[BUG] Duplicate agents being listed

[waldroje]

Preliminary Checks

• I have read the Code of Conduct
• I have searched existing issues to ensure this is not a duplicate
• This report contains only technical information about a bug

Affected Subagent

All plugins

Bug Description

I am trying to figure out if this only applies to me, but after installing a plugin, and then listing /agents, I am seeing each agent show up 2x... I have gone as far as removing everything from .claude/ except the .credentials.json, and re-added marketplace, and then re-installed plugin, but got same behavior...

Steps to Reproduce

added wshobson/agents to marketplace
/plugin install quantitative-trading
/agents shows...

│ Agents │
│ 8 agents │
│ │
│ ❯ Create new agent │
│ │
│ Plugin agents │
│ quantitative-trading:quant-analyst · sonnet │
│ quantitative-trading:risk-manager · haiku │
│ quantitative-trading:quant-analyst · sonnet │
│ quantitative-trading:risk-manager · haiku │
│ │
│ Built-in agents (always available) │
│ general-purpose · sonnet │
│ statusline-setup · sonnet │
│ Explore · haiku │
│ Plan · sonnet

Expected Behavior

not expecting the duplicated Plugin agents

Additional Context

No response

[wshobson]

Hey @waldroje! Thanks for reporting this. After investigating, this is actually a Claude Code CLI bug, not an issue with this plugin repository.

Why This Isn't a Plugin Issue

Plugins are just static markdown files—each agent in quantitative-trading is defined exactly once. The /agents command and how it displays agents is entirely controlled by Claude Code's CLI, not the plugin files. See the official plugin docs for how this works.

Known Related Bugs

There are several confirmed Claude Code bugs related to agent listing:

• #10668 - Recent regression causing tool/agent duplication
• #5280 - /agents displays incorrect information
• #4728, #4773 - Agent detection/listing problems

The duplication is likely caused by Claude Code's enumeration logic (double-registration, cache issues, or the recent regression).

Where to Report

Please file this at https://github.com/anthropics/claude-code/issues with the bug label, steps to reproduce, and your Claude Code version.