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DottaandPaperclip
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## Thinking Path > - Paperclip accepts provider callbacks as durable task input. > - Runtime ownership prevents two servers from accepting the same receiver stream. > - Discord and Photon share the lease machinery but have different callback details. > - Moving that shared machinery into Discord would create the wrong platform dependency. > - This pull request extracts common receiver ownership and puts provider callbacks in their own folders. > - The service keeps startup and shutdown coordination. ## Linked Issues or Issue Description Depends on #16183; review against the parent branch. Refs #16180 and #16080. Related open work: #15532 changes Discord command reconciliation scheduling. This extraction preserves existing scheduling. **What existing behavior does this improve?** The structure of shared receiver ownership and Discord/Photon runtime callbacks. **Current behavior** The shared entry point mixes lease acquisition, renewal, provider capability checks, and Photon checkpoint transactions. **Proposed behavior** Put the common lease operations in runtime/ownership.ts and the protocol details in the provider folders. **Reason and benefit** The ownership lifetime stays explicit without making Photon depend on Discord implementation code. ## What Changed - Extract 11 receiver-ownership helpers into runtime/ownership.ts (397 lines). Expose only the operations used by the service. - Extract Photon ownership checks and checkpoint callbacks (44 lines). Retain the same runtime context object. - Extract Discord command and capability reconciliation (112 lines). - Keep the original service-owned lease map, runtime versions, stop tasks, and shutdown sequence. Read shutdown and test overrides through live accessors. - Reduce chat-channels.ts from 6,880 to 6,340 lines, including removal of blank gaps left by extractions. ## Verification - Merge preparation: replayed this stack onto current master after #16180 landed. Preserve master's new Telegram scheduling methods and connection-scoped Photon notifications. Server typecheck, callback syntax audit, and module-boundary check passed. Fresh local integration and wiring checks passed (1,318 tests). The dedicated Photon suite passed 18 before and 18 after the conflict resolution. Current head is 6d52aba35f; CI and review are running. Earlier verification below describes the previous stack commits. - Existing Discord, Photon, and runtime integration cases: 110 passed before and 110 passed after; 1,185 other cases excluded. - Server typecheck, module-boundary check, and git diff --check passed. - Syntax-tree comparison: 11 ownership helpers, two Photon callback bodies, Discord reconciliation, unrelated service functions, and the full public API/shutdown return expression preserve structure. Intentional binding changes are audited. - Both preceding PRs have 55 passing CI checks and current-head 5/5 reviews. - Repository typecheck and build passed earlier in this stack. Final stack checks are recorded below. The first broad local run hit a macOS PostgreSQL shared-memory fixture limit and was interrupted after that failure. - All 55 CI checks pass on df15f9dd9c. Greptile rates that head 5/5 with no inline findings. Tests use real local persistence with fixture runtimes; they do not prove live Discord or Photon execution. - Previous stack validation on #16192 (55417debfe): repository typecheck and build passed; all 1,295 chat integration cases plus 14 source-wiring checks passed locally (1,309 total). All five PRs have current-head 5/5 reviews and 55 passing CI checks. The broad local pnpm test:run hit PostgreSQL shared-memory fixture failures and was interrupted after 868 seconds (exit 130); it is not a local full-suite pass. ## Risks Lease loss and partial startup can create overlapping receivers if cleanup order changes. The service retains the same map objects and shutdown ordering. The ownership module reads current shutdown state, and Photon callbacks retain the exact mutable runtime context reference. No new worker or timer starts during module initialization. ## Model Used OpenAI GPT-6 via Codex, with code execution and repository tools. The precise serving variant 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 - [ ] 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>