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## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work. > - The task composer is where operators direct running agents. > - Operators need to stop work without leaving the conversation. > - Existing pause controls already hold task trees and interrupt both runner types. > - This pull request connects the composer to those controls and removes repeated feedback. > - Operators can pause work quickly and still queue messages while agents run. ## Linked Issues or Issue Description **What existing behavior does this improve?** Task pause, resume, and cancellation in the task page and composer. **Current behavior** The empty composer cannot stop a running task. Task controls require extra confirmation and reason text. Pause can show several notifications for the task already on screen. **Proposed behavior** Show Stop while this task runs and the composer is empty. Text or attachments switch it to Send. Stop and the menu use the same manual pause hold. Parent pauses include descendants. Keep task cancellation in the menu with a compact confirmation. Show one quiet pause row and gray cancelled-run details. **Reason and benefit** Operators can interrupt execution with one click. Drafts and queued messages keep their existing behavior. The UI waits for actual termination, including native cancellation acknowledgment. **Breaking changes** No endpoint, schema, or task-status change. Pause no longer asks for confirmation or a reason. Resume now honors the existing wake-agents option. Task notifications are suppressed for the task and subtree currently in view. Related UI work: #8228 changes navigation and composer shortcuts. This PR covers execution controls. No duplicate Stop-button PR was found. The change improves existing controls and does not duplicate a roadmap milestone. ## What Changed - Add Stop, pending feedback, duplicate-click protection, and inline errors to the composer. - Share the pause mutation across the composer, active-run controls, and menu. - Poll affected runs after a pause request. Require native cancellation acknowledgment. - Remove pause confirmation and shared reason fields. Reduce cancel confirmation to its task count and actions. - Honor wake-agents for executable tasks only. Preserve the pause when recovery review is needed; show partial wake failures inline. - Preserve explicit legacy reconciliation decisions while their continuation waits for dispatch. - Suppress notifications for visible task trees. Use quiet pause and cancellation feedback. - Add interactive stories using production controls and native/legacy end-to-end tests. ## Verification - User reviewed the running feature and revised Storybooks in the browser. - Rebased focused checks passed: 295 original targeted tests, 161 updated route/page/notification/status tests, and 26 recovery integration tests. - Both isolated runner journeys pass on the final revision (1.7 minutes). Coverage includes queueing, parent and child interruption, persisted holds, no automatic continuation, reconciled resume, cancellation, terminal exclusions, and no Stop toast. - Native coverage uses real runnerd with a deterministic provider fixture. Legacy coverage checks actual process termination. Live hosted-provider execution was not tested. - Repository typecheck and build, Storybook build, and token gates passed after rebase. The final server typecheck/build also passed. - The broad local run completed its general-server stage with 7,219 passing tests, 48 skipped, and two failures from cached pre-fix source and a stale native provider fixture. Both failed tests pass in fresh final-head reruns after rebuilding the fixture; the script did not continue to its later local stages. CI runs all test groups on the final revision. - Final revision: all 31 applicable CI checks passed; Storybook visual regression was skipped by its workflow conditions. Greptile: 5/5, zero unresolved comments. - Review `Tasks / Execution Controls` in Storybook. Type and clear a draft, stop a run, expand cancellation details, and test the menu on desktop and mobile. ## Risks - Stop pauses descendants for a parent task. This is the existing pause contract. - A held task can remain active if interruption fails. The UI shows an error instead of claiming termination. - Resume can start multiple assignees when wake-agents is selected. Backlog, blocked, and terminal tasks stay excluded. Existing execution reconciliation remains mandatory where required; Resume never invents action-outcome evidence. - Notification suppression uses the visible task and cached subtree. Notifications for unrelated work remain enabled. ## Model Used OpenAI GPT-6 through Codex. The exact runtime snapshot and context-window limit are not exposed in this session. Used reasoning, tool calls, code execution, and browser inspection. ## 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>