feat: add 'Open in workspace' button to read_file tool cards

[ChonSong]

Summary

Injects an "Open in workspace" button into read_file tool cards so users can jump directly from a chat tool call to the file opened in the workspace file-tree panel.

Problem

After the agent reads a file, the user sees the content in the tool card snippet but there is no click-through to locate that file in the workspace tree or open it in the editor. This breaks the read-edit workflow: you have to manually navigate the file tree to find the file the agent just read.

Solution

Add a Lucide folder-open icon button labelled "Open in workspace" inside the tool card detail section for read kind tools (_toolActionKind returns read). On click it calls openArtifactPath(path) → openFile() → /api/file, the same mechanism used by clicks on artifacts in the workspace panel itself.

static/ui.js — buildToolCard():

• Compute toolReadPath from _toolTargetLabel(tc) for read tools
• Render the workspace-open button inside .tool-card-detail (expanded view)
• Fallback outside the detail div when !hasDetail (cards with no snippet/args)

static/style.css — new classes:

• .tool-card-ws-open — padding wrapper
• .tool-card-ws-open-btn — clean link-style button matching .tool-card-more pattern

Implementation Details

Aspect	Detail
Trigger	toolKind === read(classified by_toolActionKind`)
Path extraction	_toolTargetLabel(tc) — gets path arg from tool call
Open mechanism	openArtifactPath(path) — existing Workspace v1 function
Click handling	event.stopPropagation() prevents tool card toggle; this.dataset.wsPath avoids JS escaping in HTML attribute
Backend	No changes — /api/file → _handle_file_read already uses safe_resolve_ws() (TOCTOU/symlink protection)

Related

• Refs workspace v1 path-based identity architecture

[coderabbitai]

Important

Review skipped

Draft detected.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 341de8a7-ab71-4a06-8c79-acbaf86ff563

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[ChonSong]

Closing — switching to extension approach. See ext/open-in-workspace branch and #5 for the replacement.