asmhatreandClaude Sonnet 5.5
0006167c24
An incident-desk MCP server with a fixed resource, two resource templates, a prompt, a tool that borrows the client's model (sampling) and a tool that asks the operator to approve a restart (elicitation). Driven by a plain SDK client in JUnit and by raw curl, so the JSON-RPC for both server-to-client requests is committed. Also captured: a client that declared neither capability (a gated tool degrades, an ungated one returns an isError result), a slow client hitting the server request timeout, and protocol=STATELESS silently dropping every tool that takes McpSyncRequestContext (one WARN line, an empty tools/list). Negotiated protocol version is 2025-11-25; the 2026-07-28 spec is not implemented by SDK 2.1.0. No docs/ folder. Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_017ic4b5jAFLJrmUXmbo5EuV
57 lines
1.4 KiB
Plaintext
57 lines
1.4 KiB
Plaintext
# sampling/createMessage on the wire
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## 1. client -> server (POST, answers arrive later on the same session)
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tools/call summarize_incident {"incidentId":"INC-1043"}
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## 2. server -> client, on the SSE stream of that same POST
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{
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"jsonrpc": "2.0",
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"method": "sampling/createMessage",
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"id": "7899c995-7e19-45a9-8b27-a043acabe802-0",
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"params": {
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"messages": [
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{
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"role": "user",
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"content": {
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"type": "text",
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"text": "Summarize this incident log:\n11:02:44 search-api WARN index segment merge running\n11:02:51 search-api INFO p99 latency 840ms (SLO 500ms)\n"
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}
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}
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],
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"systemPrompt": "You are an SRE. Answer in two sentences, no preamble.",
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"includeContext": "none",
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"temperature": 0.2,
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"maxTokens": 120
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}
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}
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## 3. client -> server, a NEW POST carrying the answer (same id as the server's request)
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{
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"jsonrpc": "2.0",
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"id": "7899c995-7e19-45a9-8b27-a043acabe802-0",
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"result": {
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"role": "assistant",
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"content": {
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"type": "text",
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"text": "A segment merge pushed p99 to 840ms against a 500ms SLO."
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},
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"model": "curl-model",
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"stopReason": "endTurn"
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}
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}
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## 4. server -> client, the original tools/call finally completes
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{
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"jsonrpc": "2.0",
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"id": 7,
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"result": {
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"content": [
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{
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"type": "text",
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"text": "A segment merge pushed p99 to 840ms against a 500ms SLO."
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}
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],
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"isError": false
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}
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}
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