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PaperClipAI/server
Nicky LeachandPaperclip 9f7565f4ce feat: activate OpenTelemetry spans on the sandbox start path (#10536)
## Thinking Path

> - Paperclip moves agent work through sandboxed execution and
control-plane services.
> - The sandbox start path now has a no-op span seam.
> - This change turns that seam on when OTLP export is configured.
> - It keeps the default path unchanged when export is off.
> - The result is structured startup traces with low-cardinality
attributes and explicit parent links.
> - The benefit is better observability without changing normal
behavior.

## Linked Issues or Issue Description

No public GitHub issue exists for this change.

### Problem
The sandbox start path has a tracer seam, but it stays a no-op unless
the OTLP export path is active.

### Proposed solution
Enable the server tracer on sandbox bring-up, open a root span, parent
each startup boundary to that root, and keep the export path opt-in
behind `OTEL_EXPORTER_OTLP_ENDPOINT`.

### Alternatives considered
- Keep the start path as a no-op. I rejected that path because it leaves
sandbox start opaque when OTLP export is already configured.
- Add broad attributes for commands and paths. I rejected that path
because the span allowlist must stay low-cardinality.

### Roadmap alignment
This follows the current OTel sandbox-start work and keeps the default
path unchanged.

## What Changed

- Add a root sandbox startup span and child spans for each named startup
boundary.
- Keep concurrent bridge spans parented to the root span.
- Inject the server tracer through the adapter deps without
OpenTelemetry imports in the engine.
- Attach host-received provider duration attributes only when the values
are finite.
- Keep span attributes inside the allowlist and keep command, path, id,
and error text out of span data.

## Verification

- The pushed branch already passed `pnpm --filter
@paperclipai/adapter-utils exec tsc --noEmit`.
- The pushed branch already passed `pnpm exec vitest run
packages/adapter-utils/src/acpx-engine/`.
- The pushed branch already passed `pnpm --filter @paperclipai/server
exec vitest run src/__tests__/environment-execution-target.test.ts
src/__tests__/instrumentation.test.ts`.
- The pushed branch already passed `pnpm --filter @paperclipai/server
exec tsc --noEmit`.

## Risks

- OTel export changes trace volume when the endpoint is set.
- The allowlist limits trace detail, so new fields need care.
- The change stays no-op when OTLP export is off.

## Model Used

- OpenAI GPT-5, tool use enabled.

## Checklist

- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used with 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 linked existing issues or described the issue in-PR
- [x] I have not referenced internal/instance-local Paperclip issues or
links
- [x] My branch name describes the change and contains no internal
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>
2026-07-30 21:20:58 -07:00
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