changes behavior only when `useLogStream` is `true`.
- A stream failure can add one reconnect attempt before the existing
poll fallback.
- The stream path has no command deadline because it supports long-lived
commands.
- No endpoint, stored data, telemetry shape, authentication rule, or
result shape changes.
## Model Used
OpenAI Codex, GPT-5, tool use and code execution. The context window and
reasoning mode are not exposed by this run.
## 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>
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