## Thinking Path
> - Paperclip is the open source app people use to manage AI agents for
work
> - Paperclip reports server and browser errors through optional Sentry
monitoring
> - One environment variable sends both error types to one Sentry
project
> - Operators need separate control for browser and server error data
> - This pull request adds specific variables and keeps the existing
variable as a fallback
> - The benefit is separate monitoring without breaking current
deployments
## Linked Issues or Issue Description
**What existing behavior does this improve?**
The Sentry configuration for server and browser monitoring uses one
environment variable.
**Subsystem affected**
Cross-cutting (multiple of the above)
**Current behavior**
`SENTRY_DSN` supplies the server and browser clients. Both clients
therefore report to the same Sentry project.
**Proposed behavior**
`SENTRY_DSN_FRONTEND` supplies the browser client. `SENTRY_DSN_BACKEND`
supplies the server process. `SENTRY_DSN` remains a fallback for either
component.
**Reason and benefit**
Operators can send browser and server errors to separate Sentry
projects. Operators can also activate only one component.
**Breaking changes**
None. Existing deployments can continue to use `SENTRY_DSN`.
## What Changed
- Add `resolveSentryDsns(env)` and use it in the server and browser
configuration paths.
- Add precedence, empty-string, fallback, and route tests.
- Update the README, observability guide, and stale code comments.
- Log one warning when the server uses the legacy fallback without
exposing a DSN value.
## Verification
- `pnpm vitest run --project server sentry-dsn` — 8 tests pass.
- `pnpm vitest run --project server auth-routes` — 21 tests pass.
- The earlier run of the three targeted suites passed 40 tests.
- `tsc --noEmit` passes for the files in this diff.
- All required GitHub Actions checks pass, including the full
continuous-integration suite.
## Risks
The main risk is an incorrect environment variable precedence rule. Unit
tests cover specific values, empty strings, and legacy fallback
behavior. The existing `SENTRY_DSN` path remains compatible.
## Model Used
OpenAI Codex — GPT-5, current runtime, tool use and code execution.
## 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>
## Thinking Path
> - Paperclip is the open source app people use to manage AI agents for
work.
> - Paperclip uses separate server and browser packages for runtime
services and the board.
> - Sentry integrations need an exact SDK version and safe optional
loading.
> - A version range can select an SDK that the privacy tests did not
audit.
> - Missing peer metadata does not describe the optional server SDK
contract.
> - This pull request pins the browser SDK and gates the optional server
SDK on its exact version.
> - The benefit is a clear SDK contract with fail-open startup behavior.
## Linked Issues or Issue Description
**What happened?**
The browser package used the range ^10.71.0, so a lockfile refresh could
select a newer SDK. The server loaded @sentry/node dynamically but did
not declare its optional peer contract.
**Expected behavior**
The browser package must use the audited 10.71.0 version. The server
must load @sentry/node only when the installed peer matches 10.71.0. The
server must start when the optional peer is absent.
**Steps to reproduce**
1. Install the project dependencies.
2. Inspect the browser Sentry version and the server package metadata.
3. Start the server without installing @sentry/node.
4. Confirm that the server starts and that the dynamic Sentry bootstrap
does not load an unsupported peer version.
**Paperclip version or commit**
9c57c0f119
**Deployment mode**
Built from source with pnpm dev or pnpm build.
**Installation method**
Built from source.
**Agent adapter(s) involved**
Not adapter-specific (core change).
**Database mode**
Not database-related.
## What Changed
- Pin @sentry/browser to exactly 10.71.0 as a UI development dependency.
- Declare @sentry/node as an optional server peer dependency at 10.71.0.
- Gate the dynamic server bootstrap on the exact peer version.
- Add tests for the browser pin, peer metadata, version gate, and
fail-open loading.
- Document the supported server SDK version.
- Keep the lockfile unchanged because the pull request workflow
regenerates it for manifest changes.
## Verification
- Server tests pass with six expected skips when @sentry/node is absent.
- UI tests pass.
- The UI build emits the lazy Sentry browser chunk.
- git diff --check passes.
- GitHub pull request checks must pass after this pull request opens.
- Greptile must return a 5/5 score with no open findings.
## Risks
The exact version gate prevents Sentry startup when an unsupported SDK
version exists. The integration remains optional and fail-open. The
lockfile workflow must regenerate the lockfile before frozen downstream
jobs run. The label-gated Storybook visual job must not run until it can
restore the generated lockfile artifact.
## Model Used
OpenAI Codex, GPT-5, tool use and code review support, exact context
window details are managed by the execution platform.
## 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
- [x] My branch name describes the change 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>
## Thinking Path
> - Paperclip is the open source app people use to manage AI agents for
work.
> - The server and the browser need clear error reports when an operator
enables external monitoring.
> - Paperclip already uses an opt-in OpenTelemetry pattern for server
traces.
> - Sentry can provide error reports for both runtime paths when the
operator sets one data source name.
> - This pull request adds one opt-in Sentry gate for the server and the
browser.
> - The benefit is faster diagnosis while the default setup sends no
Sentry data.
## Linked Issues or Issue Description
**What is improved?**
Paperclip gains optional error monitoring for server and browser
failures.
**Subsystem affected**
Cross-cutting (server, UI, and shared authentication data).
**Current behavior**
Paperclip has no built-in Sentry error capture for server failures or
browser boundary failures. Operators must inspect local logs and browser
tools.
**Proposed behavior**
When the operator sets `SENTRY_DSN`, the server and authenticated
browser use the same Sentry project. When the variable is absent, both
paths stay inactive. The server loads Sentry dynamically and fails open
when the optional package is absent.
**Reason and benefit**
Operators can inspect runtime errors in one Sentry project. The default
setup remains local and sends no monitoring data.
**Breaking changes**
None when `SENTRY_DSN` remains unset. Authenticated session responses
add the optional `sentryDsn` field.
**Additional context**
The implementation uses built-in Sentry privacy options. It disables
default HTTP context and breadcrumb integrations and keeps
`sendDefaultPii` false.
## What Changed
- Add an opt-in server Sentry gate with dynamic package loading and
fail-open behavior.
- Add the Sentry data source name to the authenticated session response.
- Add an authenticated browser Sentry gate and React error boundary
capture.
- Add tests for server, browser, route, and application error paths.
- Document activation, installation, privacy settings, capture behavior,
and operator controls.
## Verification
- Run `npx vitest run server/src/__tests__/sentry.test.ts`.
- Run `npx vitest run ui/src/lib/sentry.test.ts`.
- Run `npx vitest run server/src/__tests__/auth-routes.test.ts
server/src/__tests__/shutdown.test.ts`.
- Confirm that the full continuous integration suite passes on this pull
request.
- Leave `SENTRY_DSN` unset and confirm that the server and browser gates
stay inactive.
- Set `SENTRY_DSN` and install the optional Sentry packages before a
manual capture check.
## Risks
The operator controls the Sentry project and accepts the data risk when
the operator enables the feature. Error objects can contain messages,
stacks, or cause chains with private values. The default configuration
sends no data because the feature stays off without `SENTRY_DSN`. A
missing optional server package does not stop server boot.
## Model Used
OpenAI Codex, GPT-5, with tool use, repository inspection, GitHub CLI
operations, and code review support.
## 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>
Nicky Leach