function doc-agent --description "Invoke Synclaude as a documentation-focused sub-agent"
    # Define available docsets
    set -l available_sets go

    # Docset: go
    set -l go_tools "go doc"
    set -l go_allowed_tools "Bash(go doc:*)"
    # These aren't global because WebFetch might be useful later for
    # obtaining docs from pages that don't have CLI tooling
    set -l go_disallowed_tools "Bash(*) Explore Edit Read WebFetch WebSearch Glob Grep NotebookEdit NotebookRead SlashCommand Task Write"
    set -l go_usage "\
Looking up Go stdlib, types, functions, methods, interfaces, or third-party \
package APIs, asking about usage, combining functions from across APIs, etc."
    set -l go_system_prompt "\
You are a focused documentation agent for Go. Use 'go doc' to look up \
information about Go packages, types, functions, methods, and other symbols. \
Look at specific symbols rather than reading entire packages unless necessary \
to understand context. Answer queries thoroughly. You are disallowed from \
running any tool but Bash to execute `go doc` subcommands. You _must_ use\
`go doc` to answer the query and nothing else."

    argparse 'h/help' 's/set=' 'm/model=' -- $argv
    or return 1

    # Show help if requested
    if set -q _flag_help
        echo "Usage: doc-agent -s <set> '<query>'"
        echo
        echo "Options:"
        echo "  -s, --set     Documentation set to use (required)"
        echo "  -h, --help    Show this help message"
        echo
        echo "Available documentation sets:"
        echo

        for docset in $available_sets
            set -l tools_var "$docset"_tools
            set -l usage_var "$docset"_usage

            echo "- $docset"
            echo "  - Allowed tools: $$tools_var"
            echo "  - When to use: $$usage_var" | fold -s -w 78 | sed '1!s/^/    /'
            echo
        end

        echo "Tips:"
        echo "- Encourage looking at specific symbols rather than entire"
        echo "  packages unless context requires it."
        echo "- The doc-agent will only have access to its specific"
        echo "  documentation tools; it can't read files, search the web, etc."
        return 0
    end

    # Validate required arguments
    if not set -q _flag_set
        echo "Error: --set/-s is required" >&2
        echo "Run 'doc-agent -h' for usage information" >&2
        return 1
    end

    # Validate docset exists
    if not contains $_flag_set $available_sets
        echo "Error: unknown documentation set '$_flag_set'" >&2
        echo "Run 'doc-agent -h' to see available sets" >&2
        return 1
    end

    # Configure the doc set
    switch $_flag_set
        case go
            set allowed_tools $go_allowed_tools
            set disallowed_tools $go_disallowed_tools
            set system_prompt $go_system_prompt

        case '*'
            echo "Error: unknown documentation set '$_flag_set'" >&2
            return 1
    end

    synu claude -H "hf:zai-org/GLM-4.7" -l "hf:zai-org/GLM-4.7" --model sonnet \
        --allowed-tools "$allowed_tools" \
        --disallowed-tools "$disallowed_tools" \
        --append-system-prompt "$system_prompt" \
        -p $argv
end