$ MEMORY_FILE_PATH=$(mktemp) toolscore mcp test "npx -y @modelcontextprotocol/server-memory@2026.8.31" --probes --allow-writes
╭────────────────────────────────────────────────────────────────────────╮
│ MCP Scorecard: memory-server 0.6.3                                     │
│ Grade C   Score 93%                                                    │
│ Grade A by score, capped because: probe-silent-noop on create_entities │
│ happy 100%  |  edge 100%  |  lint 100%  |  effect 50%                  │
│ MCP 2025-11-25 (initialize handshake)                                  │
╰────────────────────────────────────────────────────────────────────────╯
                             Tools                             
┏━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━┳━━━━━━━━━━━━━┳━━━━━━━━━━━━━┓
┃ Tool                ┃ Scenarios ┃ Avg latency ┃ Def. tokens ┃
┡━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━╇━━━━━━━━━━━━━╇━━━━━━━━━━━━━┩
│ create_entities     │       6/6 │      1.6 ms │         160 │
│ create_relations    │       6/6 │      0.8 ms │         168 │
│ add_observations    │       6/6 │      0.7 ms │         146 │
│ delete_entities     │       6/6 │      0.6 ms │          94 │
│ delete_observations │       6/6 │      0.6 ms │         147 │
│ delete_relations    │       6/6 │      0.5 ms │         166 │
│ read_graph          │       3/3 │      0.4 ms │          45 │
│ search_nodes        │       6/6 │      0.3 ms │          88 │
│ open_nodes          │       6/6 │      0.4 ms │          84 │
└─────────────────────┴───────────┴─────────────┴─────────────┘
Tool definitions cost ~1098 estimated tokens of context across 9 tool(s).
                                           Effect probes                                            
┏━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━┳━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
┃ Probe      ┃ Tool             ┃ Result       ┃ Confidence ┃ Detail                               ┃
┡━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━╇━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┩
│ round-trip │ create_entities  │ FAIL         │ high       │ a second write to key                │
│            │                  │              │            │ 'tsp3523e4-name' reported success;   │
│            │                  │              │            │ state unchanged (probe-silent-noop)  │
│ round-trip │ create_relations │ pass         │ high       │ write visible and kept after another │
│            │                  │              │            │ write                                │
│ round-trip │ add_observations │ inconclusive │            │ the write failed with probe values   │
│            │                  │              │            │ (Entity with name                    │
│            │                  │              │            │ tsp7440e8-entityname not found);     │
│            │                  │              │            │ supply values with --arg             │
└────────────┴──────────────────┴──────────────┴────────────┴──────────────────────────────────────┘

Top issues to fix
  1. create_entities  a second write to key 'tsp3523e4-name' reported success; state unchanged 
(probe-silent-noop)
     -> Make the tool report what it did: return an error, or say which items were skipped, instead 
of success when nothing was stored.
