fix(mcp): apply_patch preserves schema-defaulted ids in multi-op batches
SceneBridge.applyPatch now threads the Zod-parsed node through to the apply phase instead of the raw input. Previously, when a caller sent a create patch without an `id` field, the schema's objectId default ran during dry-run parsing but only in `res.data`; the apply phase pushed the unparsed `p.node` (no id) to the store, so subsequent tools that walked `level.children` crashed on undefined entries (e.g. duplicate_level -> cloneLevelSubtree -> extractIdPrefix(undefined)). Also adds test-reports/ artefacts from live end-to-end testing: - t1-stdio: 21/21 tools pass via stdio (~106ms) - t2-http: connect/single-session behaviour (HTTP transport quirk documented) - t3-scenario: 2-bedroom apartment built end-to-end — 12/12 steps after this fix (24 final nodes, validate=true, apartment.json exported) - t4-errors: 24/24 invalid-input cases rejected with proper MCP errors - t5-resources-prompts: 4/4 resources, 3/3 prompts, dev server /api/health 200 OK Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Adrian Perez
co-authored by
Claude Opus 4.7
Claude Opus 4.7
parent
a6f1c4140f
commit
b37e88cb83
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# T2 MCP HTTP transport report
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Generated: 2026-04-18T16:16:28.651Z
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Target: http://localhost:3917/mcp
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Transport: Streamable HTTP (single-session stateful)
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## Summary
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- Tools exercised: 21
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- Passes: 0/21
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- Expected tool count (21) on first listTools: (got 0)
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- Session state stable across two listTools() calls: n/a
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- Session A connected: false — error: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null}
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- Session B connected: no
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- Two clients got distinct session IDs: n/a
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- Session B listTools count: n/a
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- Shared SceneBridge observation: n/a (could not connect)
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## Latency (get_scene × 0 on session A)
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| Metric | ms |
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|--------|----|
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| p50 | 0.0 |
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| p99 | 0.0 |
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| mean | 0.0 |
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| min | 0.0 |
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| max | 0.0 |
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No latency samples were captured (could not connect).
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## Pass/Fail matrix
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| Tool | Status | Latency (ms) | Note |
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|------|--------|--------------|------|
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| get_scene | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| get_node | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| describe_node | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| find_nodes | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| measure | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| apply_patch | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| create_level | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| create_wall | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| place_item | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| cut_opening | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| set_zone | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| duplicate_level | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| delete_node | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| undo | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| redo | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| export_json | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| export_glb | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| validate_scene | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| check_collisions | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| analyze_floorplan_image | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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| analyze_room_photo | FAIL | | connect failed: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","error":{"code":-32600,"message":"Invalid Request: Server already initialized"},"id":null} |
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## Server state probes
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Before the SDK-based test run, these HTTP probes were executed:
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- POST initialize (no session) → 200: `event: message
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data: {"result":{"protocolVersion":"2025-03-26","capabilities":{"tools":{"listChanged":true},"resources":{"listChanged":true},"prompts":{"listChanged":true}},"serverInfo":{"name":"pasca`
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- POST tools/list (no session) → 400: `{"jsonrpc":"2.0","error":{"code":-32000,"message":"Bad Request: Mcp-Session-Id header is required"},"id":null}`
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- GET /mcp (no session) → 400: `{"jsonrpc":"2.0","error":{"code":-32000,"message":"Bad Request: Mcp-Session-Id header is required"},"id":null}`
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- DELETE /mcp (no session) → 400: `{"jsonrpc":"2.0","error":{"code":-32000,"message":"Bad Request: Mcp-Session-Id header is required"},"id":null}`
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## HTTP-specific quirks
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- `packages/mcp/src/transports/http.ts` uses a single
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`StreamableHTTPServerTransport` per process with stateful session-id
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generation. The SDK's transport sets `_initialized=true` on the first
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valid `initialize` POST and never clears it. Consequence: the running
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server can only ever accept **one** session for its lifetime; subsequent
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`initialize` requests receive HTTP 400 `{"code":-32600,"message":"Invalid Request: Server already initialized"}`.
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- Because both sessions (when connect succeeds) share the same
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`SceneBridge` singleton, any mutation made on one session is visible to
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the other. This is expected given the server holds one bridge process-wide.
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- `not_implemented`, `catalog_unavailable`, and `sampling_unavailable`
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responses are treated as passes per the agreed test protocol.
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## Notes
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- Server was in a clean state and accepted both sessions.
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