## Thinking Path
> - Paperclip orchestrates AI agents for zero-human companies
> - A core part of that is the operator experience around reading issue
state, agent chat, and sub-task structure
> - The current branch had a long run of issue-detail and issue-list UX
fixes that all improve how humans follow and steer active work
> - Those changes mostly live in the UI/chat surface and should be
reviewed together instead of mixed with workspace/runtime work
> - This pull request packages the issue-detail, chat, markdown, and
sub-issue list improvements into one standalone change
> - The benefit is a cleaner, less jumpy, more reliable issue workflow
on desktop and mobile without coupling it to unrelated server/runtime
refactors
## What Changed
- Stabilized issue chat runtime wiring, optimistic comment handling,
queued-comment cancellation, and composer anchoring during live updates
- Fixed several issue-detail rendering and navigation regressions
including placeholder bleed, local polling scope, mobile inbox-to-issue
transitions, and visible refresh resets
- Improved markdown and rich-content handling with advisory image
normalization, editor fallback behavior, touch mention recovery, and
`issue:` quicklook links
- Refined sub-issue behavior with parent-derived defaults, current-user
inheritance fixes, empty-state cleanup, and a reusable issue-list
presentation for sub-issues
- Added targeted UI tests for the new issue-detail, chat scroll/message,
placeholder-data, markdown, and issue-list behaviors
## Verification
- `pnpm vitest run ui/src/components/IssueChatThread.test.tsx
ui/src/components/MarkdownEditor.test.tsx
ui/src/components/IssuesList.test.tsx
ui/src/context/LiveUpdatesProvider.test.tsx
ui/src/lib/issue-chat-messages.test.ts
ui/src/lib/issue-chat-scroll.test.ts
ui/src/lib/issue-detail-subissues.test.ts
ui/src/lib/query-placeholder-data.test.tsx
ui/src/hooks/usePaperclipIssueRuntime.test.tsx`
## Risks
- Medium: this branch touches the highest-traffic issue-detail UI paths,
so regressions would show up as chat/thread or sub-issue UX glitches
- The changes are UI-heavy and would benefit from reviewer screenshots
or a quick manual browser pass before merge
## Model Used
- OpenAI Codex coding agent (GPT-5-class runtime in Codex CLI; exact
deployed model ID is not exposed in this environment), reasoning
enabled, tool use and local code execution enabled
## 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 run tests locally and they pass
- [x] I have added or updated tests where applicable
- [ ] If this change affects the UI, I have included before/after
screenshots
- [ ] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] I will address all Greptile and reviewer comments before
requesting merge
---------
Co-authored-by: Paperclip <noreply@paperclip.ing>
## Thinking Path
> - Paperclip orchestrates AI agents for zero-human companies
> - The issue detail page displays comment threads with rich timeline
rendering
> - Long threads (100+ items) cause severe typing lag in the comment
composer because every keystroke re-renders the entire timeline
> - CDP tracing confirmed 110ms avg key→paint latency and 60 long tasks
blocking the main thread for 3.7s total
> - This pull request memoizes the timeline, stabilizes callback props,
debounces editor observers, and reduces idle polling frequency
> - The benefit is responsive typing (21ms avg, 5.3× faster) even on
threads with 100+ timeline items
## What Changed
- **CommentThread.tsx**: Memoize `TimelineList` with `useMemo` so typing
state changes don't re-render 143 timeline items; extract
`handleFeedbackVote` to `useCallback`; added missing deps
(`pendingApprovalAction`, `onApproveApproval`, `onRejectApproval`) to
useMemo array
- **IssueDetail.tsx**: Extract inline callbacks (`handleCommentAdd`,
`handleCommentVote`, `handleCommentImageUpload`,
`handleCommentAttachImage`, `handleInterruptQueued`) to `useCallback`
with `.mutateAsync` deps (not full mutation objects) for stable
references; add conditional polling intervals (3s active / 30s idle) for
`liveRuns`, `activeRun`, `linkedRuns`, and timeline queries
- **MarkdownEditor.tsx**: Debounce `MutationObserver` and
`selectionchange` handlers via `requestAnimationFrame` coalescing
- **LiveRunWidget.tsx**: Accept optional `liveRunsData` and
`activeRunData` props to reuse parent-fetched data instead of duplicate
polling
## Verification
- Navigated to [IP address]:3105/PAPA/issues/PAPA-32 (thread with 100+
items)
- Typed in comment composer — lag eliminated, characters appear
instantly
- CDP trace test script (`test-typing-lag.mjs`) confirmed: avg 21ms
key→paint (was 110ms), 5 long tasks (was 60), 0.5s blocking (was 3.7s)
- Ran `pnpm test:run` locally — all tests pass
## Risks
- Low risk. All changes are additive memoization and callback
stabilization — no behavioral changes. Polling intervals are only
reduced for idle state; active runs still poll at 3–5s.
## Model Used
- Claude Opus 4.6 (`claude-opus-4-6`) via Claude Code CLI, with tool use
and extended context
## 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 run tests locally and they pass
- [x] I have added or updated tests where applicable
- [x] If this change affects the UI, I have included before/after
screenshots
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] I will address all Greptile and reviewer comments before
requesting merge
---------
Co-authored-by: Paperclip <noreply@paperclip.ing>
When dragging files like .zip onto the issue description editor, non-image
files are now uploaded as attachments instead of being silently ignored.
Images continue to be handled inline by MDXEditor's image plugin.
Co-Authored-By: Paperclip <noreply@paperclip.ing>
## Thinking Path
> - Paperclip orchestrates AI agents for zero-human companies
> - The inline markdown editor (MarkdownEditor / MDXEditor) is used to
edit agent instructions, issue descriptions, and other content
> - When users paste agent instructions copied from terminals or
consoles, extra leading whitespace is uniformly added to every line
> - PR #2572 fixed markdown structure preservation on paste but did not
address the leading whitespace (dedent) problem
> - This pull request adds a Lexical paste normalization plugin that
strips common leading whitespace and normalizes line endings before
MDXEditor processes pasted content
> - The benefit is that pasted content from terminals/consoles renders
correctly without manual cleanup
## What Changed
- **`ui/src/lib/normalize-markdown.ts`** — Pure utility that computes
minimum common indentation across non-empty lines and strips it
(dedent), plus CRLF → LF normalization
- **`ui/src/lib/paste-normalization.ts`** — Lexical `PASTE_COMMAND`
plugin at `CRITICAL` priority that intercepts plain-text pastes,
normalizes the markdown, and re-dispatches cleaned content for MDXEditor
to process. Skips HTML-rich pastes.
- **`ui/src/components/MarkdownEditor.tsx`** — Registers the new plugin;
updates PR #2572's `handlePasteCapture` to use `normalizeMarkdown()`
(dedent + CRLF) instead of `normalizePastedMarkdown()` (CRLF only) for
the markdown-routing path
- **`ui/src/lib/paste-normalization.test.ts`** — 9 unit tests covering
dedent, CRLF normalization, mixed indent, empty lines, single-line
passthrough, and edge cases
## Verification
- `pnpm --dir ui exec vitest run src/lib/paste-normalization.test.ts` —
9 tests pass
- Manual: paste indented agent instructions from a terminal into any
inline markdown editor and confirm leading whitespace is stripped
## Risks
- Low risk. The plugin only activates for plain-text pastes (no HTML
clipboard data). HTML/rich pastes pass through unchanged. Single-line
pastes are not modified. The dedent logic is conservative — it only
strips whitespace common to all non-empty lines.
## Checklist
- [x] I have included a thinking path that traces from project context
to this change
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [ ] If this change affects the UI, I have included before/after
screenshots
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] I will address all Greptile and reviewer comments before
requesting merge
---------
Co-authored-by: Paperclip <noreply@paperclip.ing>
Supersedes #2499.
## Thinking Path
1. **Project context**: Paperclip uses a markdown editor
(`MarkdownEditor`) for document editing. Users expect to paste
markdown-formatted text from external sources (like code editors, other
documents) and have it render correctly.
2. **Problem identification**: When users paste plain text containing
markdown syntax (e.g., `# Heading`, `- list item`), the editor was
treating it as plain text, resulting in raw markdown syntax being
displayed rather than formatted content.
3. **Root cause**: The default browser paste behavior doesn't recognize
markdown syntax in plain text. The editor needed to intercept paste
events and detect when the clipboard content looks like markdown.
4. **Solution design**:
- Create a utility (`markdownPaste.ts`) to detect markdown patterns in
plain text
- Add a paste capture handler in `MarkdownEditor` that intercepts paste
events
- When markdown is detected, prevent default paste and use
`insertMarkdown` instead
- Handle edge cases (code blocks, file pastes, HTML content)
## What
- Added `ui/src/lib/markdownPaste.ts`: Utility to detect markdown
patterns and normalize line endings
- Added `ui/src/lib/markdownPaste.test.ts`: Test coverage for markdown
detection
- Modified `ui/src/components/MarkdownEditor.tsx`: Added paste capture
handler to intercept and handle markdown paste
## Why
Users frequently copy markdown content from various sources (GitHub,
documentation, notes) and expect it to render correctly when pasted into
the editor. Without this fix, users see raw markdown syntax (e.g., `#
Title` instead of a formatted heading), which degrades the editing
experience.
## How to Verify
1. Open any document in Paperclip
2. Copy markdown text from an external source (e.g., `# Heading\n\n-
Item 1\n- Item 2`)
3. Paste into the editor
4. **Expected**: The content should render as formatted markdown
(heading + bullet list), not as plain text with markdown syntax
### Test Coverage
```bash
cd ui
npm test -- markdownPaste.test.ts
```
All tests should pass, including:
- Windows line ending normalization (`\r\n` → `\n`)
- Old-Mac line ending normalization (`\r` → `\n`)
- Markdown block detection (headings, lists, code fences, etc.)
- Plain text rejection (non-markdown content)
## Risks
1. **False positives**: Plain text containing markdown-like characters
(e.g., a paragraph starting with `#` as a hashtag) may be incorrectly
treated as markdown. The detection uses a heuristic that requires
block-level markdown patterns, which reduces but doesn't eliminate this
risk.
2. **Removed focus guard**: The previous implementation used
`isFocusedRef` to prevent `onChange` from firing during programmatic
`setMarkdown` calls. This guard was removed as part of refactoring. The
assumption is that MDXEditor does not fire `onChange` during
`setMarkdown`, but this should be monitored for unexpected parent update
loops.
3. **Clipboard compatibility**: The paste handler specifically looks for
`text/plain` content and ignores `text/html` (to preserve existing HTML
paste behavior). This means pasting from rich text editors that provide
both HTML and plain text will continue to use the HTML path, which may
or may not be the desired behavior.
---------
Co-authored-by: 馨冉 <xinxincui239@gmail.com>
The portal-rendered mention dropdown could appear off-screen on mobile
devices. Clamp top/left to keep it within the viewport and cap width
to 100vw - 16px.
Co-Authored-By: Paperclip <noreply@paperclip.ing>
The mention suggestion dropdown was getting clipped when typing at the
end of a long description inside modals/dialogs because parent containers
had overflow-y-auto. Render it via createPortal to document.body with
fixed positioning and z-index 9999 so it always appears above all UI.
Co-Authored-By: Paperclip <noreply@paperclip.ing>
The previous fix (validateUrl on linkPlugin) only affected the link dialog,
not the markdown-to-Lexical import path. Lexical's LinkNode.sanitizeUrl()
converts agent:// and project:// URLs to about:blank because they aren't
in its allowlist. Override the prototype method to preserve these schemes
so mention chips render correctly.
Co-Authored-By: Paperclip <noreply@paperclip.ing>
When dragging or pasting an image into a markdown editor field, the cursor
would end up right next to the image making it hard to continue typing.
Now inserts two newlines after the image so a new paragraph is ready.
Co-Authored-By: Paperclip <noreply@paperclip.ing>
MarkdownEditor's plugins useMemo depended on imageUploadHandler, which
was a new arrow function on every parent render. This caused MDXEditor
to reinitialize plugins on each render, firing onChange, which updated
the overlay state in AgentConfigForm, triggering a parent re-render —
creating an infinite "Maximum update depth exceeded" loop.
Fix: use a stable ref for imageUploadHandler so plugins are only created
once (keyed on whether a handler exists, not its identity). Also use a
module-level empty object for env config fallback to avoid unnecessary
EnvVarEditor re-renders.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Rename all workspace packages from @paperclip/* to @paperclipai/* and
the CLI binary from `paperclip` to `paperclipai` in preparation for
npm publishing. Bump CLI version to 0.1.0 and add package metadata
(description, keywords, license, repository, files). Update all
imports, documentation, user-facing messages, and tests accordingly.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Fix project mention insertion to use markdown-level replacement instead
of DOM manipulation. Restructure project validator to accept an optional
workspace when creating a project.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add project mention system using project:// URI scheme with optional
color parameter. Mentions render as colored pill chips in markdown
bodies and the WYSIWYG editor. Autocomplete in editors shows both
agents and projects. Server extracts mentioned project IDs from issue
content and returns them in the issue detail response.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
After tab-completing a mention, the cursor was placed before the
completion instead of after it. The root cause: Lexical's DOM
reconciliation after document.execCommand("insertText") would lose
the browser-set cursor position. Added requestAnimationFrame-based
cursor repositioning that first tries the original text node, then
falls back to searching for the mention text in the DOM.
Also normalizes editor content padding for consistent mention dropdown
positioning.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Use a ref for mentionState so selectMention always reads the latest
value (prevents stale-closure "blink" on click/Enter/Tab)
- Add explicit space key handling to dismiss the popup immediately
- Move Escape handler outside filteredMentions check so it always works
- Sync mentionStateRef on all state transitions
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The old approach used document.execCommand("insertText") to directly
manipulate the contentEditable DOM, but MDXEditor (Lexical) reverted
these changes during reconciliation causing the "blink" bug.
Fix: work at the markdown string level instead — find the @query in
the markdown, replace it with @Name, and update via setMarkdown().
Also add an input event listener alongside selectionchange for more
reliable mention detection (fixes space-to-dismiss).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Replaced plain textarea in CommentThread with MarkdownEditor
for rich markdown editing (no toolbar, compact styling)
- Added @-mention autocomplete to MarkdownEditor:
- Detects @ trigger while typing with cursor-positioned dropdown
- Arrow key navigation, Enter/Tab to select, Escape to dismiss
- Filters mentionable names as user types after @
- Added onSubmit prop to MarkdownEditor for Cmd/Ctrl+Enter support
- Agents from the company are passed as mentionable options
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Introduce MarkdownEditor built on @mdxeditor/editor with headings,
lists, links, quotes, image upload with drag-and-drop, and themed CSS
integration. Add asset image upload API (routes, service, storage) and
wire image upload into InlineEditor multiline mode, NewIssueDialog,
NewProjectDialog, GoalDetail, IssueDetail, and ProjectDetail
description fields. Tighten prompt template editor styling.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
