Upstream: Claude Code v2.1.305 Assessment

Read the generated assessment and the upstream release notes for Claude Code v2.1.305, then inspect the /upstream skill that produced this issue. Decide whether either of the two hook changes affects sequant and record any required follow-up; done when both changes have been triaged and the assessment accurately reflects the outcome.

Upstream: Claude Code v2.1.305 Assessment

Release: v2.1.305
Released: 2026-10-20
Assessed: 2026-10-26

Summary

Category	Count	Action Required
Breaking Changes	0	None
Name Collisions	0	None
Deprecations	0	None
New Tools	0	None
Hook Changes	2	Issue if it touches sequant
Opportunities	15	Noted for review
No Action	21	None

Actionable

Breaking changes, deprecations, and other items that affect sequant.

1. Hook change: Self-hosted runner: Fixed the orchestrator reporting a spawn-runner hook as time...

Self-hosted runner: Fixed the orchestrator reporting a spawn-runner hook as timed out when a runner it started in the background kept its output open

• Matched keywords: hook, background
• Matched patterns: hook
• Impact: medium

2. Hook change: [VSCode] Changed the message shown when a session does not start in time and no ...

[VSCode] Changed the message shown when a session does not start in time and no hook is running: it now leads with the output logs and lists causes instead of pointing to sign-in and network first

• Matched keywords: hook
• Matched patterns: hook
• Impact: medium

Informational

Opportunities noted for human triage. No individual issues auto-created.

1. Fixed every request failing on Vertex, Bedrock and other providers when the endp...

Fixed every request failing on Vertex, Bedrock and other providers when the endpoint or a gateway rejects tool search, and behind gateways with ToolSearch disallowed or left out of --tools (a 2.1.304 regression): Claude Code now retries without it

• Matched keywords: tool
• Impact: low

2. Fixed /effort and /autocompact settings not applying when the model name dif...

Fixed /effort and /autocompact settings not applying when the model name differed from a modelOverrides value by letter case or a [1m] tag

• Matched keywords: settings
• Impact: low

3. Fixed new worktrees in a bare repository sometimes starting from local HEAD inst...

Fixed new worktrees in a bare repository sometimes starting from local HEAD instead of the default branch, and unchanged subagent worktrees sometimes not being cleaned up

• Matched keywords: subagent
• Impact: low

4. Fixed Bash commands on a full disk failing with a raw ENOSPC file path: the er...

Fixed Bash commands on a full disk failing with a raw ENOSPC file path: the error now says the disk is full and that nothing ran

• Matched keywords: Bash
• Impact: low

5. Fixed an MCP server passed by a cloud session or by the SDK's setMcpServers be...

Fixed an MCP server passed by a cloud session or by the SDK's setMcpServers being replaced later in the session by a same-named server from your own settings

• Matched keywords: MCP, settings
• Matched patterns: mcp
• Impact: low

6. Fixed Claude naming the wrong model for a subagent's work after the subagent swi...

Fixed Claude naming the wrong model for a subagent's work after the subagent switched to a fallback model

• Matched keywords: subagent
• Impact: low

7. Fixed more cases of scheduled Cowork cloud sessions waiting five minutes for eac...

Fixed more cases of scheduled Cowork cloud sessions waiting five minutes for each subagent whose WebFetch needed a URL approval that nobody was there to give

• Matched keywords: subagent, WebFetch
• Impact: low

8. Fixed Workflow resume re-running already-completed pipeline() and parallel()...

Fixed Workflow resume re-running already-completed pipeline() and parallel() agents instead of serving them from the run's journal

• Matched keywords: parallel
• Impact: low

9. Fixed startup warnings printing as raw text above the logo: they now go to the d...

Fixed startup warnings printing as raw text above the logo: they now go to the debug log, and permission rules that restrict nothing show as warning rows under the banner

• Matched keywords: permission
• Matched patterns: permission
• Impact: low

10. Fixed screen reader mode: search boxes now say "Search:" instead of a symbol Voi...

Fixed screen reader mode: search boxes now say "Search:" instead of a symbol VoiceOver read as "telephone recorder", and highlighted prompt text, such as Ctrl+R search matches and "ultrathink", no longer has spaces inside words

• Matched keywords: Read
• Impact: low

11. Self-hosted runner: Fixed repository access failing since 2.1.296 when a git cre...

Self-hosted runner: Fixed repository access failing since 2.1.296 when a git credential helper or askpass program reads its settings through GIT_CONFIG

• Matched keywords: settings
• Impact: low

12. Improved MCP consent dialogs so an Enter meant for the prompt is less likely to ...

Improved MCP consent dialogs so an Enter meant for the prompt is less likely to be taken as Accept

• Matched keywords: MCP
• Matched patterns: permission, mcp
• Impact: low

13. Changed allowedMcpServers to stop filtering managed-mcp.json stdio servers t...

Changed allowedMcpServers to stop filtering managed-mcp.json stdio servers that use ${VAR} only in env: one your allowlist left out now loads on upgrade; use deniedMcpServers to keep it off

• Matched keywords: MCP
• Matched patterns: mcp
• Impact: low

14. Changed plugins that Claude Desktop mounts by path to no longer keep their `allo...

Changed plugins that Claude Desktop mounts by path to no longer keep their allowed-tools when your organization's managed settings set allowManagedPermissionRulesOnly

• Matched keywords: settings
• Matched patterns: permission
• Impact: low

15. [Claude Tag] Improved Claude Tag admin pages in large organizations so plugin, s...

[Claude Tag] Improved Claude Tag admin pages in large organizations so plugin, skill and bundle edits work while the channel list is still loading

• Matched keywords: plugin, skill
• Impact: low

No Action Required

21 changes did not require action:

• Added sandbox.allowNestedUserNamespaces so sandboxed commands on Linux can create user namespaces (Chromium, rootless podman); this lets them get around the sandbox's file protections
• Added CLAUDE_CODE_RETRY_WATCHDOG_USAGE_LIMIT_RECHECK_MS so unattended retry mode (CLAUDE_CODE_RETRY_WATCHDOG) notices a usage limit that was lifted before its reset
• Fixed cloud sessions and teammates not telling Claude when a compaction had to leave the oldest messages out of its summary to fit
• Fixed Remote Control leaving empty "(session)" entries in /resume after switching conversations with /resume
• Fixed /usage rows being cut off in narrow terminals
• Self-hosted runner: Fixed a start script that shares only its stdout with the runner or orchestrator failing with Resource temporarily unavailable when TERM is set (a 2.1.300 regression)
• Improved /usage: each warning is now a one-line fix that names its source, and f applies the fixes; the same fixes appear in VS Code and /doctor
• Improved a mod's Image to draw its picture in iTerm2 3.5 and later with fullscreen rendering, where it showed only its alt text
• Remote Control: Improved the spawn-mode messages: pressing w now says the new mode is saved for the folder, and a later claude remote-control start that uses the saved mode says where it came from
• Changed the /artifacts delete confirmation to take 1 or Enter to keep, 2 to delete, and Esc to cancel; y and n no longer answer it
• Changed a mod's docked pane to stay within 45% of the terminal's width, including a width kept from a wider terminal
• [VSCode] Added a "Running start-up hooks" spinner status, with a screen reader announcement, while SessionStart or Setup hooks run
• [VSCode] Fixed the spinner cutting off "Compacting..." when your spinnerVerbs setting replaces the built-in verbs with short ones
• [Cloud sessions] Fixed the Cloud environments admin page wrongly refusing to save an existing environment with an "installs packages" error
• [Cloud sessions] Improved deleting a self-hosted environment so the dialog and error messages say what blocks the delete and what it will affect
• [Claude Tag] Added public Slack channels Claude hasn't joined to the Claude Tag admin Add place search, so admins can set one up from there
• [Claude Tag] Fixed Claude Tag access bundles so a repository that moved to another GitHub account can be added again
• [Claude Tag] Fixed a routine set up in a Slack DM thread no longer posting after another routine in that thread restarted the conversation; both now keep posting there
• [Claude Tag] Fixed routines set up in a Slack thread reporting success without posting after the conversation ended; those runs are now skipped and the creator is told
• [Code Review] Fixed Code Review sometimes not reviewing the newest commit when several pushes landed on a pull request during a review
• [Code Review] Changed Code Review re-reviews so they no longer open with LGTM while earlier blocking findings are still open

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