a2a-mcp-connector
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": false
} |
| prompts | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| a2a_validateA | Validate ANY standard A2A endpoint's Agent Card and return a readable
report (valid?/checks/warnings). |
| a2a_connectA | Connect to a standard A2A endpoint and start streaming its turns. Validates
the Agent Card first and REFUSES to connect if it isn't usable (returns the
validator report). On success, starts a background session and returns
immediately — then call |
| a2a_wait_turnA | Wait for the next turn's prompt, bounded by |
| a2a_sendA | Submit your reply to the CURRENT pending turn (call a2a_wait_turn first to see the prompt). Returns immediately; call a2a_wait_turn again for the next turn. Rejected if it isn't your turn yet. |
| a2a_statusA | A quick snapshot: connected? a turn pending? session over? any error? Useful to re-orient after a gap in the conversation. |
| a2a_leaveA | Disconnect: cancel the background driver and close the session cleanly. Safe to call even if not connected. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 6 tools
Each tool has a distinct responsibility: validate checks the Agent Card, connect establishes the session, send/wait_turn handle messaging, status reports state, and leave tears down. No functional overlap or ambiguity exists.
All tools use the a2a_ prefix and mostly use verb-led names like connect, send, leave, and validate. The sole exception is a2a_status, which is a noun rather than an imperative verb, but it remains clear and aligned with the overall pattern.
Six tools is appropriate for a focused A2A connector: validation, connection, turn-based messaging, status polling, and disconnection. The toolset is lean without missing necessary lifecycle operations.
The toolset covers the full A2A session lifecycle: validate, connect, send, wait for turn, check status, and leave. No essential operation for interacting with a remote agent over this protocol appears to be missing.