Claude Agent via ACP: scheduled wake-ups never deliver — spinner hangs indefinitely

[daniel-agentee]

Reproduction steps

1. Open Zed, ensure Claude Agent is installed via the ACP Registry (type: registry, claude-acp).
2. Open the agent panel, start a new Claude Agent thread.
3. Send: Set a timer for one minute.
4. Observe: Claude calls a scheduling tool (e.g. ScheduleWakeup with delaySeconds, or CronCreate). The synchronous tool result appears immediately ("Next wakeup scheduled for HH:MM").
5. Wait until well past the scheduled time (e.g. 90s).

Control: same prompt in standalone claude CLI

Running claude directly in a terminal (same version, same machine, same prompt) the wake-up fires correctly:

• Bash(date "+%M %H %d %m") → 30 19 27 04
• CronCreate(31 19 27 4 *: Timer is up …) → Scheduled 3cad393e
• * Running scheduled task (Apr 27 7:31pm)
• ⏰ One minute is up.

This isolates the failure to Zed's ACP integration (or the claude-agent-acp adapter) rather than Claude Code itself.

Current vs. Expected behavior

Expected: The wake-up fires and Claude posts the follow-up turn ("⏰ One minute is up.") — exactly as it does in the CLI.

Actual: Spinner persists indefinitely. No follow-up turn ever appears in the thread. UI is otherwise responsive.

Zed version and system specs

Zed: v0.233.10+stable.250.350f33871e84d5ed83a403523e9490b9bf014a94 (Zed)
OS: macOS 15.6.1
Memory: 36 GiB
Architecture: aarch64

Attach Zed log file

nothing relevant in here from the time of my repro:

2026-04-27T19:43:37+02:00 ERROR [crates/git_ui/src/git_panel.rs:3512] git store was dropped
2026-04-27T19:43:49+02:00 ERROR [crates/agent_ui/src/agent_panel.rs:155] Error("unknown variant ClaudeCode, expected one of NativeAgent, TextThread, native_agent, Custom, custom", line: 1, column: 44)
2026-04-27T19:43:49+02:00 ERROR [project::context_server_store] Failed to create context server configuration from settings: from extension "Postgres Context Server" version 0.0.5: missing field database_url
2026-04-27T19:44:06+02:00 ERROR [crates/agent_ui/src/agent_panel.rs:155] Error("unknown variant ClaudeCode, expected one of NativeAgent, TextThread, native_agent, Custom, custom", line: 1, column: 44)
2026-04-27T19:44:06+02:00 ERROR [project::context_server_store] Failed to create context server configuration from settings: from extension "Postgres Context Server" version 0.0.5: missing field database_url
2026-04-27T19:44:14+02:00 ERROR [crates/gpui/src/window.rs:1299] window not found
2026-04-27T19:44:14+02:00 ERROR [crates/gpui/src/window.rs:1218] window not found
2026-04-27T19:44:14+02:00 ERROR [crates/gpui/src/window.rs:1291] window not found
2026-04-27T19:44:15+02:00 ERROR [crates/gpui/src/window.rs:1299] window not found
2026-04-27T19:44:15+02:00 ERROR [crates/gpui/src/window.rs:1218] window not found
2026-04-27T19:44:15+02:00 ERROR [crates/gpui/src/window.rs:1284] window not found
2026-04-27T19:44:15+02:00 ERROR [crates/gpui/src/window.rs:1291] window not found
2026-04-27T19:44:29+02:00 INFO [zed] ========== starting zed version 0.233.10+stable.250.350f33871e84d5ed83a403523e9490b9bf014a94, sha 350f338 ==========
2026-04-27T19:44:29+02:00 INFO [crashes] crash signal handlers installed
2026-04-27T19:44:29+02:00 INFO [crashes] spawning crash handler process
2026-04-27T19:44:29+02:00 INFO [zed] Using git binary path: "/Applications/Zed.app/Contents/MacOS/git"
2026-04-27T19:44:29+02:00 INFO [crashes] connected to crash handler process after 100ms
2026-04-27T19:44:29+02:00 INFO [crashes] crash handler registered
2026-04-27T19:44:29+02:00 INFO [extension_host] extensions updated. loading 13, reloading 0, unloading 0
2026-04-27T19:44:29+02:00 INFO [auto_update] Auto Update: checking for updates
2026-04-27T19:44:29+02:00 INFO [workspace] Rendered first frame
2026-04-27T19:44:30+02:00 INFO [agent_ui::agent_panel] last active thread 47d52159-1145-4b5a-baac-4865ee74dcfc is archived or missing, skipping restoration
2026-04-27T19:44:30+02:00 INFO [agent_ui::agent_panel] last active thread 47d52159-1145-4b5a-baac-4865ee74dcfc is archived or missing, skipping restoration
2026-04-27T19:44:30+02:00 INFO [util] set environment variables from shell:/bin/zsh, path:/Users/danielstojanovic/bin/gam7:/Users/danielstojanovic/bin:/Users/danielstojanovic/.bun/bin:/usr/local/opt/icu4c@76/sbin:/usr/local/opt/icu4c@76/bin:/usr/local/opt/postgresql@17/bin:/usr/local/opt/postgresql@16/bin:/usr/local/opt/postgresql@15/bin:/usr/local/opt/postgresql/bin:/Users/danielstojanovic/.nvm/versions/node/v22.16.0/bin:/Users/danielstojanovic/.yarn/bin:/Users/danielstojanovic/.config/yarn/global/node_modules/.bin:/usr/local/bin:/usr/local/bin:/usr/local/opt/python/libexec/bin:/Library/Frameworks/Python.framework/Versions/3.11/bin:/usr/local/bin:/opt/local/bin:/opt/local/sbin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Library/Frameworks/Python.framework/Versions/3.11/bin/:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/Library/Apple/usr/bin:/Users/danielstojanovic/bin/gam7:/Users/danielstojanovic/bin:/Users/danielstojanovic/.bun/bin:/Users/danielstojanovic/.local/bin:/usr/local/opt/icu4c@76/sbin:/usr/local/opt/icu4c@76/bin:/usr/local/opt/postgresql@17/bin:/usr/local/opt/postgresql@16/bin:/usr/local/opt/postgresql@15/bin:/usr/local/opt/postgresql/bin:/Users/danielstojanovic/.nvm/versions/node/v22.16.0/bin:/Users/danielstojanovic/.yarn/bin:/Users/danielstojanovic/.config/yarn/global/node_modules/.bin:/usr/local/opt/python/libexec/bin:/Library/Frameworks/Python.framework/Versions/3.11/bin:/opt/local/bin:/opt/local/sbin:/Users/danielstojanovic/.cargo/bin:/Applications/Ghostty.app/Contents/MacOS:/Applications/Obsidian.app/Contents/MacOS:/Applications/Obsidian.app/Contents/MacOS:/Applications/Obsidian.app/Contents/MacOS
2026-04-27T19:44:31+02:00 INFO [node_runtime] using Node.js found on PATH: SystemNodeRuntime { node: "/Users/danielstojanovic/.nvm/versions/node/v22.16.0/bin/node", npm: "/Users/danielstojanovic/.nvm/versions/node/v22.16.0/bin/npm", scratch_dir: "/Users/danielstojanovic/Library/Application Support/Zed/node" }
2026-04-27T19:44:31+02:00 ERROR [project::context_server_store] Failed to create context server configuration from settings: from extension "Postgres Context Server" version 0.0.5: missing field database_url
2026-04-27T19:44:32+02:00 INFO [git::repository] opening git repository at "/Users/danielstojanovic/code/agentic-core/.git" using git binary "/usr/local/bin/git"
2026-04-27T19:44:32+02:00 INFO [git::repository] opening git repository at "/Users/danielstojanovic/code/agentic-core/.git" using git binary "/usr/local/bin/git"
2026-04-27T19:44:32+02:00 ERROR [project::context_server_store] Failed to create context server configuration from settings: from extension "Postgres Context Server" version 0.0.5: missing field database_url
2026-04-27T19:44:32+02:00 INFO [git::repository] opening git repository at "/Users/danielstojanovic/code/claire/.git" using git binary "/usr/local/bin/git"
2026-04-27T19:44:32+02:00 INFO [git::repository] opening git repository at "/Users/danielstojanovic/code/claire/.git" using git binary "/usr/local/bin/git"

Relevant Zed settings

• Zed: 0.233.10+stable.250.350f33871e84d5ed83a403523e9490b9bf014a94
• Claude Code: 2.1.111
• OS: macOS
• Agent registration: claude-acp via ACP Registry (type: "registry")

Relevant Keymap

keymap.json

(for AI issues) Model provider details

• Provider: Anthropic via Claude Max subscription (Claude Code via ACP)
• Model Name: Claude Opus 4.7 (1M context, xhigh effort)
• Mode: Agent Panel
• Other details: External agent via ACP Registry (claude-acp, type: "registry"). Claude Code v2.1.111. NODE_OPTIONS=--max-old-space-size=2048 set in agent_servers config. MCP servers active: Postgres (disabled at time of repro), Context7, Puppeteer.

If you are using WSL on Windows, what flavor of Linux are you using?

None

[nertzy]

For now I can work around by sending another message like "continue" but of course this is not ideal.