[BUG] Lead agent crashes with "toolUseContext.getAppState is not a function" when a teammate requests permission (regression in 2.1.93–2.1.112)
Resolved 💬 3 comments Opened Apr 17, 2026 by AhmadMasry Closed Apr 18, 2026
Preflight Checklist
- [x] I have searched existing issues and this hasn't been reported yet
- [x] This is a single bug report (please file separate reports for different bugs)
- [x] I am using the latest version of Claude Code
What's Wrong?
When running an agent team in tmux/iTerm2 split-pane mode, the
lead agent crashes the moment a teammate requests a tool
permission. The permission prompt never renders — instead the lead
throws:
ERROR H.toolUseContext.getAppState is not a function.
(In 'H.toolUseContext.getAppState()',
'H.toolUseContext.getAppState' is undefined)Stack trace points into the permission-prompt telemetry hook aroundcli.js:8231 — specifically the useEffect in function By that
reads H.toolUseContext.getAppState().toolPermissionContext.mode
when the prompt component mounts. The toolUseContext object is
present but its getAppState method is undefined, consistent with
the context being rehydrated from the filesystem mailbox across
processes (function references lost during serialization).
100% reproducible on 2.1.112 — crashes every single time a teammate
hits any permission prompt.
What Should Happen?
The lead should render the teammate's permission prompt so it can
be approved or denied, as described in the agent-teams docs
("Teammate permission requests bubble up to the lead").
Error Messages/Logs
ERROR H.toolUseContext.getAppState is not a
function. (In 'H.toolUseContext.getAppState()',
'H.toolUseContext.getAppState' is undefined)
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ion:q,messages:K,signal:O}){if(!Uf8())return
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-<anonymous (/$bunfs/root/src/entrypoints/cli.js:8231
:15642)
- qX (/$bunfs/root/src/entrypoints/cli.js:477:63169)
- sPH (/$bunfs/root/src/entrypoints/cli.js:477:76220)
- ov (/$bunfs/root/src/entrypoints/cli.js:477:76101)
- sPH (/$bunfs/root/src/entrypoints/cli.js:477:76199)
- ov (/$bunfs/root/src/entrypoints/cli.js:477:76101)
- sPH (/$bunfs/root/src/entrypoints/cli.js:477:76199)
- ov (/$bunfs/root/src/entrypoints/cli.js:477:76101)
- sPH (/$bunfs/root/src/entrypoints/cli.js:477:76199)
- ov (/$bunfs/root/src/entrypoints/cli.js:477:76101)Steps to Reproduce
- On Claude Code 2.1.112, launch inside iTerm2 via
tmux -CC new-session (e.g. using the alias above).
- Create an agent team that spawns at least one teammate in a
split pane.
- Ask the lead to delegate a task to the teammate that will require
a permission prompt (any Bash command not in permissions.allow,
any Edit/Write, or any MCP tool call).
- The moment the teammate reaches the tool call, the lead pane
crashes with the error above. The teammate pane stalls
indefinitely waiting for a response that will never come.
Downgrading to 2.1.92 via the claude-code cask makes the same
reproduction steps work correctly: the teammate's permission prompt
appears on the lead and can be approved or denied normally.
Claude Model
Opus
Is this a regression?
Yes, this worked in a previous version
Last Working Version
2.1.92
Claude Code Version
2.1.112
Platform
Anthropic API
Operating System
macOS
Terminal/Shell
iTerm2
Additional Information
- Claude Code version: 2.1.112 (installed via Homebrew cask
claude-code@latest)
- Last known good version: 2.1.92 (installed via Homebrew cask
claude-code)
- macOS: 26.4.1
- iTerm2: Build 3.6.9
- tmux: 3.6a
- Launch: iTerm2 →
tmux -CC new-session(via a shell alias, shown
below)
teammateMode:"auto"(default)
Launch alias used:
claude-tmux() {
local session_name="claude-$(basename "$PWD")"
if [[ -n "$TMUX" ]]; then
claude "$@"
return
fi
local cmd="claude"
(( $# > 0 )) && cmd+=" $(printf '%q ' "$@")"
tmux -CC new-session -A -s "$session_name" -c "$PWD" "$cmd"
}This issue has 3 comments on GitHub. Read the full discussion on GitHub ↗