claude-code - 💡(How to fix) Fix [BUG] Desktop v1.8555.2 — Customize > Plugins panel greyed/uninteractive; 3 of 5 enabled Anthropic-curated plugins disappear; silent failure

claude-code2026-05-23 05:11:51

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Error Message

After v1.8555.2 applied at 2026-05-22 16:12 PDT, the plugin pipeline succeeded end-to-end with zero errors logged. Excerpts from ~/Library/Logs/Claude/main.log:

  2026-05-22 16:11:13 [info] [LocalPluginsReader] Found 7 local plugins
  2026-05-22 16:11:13 [info] [PluginsFetcher] fetchPluginEnabledState: 6 overrides
  2026-05-22 16:12:18 [info] [LocalPluginsReader] Found 5 enabled local plugins (7 installed)
  2026-05-22 18:22:24 [info] [PluginsFetcher] fetchAccountScopedRemotePlugins: 2 plugins from 1 marketplace(s)
  2026-05-22 18:22:24 [info] [PluginsFetcher] fetchBrowsableRemotePlugins: 47 plugins (offset=0, hasMore=false)

So all upstream paths succeeded:

7 local plugins read, 5 enabled
6 enabled-state overrides tracked
47 browsable remote (Anthropic-curated) plugins fetched
2 account-scoped remote plugins fetched

Filtered the full main.log for the post-16:12 window with:

  grep -iE '\[error\]|exception|TypeError|Cannot read|unhandled|throw' main.log \
    | grep -iE 'plugin|customize|connector|render|migration|installed_plugins|schema'

→ zero matches. No exception, warning, or error was logged in any plugin / customize / connector / renderer / migration / schema code path after the update. The UI freeze is a silent failure: data fetched correctly, controls not rendered/interactable, no diagnostic emitted.

claude.ai-web.log (the renderer-side log) also shows zero plugin-related errors in the same time window.

Root Cause

Related issues filed in the same v1.8555 release window (same release-cluster, distinct user-facing symptoms):

#61618 — "Connector/MCP list visually empty" (labeled duplicate; this issue is a different presentation of plausibly the same root cause)
#61608 — sessions not saved to disk on bundle 1.8555.2 a476c3
#61563 / #61555 / #61559 — CoWork token / Keychain / workspace regressions on v1.8555
#61524 — MCP UtilityProcess spawn timeout; toggling any connector restarts every enabled connector
#61564 — LocalMcpServerManager leaks duplicate local MCPs in app-lifetime pool

Fix Action

Fix / Workaround

Reproducibility:

Persists across full Cmd-Q + relaunch.
Persists across force-quit of all Claude/Anthropic processes + relaunch.
Persists across rename of ~/Library/Application Support/Claude to a backup and fresh-state launch (see "What I Tried" / workarounds section).
Steady-state behavior on every launch, not an intermittent glitch.

Workarounds attempted (none fixed it):

Full Cmd-Q + relaunch
Force-quit all Claude/Anthropic processes + relaunch
Renamed ~/Library/Application Support/Claude/ to a backup and let Desktop rebuild fresh state on next launch (rolled back afterward; the freeze persisted in the fresh-state launch, so the cause is NOT in that plaintext directory)
Updated upstream Honcho plugin marketplace to v0.2.4 via git pull on ~/.claude/plugins/marketplaces/honcho/

Workarounds attempted (none cleared the freeze):

Full Cmd-Q + relaunch
Force-quit all Claude/Anthropic processes + relaunch
Renamed ~/Library/Application Support/Claude/ to a backup and let Desktop rebuild fresh state on next launch — the freeze persisted on the fresh launch, confirming the bug does NOT live in that plaintext directory's caches. Rolled back afterward (state preserved by the rename, restored with one mv).
Updated upstream Honcho plugin marketplace to v0.2.4 via git pull on ~/.claude/plugins/marketplaces/honcho/.

Code Example

After v1.8555.2 applied at 2026-05-22 16:12 PDT, the plugin pipeline succeeded
  end-to-end with zero errors logged. Excerpts from
  ~/Library/Logs/Claude/main.log:

      2026-05-22 16:11:13 [info] [LocalPluginsReader] Found 7 local plugins
      2026-05-22 16:11:13 [info] [PluginsFetcher] fetchPluginEnabledState: 6 overrides
      2026-05-22 16:12:18 [info] [LocalPluginsReader] Found 5 enabled local plugins (7 installed)
      2026-05-22 18:22:24 [info] [PluginsFetcher] fetchAccountScopedRemotePlugins: 2 plugins from 1 marketplace(s)
      2026-05-22 18:22:24 [info] [PluginsFetcher] fetchBrowsableRemotePlugins: 47 plugins (offset=0, hasMore=false)

  So all upstream paths succeeded:
  - 7 local plugins read, 5 enabled
  - 6 enabled-state overrides tracked
  - 47 browsable remote (Anthropic-curated) plugins fetched
  - 2 account-scoped remote plugins fetched

  Filtered the full main.log for the post-16:12 window with:

      grep -iE '\[error\]|exception|TypeError|Cannot read|unhandled|throw' main.log \
        | grep -iE 'plugin|customize|connector|render|migration|installed_plugins|schema'

  → zero matches. No exception, warning, or error was logged in any plugin /
  customize / connector / renderer / migration / schema code path after the
  update. The UI freeze is a silent failure: data fetched correctly, controls
  not rendered/interactable, no diagnostic emitted.

  claude.ai-web.log (the renderer-side log) also shows zero plugin-related
  errors in the same time window.

RAW_BUFFERClick to expand / collapse

Preflight Checklist

I have searched existing issues and this hasn't been reported yet
This is a single bug report (please file separate reports for different bugs)
I am using the latest version of Claude Code

What's Wrong?

After Claude Desktop updated to v1.8555.2 on 2026-05-22 around 16:12 PDT, the Customize > Connectors view broke in two distinct ways:

The Personal plugins panel is greyed out and unclickable. Four entries appear in the sidebar — Aeons gamma, Aeons project, Engineering, and Legal — but none of them can be clicked, toggled, or configured. The panel renders the list, but the interaction layer is dead.
Three Anthropic-curated plugins disappeared entirely from the UI: product-management, marketing, and productivity. All three were enabled and visible before the update; after the update they are not in any section — not Anthropic & Partners, not Personal, not Not Connected.

Additionally, Honcho — which Claude Code CLI's /mcp command confirms is alive as a built-in MCP (plugin:honcho:honcho — connected — 5 tools) — no longer appears in Desktop's Connectors view at all.

Note: Engineering and Legal are Anthropic-curated plugins that have been incorrectly moved into the "Personal plugins" group with the operator's own plugins, in addition to being greyed out.

What Should Happen?

Customize > Connectors should behave the way it did before v1.8555.2:

The Personal plugins panel should list only operator-built plugins (Aeons gamma, Aeons project) and each entry should be clickable, toggleable, and configurable.
All five Anthropic-curated plugins enabled prior to the update — engineering, legal, product-management, marketing, and productivity — should appear under the Anthropic & Partners group (NOT under Personal plugins) and be toggleable.
Honcho should appear in the Connectors view (or the appropriate Plugins group) as a connected built-in MCP, matching its status in Claude Code CLI's /mcp output.

In short: all 15 plugins registered in installed_plugins.json should be correctly rendered, grouped, and interactable in the Customize UI.

Error Messages/Logs

After v1.8555.2 applied at 2026-05-22 16:12 PDT, the plugin pipeline succeeded
  end-to-end with zero errors logged. Excerpts from
  ~/Library/Logs/Claude/main.log:

      2026-05-22 16:11:13 [info] [LocalPluginsReader] Found 7 local plugins
      2026-05-22 16:11:13 [info] [PluginsFetcher] fetchPluginEnabledState: 6 overrides
      2026-05-22 16:12:18 [info] [LocalPluginsReader] Found 5 enabled local plugins (7 installed)
      2026-05-22 18:22:24 [info] [PluginsFetcher] fetchAccountScopedRemotePlugins: 2 plugins from 1 marketplace(s)
      2026-05-22 18:22:24 [info] [PluginsFetcher] fetchBrowsableRemotePlugins: 47 plugins (offset=0, hasMore=false)

  So all upstream paths succeeded:
  - 7 local plugins read, 5 enabled
  - 6 enabled-state overrides tracked
  - 47 browsable remote (Anthropic-curated) plugins fetched
  - 2 account-scoped remote plugins fetched

  Filtered the full main.log for the post-16:12 window with:

      grep -iE '\[error\]|exception|TypeError|Cannot read|unhandled|throw' main.log \
        | grep -iE 'plugin|customize|connector|render|migration|installed_plugins|schema'

  → zero matches. No exception, warning, or error was logged in any plugin /
  customize / connector / renderer / migration / schema code path after the
  update. The UI freeze is a silent failure: data fetched correctly, controls
  not rendered/interactable, no diagnostic emitted.

  claude.ai-web.log (the renderer-side log) also shows zero plugin-related
  errors in the same time window.

Steps to Reproduce

Preconditions:

Claude Desktop on macOS, account with plugins enabled prior to v1.8555.2. Operator's machine had these enabled before the update:
- Anthropic-curated: engineering, legal, product-management, marketing, productivity, plus Skill Creator / MCP Builder and Doc co-authoring
- Personal (operator-built): Aeons gamma, Aeons project
- Built-in MCP: Honcho (plugin:honcho:honcho)

Steps:

Be on a pre-v1.8555.2 Desktop build with the plugins above enabled.
Allow Desktop to auto-update to v1.8555.2 (2026-05-22 ~16:12 PDT).
Open Customize > Connectors after the update applies.

Observed:

Personal plugins panel: four entries shown (Aeons gamma, Aeons project, Engineering, Legal) — all greyed/uninteractive.
Anthropic & Partners group: product-management, marketing, productivity no longer appear in any section.
Connectors view: Honcho is absent (still alive in /mcp on Code CLI).

Reproducibility:

Persists across full Cmd-Q + relaunch.
Persists across force-quit of all Claude/Anthropic processes + relaunch.
Persists across rename of ~/Library/Application Support/Claude to a backup and fresh-state launch (see "What I Tried" / workarounds section).
Steady-state behavior on every launch, not an intermittent glitch.

Claude Model

Other

Is this a regression?

Yes, this worked in a previous version

Last Working Version

Yes, regression. Worked correctly in v1.7196.x (May 12-19, 2026) and all earlier Desktop builds. Broke after v1.8555.0 / v1.8555.2 applied on 2026-05-22.

Claude Code Version

2.1.148

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Other

Additional Information

<!-- Uploading "Plugins_!.png"... —> <!-- Uploading "Plugins_2.png"... —> Additional context / screenshots: Screenshots attached: - Customize > Connectors view showing four greyed Personal-plugin entries - /mcp output from Claude Code CLI showing Honcho as built-in MCP (plugin:honcho:honcho — connected — 5 tools) On-disk state (verified intact): - ~/.claude/plugins/installed_plugins.json was rewritten to new schema {version: 2, plugins: {...}} during today's update; 15 plugins registered correctly including all the ones the UI fails to surface. - ~/.claude/plugins/aeons-gamma/ and ~/.claude/plugins/aeons-project/ source trees intact (since 2026-03-16); .claude-plugin/, commands/, skills/ subdirs all present. Workarounds attempted (none fixed it): - Full Cmd-Q + relaunch - Force-quit all Claude/Anthropic processes + relaunch - Renamed ~/Library/Application Support/Claude/ to a backup and let Desktop rebuild fresh state on next launch (rolled back afterward; the freeze persisted in the fresh-state launch, so the cause is NOT in that plaintext directory) - Updated upstream Honcho plugin marketplace to v0.2.4 via git pull on ~/.claude/plugins/marketplaces/honcho/ Related issues filed in the same v1.8555 release window (same release-cluster, distinct presentations): #61618 (Connectors list visually empty, labeled duplicate), #61608 (sessions not saved to disk on bundle 1.8555.2 a476c3), #61563 #61555 #61559 (CoWork token/Keychain/workspace regressions on v1.8555), #61524 (MCP UtilityProcess spawn timeout; toggling any connector restarts all), #61564 (LocalMcpServerManager duplicates local MCPs). Paste each into its field. ⎿ Stop says: [honcho] response → saved response (2231 chars) ⏺ Ran 10 stop hooks (ctrl+o to expand) ⎿ Stop hook error: Failed with non-blocking status code: Traceback (most recent call last): File "/Users/Seph/.claude/hooks/key-echo-guard.py", line 21, in <module> from credential_patterns import hit_names # noqa: E402 ModuleNotFoundError: No module named 'credential_patterns' ✻ Cogitated for 47s ❯ Additional Information Anything else that might help us understand the issue? Screenshots (drag and drop images here) Configuration files Related files or code Links to repositories demonstrating the issue ⎿ UserPromptSubmit says: [honcho] user-prompt ← context injected (stale) ⏺ Screenshots: - Customize > Connectors view showing four greyed/uninteractive Personal-plugin entries (Aeons gamma, Aeons project, Engineering, Legal) - Claude Code CLI /mcp output showing Honcho listed under "Built-in MCPs (always available)" as plugin:honcho:honcho — connected — 5 tools Configuration files (state verified intact on disk): - ~/.claude/plugins/installed_plugins.json — rewritten to new schema today ({version: 2, plugins: {...}}); 15 plugins correctly registered including every plugin the Customize UI fails to surface or interact with. - ~/Library/Application Support/Claude/claude_desktop_config.json — 9 stdio MCP servers configured (context7, firecrawl, hume, iwork, macos-automator, mempalace, obsidian, supabase, time-mcp), all currently connected. - ~/.claude/plugins/aeons-gamma/ and ~/.claude/plugins/aeons-project/ — custom plugin source trees, intact since 2026-03-16. Workarounds attempted (none cleared the freeze): - Full Cmd-Q + relaunch - Force-quit all Claude/Anthropic processes + relaunch - Renamed ~/Library/Application Support/Claude/ to a backup and let Desktop rebuild fresh state on next launch — the freeze persisted on the fresh launch, confirming the bug does NOT live in that plaintext directory's caches. Rolled back afterward (state preserved by the rename, restored with one mv). - Updated upstream Honcho plugin marketplace to v0.2.4 via git pull on ~/.claude/plugins/marketplaces/honcho/. Related issues filed in the same v1.8555 release window (same release-cluster, distinct user-facing symptoms): - #61618 — "Connector/MCP list visually empty" (labeled duplicate; this issue is a different presentation of plausibly the same root cause) - #61608 — sessions not saved to disk on bundle 1.8555.2 a476c3 - #61563 / #61555 / #61559 — CoWork token / Keychain / workspace regressions on v1.8555 - #61524 — MCP UtilityProcess spawn timeout; toggling any connector restarts every enabled connector - #61564 — LocalMcpServerManager leaks duplicate local MCPs in app-lifetime pool Older same-pattern issues (closed) where Customize panel rendered but failed to surface plugin data: - #31597 (closed not-planned, March 2026) - #48963 (closed, April 2026)

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