## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work > - The task chat shows what an agent did during a run, including each tool call > - Codex and Claude both report the patch for every file edit, but Paperclip dropped it. Claude's ACP `diff` content was never read. The Codex `fileChange` item became a generic item with no patch. Codex `turn/diff/updated` had no native-runner mapping > - A reviewer could not see what an agent changed without opening the workspace > - This pull request carries a bounded patch on each edit call and shows it in the edit row. Each turn that changed files ends with a "Changed in this turn" card > - The benefit is that a reviewer can check every change in the conversation, with the same view for Codex and Claude ## Linked Issues or Issue Description Refs #19252 (precedent: canonical `plan.updated` events as a docked plan card). **Subsystem affected** Paperclip runner (Rust and TypeScript canonical event mapping), PRP provider-event schema, and the task-chat UI. **Problem or motivation** Edit rows say "Edited a file" with no content. Claude Edit/Write `diff` content is lost after the ACPX sidecar. The Codex native runner drops `fileChange.changes` and `turn/diff/updated`. The existing workspace-changes card showed a raw text patch in a dialog, and only on the in-process Codex path. **Proposed solution** Add an optional, bounded `fileChanges` list to `paperclip.tool.execution.v1`. Fill it from Codex `fileChange` items and Claude ACP `diff` content. Map Codex `turn/diff/updated` to `workspace.change.updated` on the native runner. In the UI, show `+N −M` on each edit row, open a compact colored diff, and end the turn with the change set. **Alternatives considered** A runner-side git diff at turn end. It needs workspace access and extra cost on every turn. The harness patches are already available. For Claude, the UI builds the turn card from the edit rows instead of new per-turn runner state. ## What Changed - Protocol: optional `fileChanges[]` on `toolExecution` in `provider-event.schema.json`, with the regenerated schema bundle, validators and manifest. Paths are workspace-relative. A patch is at most 32 KiB, and a call has at most 32 files. - Runner (Rust): new `tool_file_changes.rs`. A Codex `fileChange` item now also emits `tool.execution.*` with `fileChanges`; the native item event stays for the recovery and progress projections. `turn/diff/updated` becomes `workspace.change.updated`. `normalize_acpx_tool_call` re-validates the sidecar's `fileChanges`. `normalize_codex_notification_in` resolves absolute paths against the session cwd. - Runner (Rust): `has_bounded_rich_display_shape` accepts schema-valid workspace diffs. Without this change, durable storage cut each patch string to a 4 KiB preview. Patches use the uncapped secret redactor. - Runner (TS): new `tool-file-changes.ts`. The ACPX sidecar computes `fileChanges` from ACP `diff` content with the working directory. The in-process Codex and ACPX mappers do the same, with an optional `context` argument. - UI: new `TaskChatDiffView` (colored rows, hunk labels, a height cap, "Show N more lines"). Edit rows show counts and the diff. Collapsed activity groups show edit totals. The workspace card is now "Changed in this turn", with in-place per-file diffs, and it sits at the end of the turn. When a harness sends no whole-turn diff (Claude), the card is built from the edit rows. A change set is marked complete when its run ends. - UI: `native-run-events.ts` maps `workspace.change.updated` and attaches each edit's latest patch to its row (the `diff` transcript entries now carry `toolUseId`). - Design tokens: `--diff-add-*`, `--diff-remove-*` and `--sz-edit-diff-max-h` come from the status icon hues. - Storybook: `Tasks/Edit diffs` story. Docs: `doc/run-log-events.md`. ## Verification - Real runs on a local instance (`test-drive`, native runner): - Codex (`gpt-5.6-sol`): the "Applied a patch" rows show `+9` and `+35 −2` with their diffs. The turn ends with "Changed in this turn", 2 files, `+42`, from `turn/diff/updated`. - Claude (`claude-opus-5-5` via ACPX): the Write and Edit rows show `+5`, `+14 −1` and `+9` with correct hunks. The turn card is built from the edit rows. - Codex model note: with `gpt-5.4`, pinned Codex 0.160 reports "model metadata not found". The model then wrote files through the shell, so no `fileChange` items occurred. - `pnpm check:token-gates`: all gates clean. - `pnpm --filter @paperclipai/ui exec vitest run src/components/task-chat src/components/transcript src/adapters`: 1073 passed. - `packages/paperclip-runner`: `vitest run src/provider-events.test.ts src/tool-file-changes.test.ts src/cli/acpx-runtime-sidecar.test.ts` passed. `check:protocol-types` and `check:protocol-manifest` match. - `cargo test -p paperclip-runner-core --lib provider_events tool_file_changes`: passed. `cargo fmt --check`: clean. - Storybook: open `Tasks and conversations/…/Tasks/Edit diffs`. ## Risks - Larger payloads: an edit call can carry up to 96 KiB of patch in Rust, and the sidecar keeps 48 KiB under its 128 KiB frame. Above the budget, a file keeps its counts and drops its patch (`diffTruncated`). - Redaction: each patch goes through the shared secret redactor. Before this change, a 4 KiB preview cap also applied. - Claude turn card: it joins each edit's patch in order. It is not a net diff. For a file the turn created, the counts are net and exact. For an existing file, the counts are summed over its edits. - The workspace card moves to the end of the turn. One adapter test changed to match. - Local only: four Linux cgroup `task_memory` Rust tests fail on macOS. They do not touch these modules. ## Model Used Claude Opus 5.5 (`claude-opus-5-5`), via Claude Code with tool use (shell, browser and file editing) and a long context window. ## 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 - [ ] Greptile is 5/5 with no open P2s, recommendations, or follow-ups - [x] I will address all Greptile and reviewer comments before requesting merge 🤖 Generated with [Claude Code](https://claude.com/claude-code) --------- Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
@paperclipai/ui
Published static assets for the Paperclip board UI.
What gets published
The npm package contains the production build under dist/. It does not ship the UI source tree or workspace-only dependencies.
Storybook
Storybook config, stories, and fixtures live under ui/storybook/.
pnpm --filter @paperclipai/ui storybook
pnpm --filter @paperclipai/ui build-storybook
Typical use
Install the package, then serve or copy the built files from node_modules/@paperclipai/ui/dist.
Editor dependency identity
Keep the root and workspace overrides for @codemirror/state,
@codemirror/view, and @lezer/common aligned. CodeMirror requires shared
extension identity, while Lezer parsers and syntax highlighters require shared
NodeProp IDs. Multiple Lezer copies can crash code-block highlighting with
tags is not iterable. src/lib/codemirror-single-instance.test.ts checks the
installed dependency graph and highlights sample code through the editor's real
language dependencies. GitHub Actions owns regeneration of pnpm-lock.yaml.