Feature Request: Dynamic agent discovery from .claude/agents/ directory

Summary

Agent .md files in ~/.claude/agents/ are not automatically discovered and made available to the Task tool. Only hardcoded agents appear in the available agents list.

Current Behavior

• Agent files exist at ~/.claude/agents/engineering/mobile-app-builder.md with proper frontmatter
• The Task tool has a fixed list of available agents
• Agents like Mobile App Builder are NOT available even though the file exists
• Agents like BarkPark iOS Lead ARE available (presumably registered elsewhere)

Expected Behavior

The Task tool should dynamically discover and load agents from:

1. ~/.claude/agents/ (global agents)
2. <project>/.claude/agents/ (project-specific agents)

Agent File Format

Agents use standard frontmatter:
\\\`yaml
---
name: Mobile App Builder
description: Use when building React Native, iOS, or Android features...
model: sonnet
tools: Read, Write, Edit, Bash, Grep, Glob
permissionMode: acceptEdits
memory: project
skills:

• self-critique-loop
• code-review-standards

---
\\\`

Use Case

Users building custom agent ecosystems (like a 250+ agent studio) need dynamic discovery to:

• Add new agents without modifying Claude Code config
• Share project-specific agents via .claude/agents/ in repos
• Iterate on agent prompts without restarting Claude Code

Environment

• Claude Code version: Latest
• OS: macOS
• 251 agent files currently not being discovered