2037612 - Render tool call rows in action log

Status: VERIFIED FIXED

(Core :: Machine Learning: Frontend, enhancement)

Description

[Justin Levinsohn]

Attachment: image (13).png

Render tool execution steps using structured tool call rows.

• Each tool call is rendered as a row in the action log
• Tool rows include:
  • tool identifier
  • status indicator
  • expandable control (if applicable)
• Rows render in execution order
• Default view shows high-level progress
• Expanded view may show additional details where available
• Only relevant tool calls are shown (intermediate or noisy steps may be suppressed)
• Multiple tool calls are supported in a single flow
• UI remains readable for both simple and multi-step flows
• Uses existing natural language tabs UI components where possible

Will refine tool calls to display as we build.

Comment 1

[Yubin Jamora]

Attachment: Bug 2037612 - Render tool call rows in action log r=ngrato

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/7397951b9676
https://hg.mozilla.org/integration/autoland/rev/146bfed62e01
Render tool call rows in action log r=ngrato,fluent-reviewers,flod

Comment 3

[Sandor Molnar[:smolnar]]

https://hg.mozilla.org/mozilla-central/rev/146bfed62e01

Comment 4

[Yubin Jamora]

Attachment: Bug 2037612 - Render tool call rows in action log

Original Revision: https://phabricator.services.mozilla.com/D302886

Comment 5

[Phabricator Automation]

firefox-beta Uplift Approval Request

• User impact if declined/Reason for urgency: Smart Window users won't see action logs from the chat assistant response.
• Code covered by automated testing?: yes
• Fix verified in Nightly?: no
• Needs manual QE testing?: yes
• Steps to reproduce for manual QE testing: 1. about:config - browser.smartwindow.enabled = true

2. Toggle smart window icon from top right corner
3. login to use Smart Window
4. Write some prompts like "what memories did you save?"
5. You will see the action log saying like "Checking memories" then "Checked memories"

• Risk associated with taking this patch: low
• Explanation of risk level: low because it will show separately from the chat assistant response. won't affect existing flow.
• String changes made/needed?: Yes but Smart window is only for English now.
• Is Android affected?: no

Comment 6

[Pulsebot]

https://github.com/mozilla-firefox/firefox/commit/0d63c38db654
https://hg.mozilla.org/releases/mozilla-beta/rev/db3f920c0eee

Comment 7

[Rares Doghi, Desktop QA]

Verified as fixed in our latest Beta 152.0b10 and our latest Nightly build 153.0a1 (2026-06-09)