## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work. > - Heartbeat execution selects an environment before it prepares a workspace and starts an agent. > - Workspace preparation now has its own module, but its selection policy still occupies the executor. > - Environment defaults, recovery bindings, chat isolation, and workspace contention must retain their order. > - This pull request moves that selection phase behind one typed function. > - The executor keeps dispatch gates and lease cleanup. Tests cover the public path and the new boundary. ## Linked Issues or Issue Description Refs #15807. This continues the heartbeat extraction series after workspace preparation. **Current behavior** The 5,599-line heartbeat service contains a 301-line environment selection phase inside run execution. **Proposed behavior** Move that phase to `heartbeat/environment-selection.ts`. Keep the same policy, statement order, errors, and public exports. **Reason and benefit** Readers can find selection policy in one module and follow the executor's phases without reading each policy branch. ## What Changed - Add `selectHeartbeatEnvironment` with typed run, task, policy, configuration, and service inputs. Return the values needed by configuration and workspace preparation. - Preserve native recovery bindings, environment precedence, managed sandbox enforcement, Kubernetes provisioning, native chat isolation, and shared workspace contention. - Reduce `heartbeat.ts` from 5,599 lines / 234,599 bytes to 5,314 lines / 220,784 bytes. The new module is 402 lines / 18,215 bytes. - Add six public-path characterization cases before moving production code and six boundary cases. Repair plugin-test teardown to drain active execution and call the database cleanup helper. - Assert the selected local environment in the browser fixture's real worker and document the new boundary. ## Verification - Before the move: 71 tests passed, including all six new public-path cases. Three plugin tests skipped when the host could not start their database probe. - After the move: all 112 focused tests passed across eight files, with no skips. These cover environment policy, local and plugin execution, contention, recovery bindings, workspace preparation, chat isolation, and low-trust directories. - Passed `pnpm -r typecheck` and `pnpm build`. - A normalized TypeScript AST comparison confirms the 301 moved lines and remaining executor statements are unchanged, apart from the new call and imports. - Browser acceptance: the task UI recovered automatically and the worker verified its selected local environment, preserved uncommitted files, and completed the task. The persistent-failure case passed in isolation: three total runs, then a blocked task that remained blocked after reload. - The first persistent-failure browser attempt missed the retry banner within five seconds, despite a persisted scheduled retry. Its unchanged isolated rerun passed. The trace is retained; the intermittent UI failure is not yet attributed to a root cause. No assertion or timeout was relaxed. - Greptile reviewed `20953dd164decb565bc8d85081aad31a23fd33e5`: 5/5, no actionable findings. - Hosted CI passed on `20953dd164decb565bc8d85081aad31a23fd33e5`: 52 successful checks and two intentionally skipped Storybook checks, with no pending or failing checks. This includes all general and serialized test groups, Runner verification, eight browser shards, typecheck, and build. - The duplicate local `pnpm test:run` was interrupted after hosted CI completed. It is not reported as a local full-suite pass. Local completed checks are the 112 focused tests, typecheck, build, and browser cases described above. ## Risks - This selection phase enforces execution restrictions. A wrong input or import could select the wrong environment or change retry behavior. Public-path tests cover refusal, redirect, contention, and dispatch; boundary tests cover recovery and isolation. - The helper can provision a managed environment row and add concurrency notes to the supplied task context. It acquires no execution lease. The executor retains its catch/finally boundaries and resource ownership. - Kubernetes selection is tested with real database state and bootstrap settings. These checks do not claim execution against a live Kubernetes cluster or hosted sandbox provider. - No schema, migration, API contract, or intended behavior change. ## Model Used OpenAI Codex (GPT-6), with repository inspection, code editing, compiler checks, database integration tests, and browser automation. The exact serving model ID and context-window size are not exposed in this session. ## 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>
Workspace bootstrap recovery acceptance
This opt-in suite uses a disposable loopback instance, real Git repositories, the real Git scan scheduler, durable retries, and the task UI. A deterministic process adapter verifies the prepared files and completes its task through the run-scoped API. It makes no model calls. The test Git executable injects a real timeout only when the test explicitly arms a marker inside its repository.
From a development worktree, start the foreground instance:
node cli/node_modules/tsx/dist/cli.mjs tests/e2e/workspace-bootstrap/launch.ts
The launcher creates an isolated test-drive, installs the Git shim, and sets a 10-second snapshot deadline after test-drive clears inherited configuration. Production's longer snapshot deadline would outlast the injected failure.
Set BOOTSTRAP_REAL_GIT to the absolute Git executable if it is not
/usr/bin/git. Do not point this fixture at a normal development or production
instance. The seeder checks the loopback host, trusted-local mode, and company
name. It does not create tasks; each test creates its task through the UI.
Use the ready URL printed by test-drive:
WORKSPACE_BOOTSTRAP_TEST_URL=http://127.0.0.1:3100 \
pnpm exec playwright test --config tests/e2e/workspace-bootstrap/playwright.config.ts
The tests prove that one timeout schedules a retry and completes without manual
Retry, that persistent timeouts stop after three total runs, and that the final
state survives reload. Source edits remain intact and ignored private files are
not copied. Screenshots and failure traces go to test-results/workspace-bootstrap.
Stop test-drive with Ctrl-C. Its disposable data directory remains for inspection.