Give agents current Handler docs

Handler’s documentation is available through a hosted MCP server at:

https://handler.alduncanson.com/mcp

Connect an agent to this MCP endpoint when you want it to use Handler reliably instead of guessing command names or output shapes from model memory.

When this is useful

an AI coding assistant needs to call A2A agents from a shell
an internal agent should generate handler --output json ... commands
a workflow needs up-to-date examples for sessions, tasks, and server configuration
you want agents to discover Handler docs through MCP rather than a web browser

Recommended agent instruction

Give the agent a short, operational instruction like this:

Use Handler to send A2A protocol messages, inspect agent cards, and manage A2A
tasks. Prefer structured output with `handler --output json` or
`handler --output ndjson` when another program or agent will consume the result.

Agent-friendly CLI pattern

For single responses, prefer JSON:

handler --output json message send \
  --server production-agent \
  --text "Summarize the current task state"

For streaming responses, prefer newline-delimited JSON:

handler --output ndjson message stream \
  --server production-agent \
  --text "Run the long workflow and stream progress"

Discover commands programmatically

Handler also exposes its own CLI shape for agents and automation:

handler --output json schema

handler --output json describe message send

handler --output json describe task get

Use these commands when an agent needs to construct invocations dynamically. They are also useful for validating wrapper tools, command palettes, and generated documentation.

Core workflows

Agent and MCP workflows

Documentation MCP

Give agents current Handler docs

When this is useful

Recommended agent instruction

Agent-friendly CLI pattern

Discover commands programmatically

​Give agents current Handler docs

​When this is useful

​Recommended agent instruction

​Agent-friendly CLI pattern

​Discover commands programmatically

Give agents current Handler docs

When this is useful

Recommended agent instruction

Agent-friendly CLI pattern

Discover commands programmatically