ShotPulled

List grinders

list_grinders

Read-onlyIdempotent

List grinders registered for the account, with status filter. The id on each row is the number this account knows that record by, counting from 1 — safe to show, and what other tools expect back. Each row carries its maintenance block: every task with its class (S schedule, H habit, Y symptom, A the machine signals it, T technician, N never, U unstated, E event), due state, and the guide to follow.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`status`	No	Filter by status: current, archived, or all. Defaults to current.
`maintenance`	No	How much of each row's maintenance block to include. compact (default): every task with its class, due state, schedule and guide. full: also the maker's own words — quote, source, alternates, the interval as written.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`grinders`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed11 schema fields changedSep 28, 2026
- removedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / muted_until / type
```
Removed value: -"null"
```
- removedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / properties / guide_id / type
```
Removed value: -"null"
```
- removedOutput schema / properties / grinders / items / properties / maintenance / properties / hardness / type
```
Removed value: -"null"
```
- removedOutput schema / properties / grinders / items / properties / maintenance / properties / sensitivity / type
```
Removed value: -"null"
```
- removedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / guide / properties / also_covers / type
```
Removed value: -"null"
```
- removedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / guide / properties / duration_minutes / type
```
Removed value: -"null"
```
- removedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / guide / properties / duration_note / type
```
Removed value: -"null"
```
- removedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / guide / properties / machine_alert / type
```
Removed value: -"null"
```
- removedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / guide / properties / market / type
```
Removed value: -"null"
```
- removedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / schedule / properties / every / type
```
Removed value: -"null"
```
- removedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / schedule / properties / muted_until / type
```
Removed value: -"null"
```

Changed3 schema fields changedSep 28, 2026

addedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / soon
```
Added value: +{
+  "type": "boolean"
+}
```
addedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / soon_at
```
Added value: +{
+  "type": [
+    "null",
+    "string"
+  ]
+}
```

changed

Output schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / required

Previous value: -[
-  "state",
-  "ratio",
-  "basis",
-  "every",
-  "done",
-  "remaining",
-  "lower_bound",
-  "due_at",
-  "overdue_at",
-  "last_at",
-  "every_source",
-  "muted",
-  "muted_until"
-]New value: +[
+  "state",
+  "ratio",
+  "basis",
+  "every",
+  "done",
+  "remaining",
+  "lower_bound",
+  "soon",
+  "soon_at",
+  "due_at",
+  "overdue_at",
+  "last_at",
+  "every_source",
+  "muted",
+  "muted_until"
+]

Changed45 schema fields changedSep 27, 2026

addedInput schema / properties / maintenance

Added value: +{
+  "description": "How much of each row's maintenance block to include. compact (default): every task with its class, due state, schedule and guide. full: also the maker's own words — quote, source, alternates, the interval as written.",
+  "enum": [
+    "compact",
+    "full"
+  ],
+  "type": "string"
+}

changedOutput schema / properties / grinders / items / properties / built_in_machine_id / type
```
Previous value: -"null"New value: +[
+  "integer",
+  "null"
+]
```
addedOutput schema / properties / grinders / items / properties / catalog_id
```
Added value: +{
+  "type": [
+    "null",
+    "string"
+  ]
+}
```
changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / disturbs_note / type
```
Previous value: -[
-  "string",
-  "null"
-]New value: +[
+  "null",
+  "string"
+]
```
changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / epoch_at / type
```
Previous value: -[
-  "string",
-  "null"
-]New value: +[
+  "null",
+  "string"
+]
```
changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / epoch_id / type
```
Previous value: -[
-  "integer",
-  "null"
-]New value: +[
+  "null",
+  "integer"
+]
```
changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / epoch_task / type
```
Previous value: -[
-  "string",
-  "null"
-]New value: +[
+  "null",
+  "string"
+]
```
changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / offset_at / type
```
Previous value: -[
-  "string",
-  "null"
-]New value: +[
+  "null",
+  "string"
+]
```
changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / offset_source / type
```
Previous value: -[
-  "string",
-  "null"
-]New value: +[
+  "null",
+  "string"
+]
```
changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / offset_value / type
```
Previous value: -[
-  "integer",
-  "null"
-]New value: +[
+  "null",
+  "integer"
+]
```

addedOutput schema / properties / grinders / items / properties / maintenance / properties / catalog

Added value: +{
+  "additionalProperties": true,
+  "properties": {
+    "brand": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "declined": {
+      "type": "boolean"
+    },
+    "id": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "match": {
+      "additionalProperties": true,
+      "properties": {
+        "brand": {
+          "type": "string"
+        },
+        "by": {
+          "type": "string"
+        },
+        "id": {
+          "type": "string"
+        },
+        "model": {
+          "type": "string"
+        }
+      },
+      "required": [],
+      "type": [
+        "null",
+        "object"
+      ]
+    },
+    "model": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "via": {
+      "type": [
+        "string",
+        "null"
+      ]
+    }
+  },
+  "required": [
+    "id",
+    "brand",
+    "model",
+    "via",
+    "match",
+    "declined"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / grinders / items / properties / maintenance / properties / catalog_version
```
Added value: +{
+  "type": "string"
+}
```
addedOutput schema / properties / grinders / items / properties / maintenance / properties / computed_at
```
Added value: +{
+  "type": "string"
+}
```
changedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / basis / type
```
Previous value: -[
-  "string",
-  "null"
-]New value: +[
+  "null",
+  "string"
+]
```
changedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / done / type
```
Previous value: -[
-  "integer",
-  "null"
-]New value: +[
+  "null",
+  "integer"
+]
```
addedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / due_at
```
Added value: +{
+  "type": [
+    "null",
+    "string"
+  ]
+}
```
changedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / every / type
```
Previous value: -[
-  "integer",
-  "null"
-]New value: +[
+  "null",
+  "integer"
+]
```
addedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / every_source
```
Added value: +{
+  "type": [
+    "null",
+    "string"
+  ]
+}
```
addedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / lower_bound
```
Added value: +{
+  "type": "boolean"
+}
```
addedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / muted
```
Added value: +{
+  "type": "boolean"
+}
```
addedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / muted_until
```
Added value: +{
+  "type": "null"
+}
```
addedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / overdue_at
```
Added value: +{
+  "type": [
+    "null",
+    "string"
+  ]
+}
```
changedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / ratio / type
```
Previous value: -[
-  "number",
-  "integer"
-]New value: +[
+  "integer",
+  "number"
+]
```
changedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / remaining / type
```
Previous value: -[
-  "integer",
-  "null"
-]New value: +[
+  "null",
+  "integer"
+]
```

changed

Output schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / required

Previous value: -[
-  "state",
-  "ratio",
-  "basis",
-  "every",
-  "done",
-  "remaining",
-  "last_at"
-]New value: +[
+  "state",
+  "ratio",
+  "basis",
+  "every",
+  "done",
+  "remaining",
+  "lower_bound",
+  "due_at",
+  "overdue_at",
+  "last_at",
+  "every_source",
+  "muted",
+  "muted_until"
+]

addedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / properties / guide_id
```
Added value: +{
+  "type": "null"
+}
```
addedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / properties / task_label
```
Added value: +{
+  "type": "string"
+}
```

changedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / required

Previous value: -[
-  "id",
-  "equipment_kind",
-  "equipment_id",
-  "task",
-  "performed_at",
-  "disturbs_zero",
-  "note",
-  "offset_value",
-  "offset_source",
-  "offset_at",
-  "evidence",
-  "details",
-  "details_version",
-  "created_at",
-  "details_known"
-]New value: +[
+  "id",
+  "equipment_kind",
+  "equipment_id",
+  "task",
+  "performed_at",
+  "disturbs_zero",
+  "note",
+  "offset_value",
+  "offset_source",
+  "offset_at",
+  "evidence",
+  "details",
+  "details_version",
+  "created_at",
+  "guide_id",
+  "details_known",
+  "task_label"
+]

addedOutput schema / properties / grinders / items / properties / maintenance / properties / entries_total
```
Added value: +{
+  "type": "integer"
+}
```
addedOutput schema / properties / grinders / items / properties / maintenance / properties / hardness
```
Added value: +{
+  "type": "null"
+}
```
addedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / class
```
Added value: +{
+  "type": "string"
+}
```

added

Output schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / details_fields / items

Added value: +{
+  "additionalProperties": true,
+  "properties": {
+    "hint": {
+      "type": "string"
+    },
+    "key": {
+      "type": "string"
+    },
+    "label": {
+      "type": "string"
+    },
+    "required": {
+      "type": "boolean"
+    },
+    "type": {
+      "type": "string"
+    }
+  },
+  "required": [
+    "key",
+    "type",
+    "label",
+    "hint",
+    "required"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / disturbs_prompt
```
Added value: +{
+  "type": [
+    "null",
+    "string"
+  ]
+}
```
changedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / every / type
```
Previous value: -[
-  "object",
-  "null"
-]New value: +[
+  "null",
+  "object"
+]
```

added

Output schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / every_source

Added value: +{
+  "additionalProperties": true,
+  "properties": {
+    "days": {
+      "type": "string"
+    },
+    "grams": {
+      "type": "string"
+    },
+    "shots": {
+      "type": "string"
+    }
+  },
+  "required": [],
+  "type": [
+    "null",
+    "object"
+  ]
+}

added

Output schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / guide

Added value: +{
+  "additionalProperties": true,
+  "properties": {
+    "also_covers": {
+      "type": "null"
+    },
+    "basis": {
+      "type": "string"
+    },
+    "duration_minutes": {
+      "type": "null"
+    },
+    "duration_note": {
+      "type": "null"
+    },
+    "id": {
+      "type": "string"
+    },
+    "machine_alert": {
+      "type": "null"
+    },
+    "market": {
+      "type": "null"
+    },
+    "scope": {
+      "type": "string"
+    },
+    "steps": {
+      "type": "integer"
+    },
+    "title": {
+      "type": "string"
+    },
+    "variant": {
+      "type": "string"
+    },
+    "warnings": {
+      "type": "integer"
+    }
+  },
+  "required": [],
+  "type": [
+    "object",
+    "null"
+  ]
+}

added

Output schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / schedule

Added value: +{
+  "additionalProperties": true,
+  "properties": {
+    "enabled": {
+      "type": "boolean"
+    },
+    "every": {
+      "type": "null"
+    },
+    "muted_until": {
+      "type": "null"
+    }
+  },
+  "required": [],
+  "type": [
+    "null",
+    "object"
+  ]
+}

addedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / status
```
Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}
```
addedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / trigger
```
Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}
```

changedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / required

Previous value: -[
-  "value",
-  "kind",
-  "label",
-  "sub",
-  "disturbs_zero",
-  "every",
-  "why",
-  "disturbs_note",
-  "offset_unit",
-  "offset_integral",
-  "scheduled",
-  "opened_by",
-  "details_version",
-  "details_fields"
-]New value: +[
+  "value",
+  "kind",
+  "label",
+  "sub",
+  "disturbs_zero",
+  "every",
+  "why",
+  "disturbs_note",
+  "offset_unit",
+  "offset_integral",
+  "scheduled",
+  "opened_by",
+  "details_version",
+  "details_fields",
+  "class",
+  "status",
+  "trigger",
+  "every_source",
+  "disturbs_prompt",
+  "guide",
+  "schedule"
+]

changedOutput schema / properties / grinders / items / properties / maintenance / required

Previous value: -[
-  "tasks",
-  "due",
-  "calibration",
-  "sensitivity",
-  "entries"
-]New value: +[
+  "tasks",
+  "due",
+  "calibration",
+  "sensitivity",
+  "entries",
+  "entries_total",
+  "catalog_version",
+  "computed_at",
+  "catalog",
+  "hardness"
+]

changedOutput schema / properties / grinders / items / properties / microns_per_step / type
```
Previous value: -[
-  "integer",
-  "null"
-]New value: +[
+  "null",
+  "integer"
+]
```

changedOutput schema / properties / grinders / items / properties / nominal_step / type

Previous value: -[
-  "number",
-  "integer"
-]New value: +[
+  "integer",
+  "number"
+]

changedOutput schema / properties / grinders / items / properties / notes / type

Previous value: -[
-  "string",
-  "null"
-]New value: +[
+  "null",
+  "string"
+]

changedOutput schema / properties / grinders / items / required

Previous value: -[
-  "id",
-  "name",
-  "motor_type",
-  "burr_type",
-  "setting_scheme",
-  "direction_convention",
-  "nominal_step",
-  "components_spec",
-  "min_value",
-  "max_value",
-  "microns_per_step",
-  "notes",
-  "archived",
-  "setting_label",
-  "setting_components",
-  "position_value",
-  "source",
-  "verified_at",
-  "built_in_machine_id",
-  "maintenance"
-]New value: +[
+  "id",
+  "name",
+  "motor_type",
+  "burr_type",
+  "setting_scheme",
+  "direction_convention",
+  "nominal_step",
+  "components_spec",
+  "min_value",
+  "max_value",
+  "microns_per_step",
+  "notes",
+  "archived",
+  "catalog_id",
+  "setting_label",
+  "setting_components",
+  "position_value",
+  "source",
+  "verified_at",
+  "built_in_machine_id",
+  "maintenance"
+]

Changed33 schema fields changedSep 16, 2026
- addedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / disturbs_note
```
Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / epoch_at / type
```
Previous value: -[
-  "null",
-  "string"
-]New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / epoch_id / type
```
Previous value: -[
-  "null",
-  "integer"
-]New value: +[
+  "integer",
+  "null"
+]
```
- addedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / epoch_task
```
Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / offset_at / type
```
Previous value: -[
-  "null",
-  "string"
-]New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / offset_source / type
```
Previous value: -[
-  "null",
-  "string"
-]New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / offset_value / type
```
Previous value: -[
-  "null",
-  "integer"
-]New value: +[
+  "integer",
+  "null"
+]
```
- addedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / untranslatable_recipe_count
```
Added value: +{
+  "type": "integer"
+}
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / required
```
Previous value: -[
-  "stale_recipe_count",
-  "reference_recipe_id",
-  "state",
-  "epoch_id",
-  "epoch_at",
-  "offset_value",
-  "offset_unit",
-  "offset_source",
-  "offset_at",
-  "evidence"
-]New value: +[
+  "stale_recipe_count",
+  "untranslatable_recipe_count",
+  "reference_recipe_id",
+  "state",
+  "epoch_id",
+  "epoch_task",
+  "disturbs_note",
+  "epoch_at",
+  "offset_value",
+  "offset_unit",
+  "offset_source",
+  "offset_at",
+  "evidence"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / basis / type
```
Previous value: -[
-  "null",
-  "string"
-]New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / done / type
```
Previous value: -[
-  "null",
-  "integer"
-]New value: +[
+  "integer",
+  "null"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / every / type
```
Previous value: -[
-  "null",
-  "integer"
-]New value: +[
+  "integer",
+  "null"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / ratio / type
```
Previous value: -"integer"New value: +[
+  "number",
+  "integer"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / remaining / type
```
Previous value: -[
-  "null",
-  "integer"
-]New value: +[
+  "integer",
+  "null"
+]
```
- addedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / properties / details / additionalProperties
```
Added value: +true
```
- addedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / properties / details / properties
```
Added value: +{
+  "from": {
+    "additionalProperties": true,
+    "properties": {
+      "components_spec": {
+        "type": [
+          "null",
+          "string"
+        ]
+      },
+      "nominal_step": {
+        "type": [
+          "number",
+          "integer"
+        ]
+      },
+      "setting_scheme": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "setting_scheme",
+      "nominal_step",
+      "components_spec"
+    ],
+    "type": "object"
+  },
+  "to": {
+    "additionalProperties": true,
+    "properties": {
+      "components_spec": {
+        "type": [
+          "null",
+          "string"
+        ]
+      },
+      "nominal_step": {
+        "type": [
+          "number",
+          "integer"
+        ]
+      },
+      "setting_scheme": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "setting_scheme",
+      "nominal_step",
+      "components_spec"
+    ],
+    "type": "object"
+  }
+}
```
- addedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / properties / details / required
```
Added value: +[]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / properties / details / type
```
Previous value: -"null"New value: +[
+  "object",
+  "null"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / properties / evidence / type
```
Previous value: -[
-  "string",
-  "null"
-]New value: +[
+  "null",
+  "string"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / properties / note / type
```
Previous value: -[
-  "null",
-  "string"
-]New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / properties / offset_at / type
```
Previous value: -[
-  "string",
-  "null"
-]New value: +[
+  "null",
+  "string"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / properties / offset_source / type
```
Previous value: -[
-  "string",
-  "null"
-]New value: +[
+  "null",
+  "string"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / properties / offset_value / type
```
Previous value: -[
-  "integer",
-  "null"
-]New value: +[
+  "null",
+  "integer"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / every / required
```
Previous value: -[
-  "days",
-  "shots",
-  "grams"
-]New value: +[]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / every / type
```
Previous value: -"object"New value: +[
+  "object",
+  "null"
+]
```
- addedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / opened_by
```
Added value: +{
+  "type": [
+    "null",
+    "string"
+  ]
+}
```
- addedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / properties / scheduled
```
Added value: +{
+  "type": "boolean"
+}
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / tasks / items / required
```
Previous value: -[
-  "value",
-  "kind",
-  "label",
-  "sub",
-  "disturbs_zero",
-  "every",
-  "why",
-  "disturbs_note",
-  "offset_unit",
-  "offset_integral",
-  "details_version",
-  "details_fields"
-]New value: +[
+  "value",
+  "kind",
+  "label",
+  "sub",
+  "disturbs_zero",
+  "every",
+  "why",
+  "disturbs_note",
+  "offset_unit",
+  "offset_integral",
+  "scheduled",
+  "opened_by",
+  "details_version",
+  "details_fields"
+]
```
- changedOutput schema / properties / grinders / items / properties / max_value / type
```
Previous value: -[
-  "integer",
-  "null"
-]New value: +[
+  "null",
+  "integer"
+]
```
- changedOutput schema / properties / grinders / items / properties / microns_per_step / type
```
Previous value: -[
-  "null",
-  "integer"
-]New value: +[
+  "integer",
+  "null"
+]
```
- changedOutput schema / properties / grinders / items / properties / min_value / type
```
Previous value: -[
-  "integer",
-  "null"
-]New value: +[
+  "null",
+  "integer"
+]
```
- changedOutput schema / properties / grinders / items / properties / nominal_step / type
```
Previous value: -"integer"New value: +[
+  "number",
+  "integer"
+]
```
- changedOutput schema / properties / grinders / items / properties / notes / type
```
Previous value: -"null"New value: +[
+  "string",
+  "null"
+]
```
Changed27 schema fields changedAug 27, 2026
- changedOutput schema / properties / grinders / items / properties / components_spec / type
```
Previous value: -"string"New value: +[
+  "null",
+  "string"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / epoch_at / type
```
Previous value: -"string"New value: +[
+  "null",
+  "string"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / epoch_id / type
```
Previous value: -"integer"New value: +[
+  "null",
+  "integer"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / evidence / type
```
Previous value: -"null"New value: +[
+  "null",
+  "string"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / offset_at / type
```
Previous value: -"null"New value: +[
+  "null",
+  "string"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / offset_source / type
```
Previous value: -"null"New value: +[
+  "null",
+  "string"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / offset_value / type
```
Previous value: -"null"New value: +[
+  "null",
+  "integer"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / reference_recipe_id / type
```
Previous value: -"integer"New value: +[
+  "null",
+  "integer"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / basis / type
```
Previous value: -"string"New value: +[
+  "null",
+  "string"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / done / type
```
Previous value: -"integer"New value: +[
+  "null",
+  "integer"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / every / type
```
Previous value: -"integer"New value: +[
+  "null",
+  "integer"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / last_at / type
```
Previous value: -"string"New value: +[
+  "null",
+  "string"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / ratio / type
```
Previous value: -"number"New value: +"integer"
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / due / properties / burr_clean / properties / remaining / type
```
Previous value: -"integer"New value: +[
+  "null",
+  "integer"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / properties / evidence / type
```
Previous value: -[
-  "null",
-  "string"
-]New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / properties / note / type
```
Previous value: -[
-  "string",
-  "null"
-]New value: +[
+  "null",
+  "string"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / properties / offset_at / type
```
Previous value: -[
-  "null",
-  "string"
-]New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / properties / offset_source / type
```
Previous value: -[
-  "null",
-  "string"
-]New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / grinders / items / properties / maintenance / properties / entries / items / properties / offset_value / type
```
Previous value: -[
-  "null",
-  "integer"
-]New value: +[
+  "integer",
+  "null"
+]
```
- changedOutput schema / properties / grinders / items / properties / max_value / type
```
Previous value: -"null"New value: +[
+  "integer",
+  "null"
+]
```
- changedOutput schema / properties / grinders / items / properties / microns_per_step / type
```
Previous value: -"integer"New value: +[
+  "null",
+  "integer"
+]
```
- changedOutput schema / properties / grinders / items / properties / min_value / type
```
Previous value: -"null"New value: +[
+  "integer",
+  "null"
+]
```
- changedOutput schema / properties / grinders / items / properties / position_value / type
```
Previous value: -"integer"New value: +[
+  "null",
+  "integer"
+]
```
- changedOutput schema / properties / grinders / items / properties / setting_components / type
```
Previous value: -"string"New value: +[
+  "null",
+  "string"
+]
```
- changedOutput schema / properties / grinders / items / properties / setting_label / type
```
Previous value: -"string"New value: +[
+  "null",
+  "string"
+]
```
- changedOutput schema / properties / grinders / items / properties / source / type
```
Previous value: -"string"New value: +[
+  "null",
+  "string"
+]
```
- changedOutput schema / properties / grinders / items / properties / verified_at / type
```
Previous value: -"string"New value: +[
+  "null",
+  "string"
+]
```

Changed2 schema fields changedAug 18, 2026

addedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / properties / reference_recipe_id
```
Added value: +{
+  "type": "integer"
+}
```

changedOutput schema / properties / grinders / items / properties / maintenance / properties / calibration / required

Previous value: -[
-  "stale_recipe_count",
-  "state",
-  "epoch_id",
-  "epoch_at",
-  "offset_value",
-  "offset_unit",
-  "offset_source",
-  "offset_at",
-  "evidence"
-]New value: +[
+  "stale_recipe_count",
+  "reference_recipe_id",
+  "state",
+  "epoch_id",
+  "epoch_at",
+  "offset_value",
+  "offset_unit",
+  "offset_source",
+  "offset_at",
+  "evidence"
+]

Changed1 schema field changedAug 17, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "additionalProperties": true,
+  "properties": {
+    "grinders": {
+      "items": {
+        "additionalProperties": true,
+        "properties": {
+          "archived": {
+            "type": "integer"
+          },
+          "built_in_machine_id": {
+            "type": "null"
+          },
+          "burr_type": {
+            "type": "string"
+          },
+          "components_spec": {
+            "type": "string"
+          },
+          "direction_convention": {
+            "type": "string"
+          },
+          "id": {
+            "type": "integer"
+          },
+          "maintenance": {
+            "additionalProperties": true,
+            "properties": {
+              "calibration": {
+                "additionalProperties": true,
+                "properties": {
+                  "epoch_at": {
+                    "type": "string"
+                  },
+                  "epoch_id": {
+                    "type": "integer"
+                  },
+                  "evidence": {
+                    "type": "null"
+                  },
+                  "offset_at": {
+                    "type": "null"
+                  },
+                  "offset_source": {
+                    "type": "null"
+                  },
+                  "offset_unit": {
+                    "type": "string"
+                  },
+                  "offset_value": {
+                    "type": "null"
+                  },
+                  "stale_recipe_count": {
+                    "type": "integer"
+                  },
+                  "state": {
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "stale_recipe_count",
+                  "state",
+                  "epoch_id",
+                  "epoch_at",
+                  "offset_value",
+                  "offset_unit",
+                  "offset_source",
+                  "offset_at",
+                  "evidence"
+                ],
+                "type": "object"
+              },
+              "due": {
+                "additionalProperties": true,
+                "properties": {
+                  "burr_clean": {
+                    "additionalProperties": true,
+                    "properties": {
+                      "basis": {
+                        "type": "string"
+                      },
+                      "done": {
+                        "type": "integer"
+                      },
+                      "every": {
+                        "type": "integer"
+                      },
+                      "last_at": {
+                        "type": "string"
+                      },
+                      "ratio": {
+                        "type": "number"
+                      },
+                      "remaining": {
+                        "type": "integer"
+                      },
+                      "state": {
+                        "type": "string"
+                      }
+                    },
+                    "required": [
+                      "state",
+                      "ratio",
+                      "basis",
+                      "every",
+                      "done",
+                      "remaining",
+                      "last_at"
+                    ],
+                    "type": "object"
+                  }
+                },
+                "required": [
+                  "burr_clean"
+                ],
+                "type": "object"
+              },
+              "entries": {
+                "items": {
+                  "additionalProperties": true,
+                  "properties": {
+                    "created_at": {
+                      "type": "string"
+                    },
+                    "details": {
+                      "type": "null"
+                    },
+                    "details_known": {
+                      "type": "boolean"
+                    },
+                    "details_version": {
+                      "type": "integer"
+                    },
+                    "disturbs_zero": {
+                      "type": "integer"
+                    },
+                    "equipment_id": {
+                      "type": "integer"
+                    },
+                    "equipment_kind": {
+                      "type": "string"
+                    },
+                    "evidence": {
+                      "type": [
+                        "null",
+                        "string"
+                      ]
+                    },
+                    "id": {
+                      "type": "integer"
+                    },
+                    "note": {
+                      "type": [
+                        "string",
+                        "null"
+                      ]
+                    },
+                    "offset_at": {
+                      "type": [
+                        "null",
+                        "string"
+                      ]
+                    },
+                    "offset_source": {
+                      "type": [
+                        "null",
+                        "string"
+                      ]
+                    },
+                    "offset_value": {
+                      "type": [
+                        "null",
+                        "integer"
+                      ]
+                    },
+                    "performed_at": {
+                      "type": "string"
+                    },
+                    "task": {
+                      "type": "string"
+                    }
+                  },
+                  "required": [
+                    "id",
+                    "equipment_kind",
+                    "equipment_id",
+                    "task",
+                    "performed_at",
+                    "disturbs_zero",
+                    "note",
+                    "offset_value",
+                    "offset_source",
+                    "offset_at",
+                    "evidence",
+                    "details",
+                    "details_version",
+                    "created_at",
+                    "details_known"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              "sensitivity": {
+                "type": "null"
+              },
+              "tasks": {
+                "items": {
+                  "additionalProperties": true,
+                  "properties": {
+                    "details_fields": {
+                      "type": "array"
+                    },
+                    "details_version": {
+                      "type": "integer"
+                    },
+                    "disturbs_note": {
+                      "type": "string"
+                    },
+                    "disturbs_zero": {
+                      "type": "boolean"
+                    },
+                    "every": {
+                      "additionalProperties": true,
+                      "properties": {
+                        "days": {
+                          "type": "integer"
+                        },
+                        "grams": {
+                          "type": "integer"
+                        },
+                        "shots": {
+                          "type": "integer"
+                        }
+                      },
+                      "required": [
+                        "days",
+                        "shots",
+                        "grams"
+                      ],
+                      "type": "object"
+                    },
+                    "kind": {
+                      "type": "string"
+                    },
+                    "label": {
+                      "type": "string"
+                    },
+                    "offset_integral": {
+                      "type": "boolean"
+                    },
+                    "offset_unit": {
+                      "type": "string"
+                    },
+                    "sub": {
+                      "type": "string"
+                    },
+                    "value": {
+                      "type": "string"
+                    },
+                    "why": {
+                      "type": "string"
+                    }
+                  },
+                  "required": [
+                    "value",
+                    "kind",
+                    "label",
+                    "sub",
+                    "disturbs_zero",
+                    "every",
+                    "why",
+                    "disturbs_note",
+                    "offset_unit",
+                    "offset_integral",
+                    "details_version",
+                    "details_fields"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
+              }
+            },
+            "required": [
+              "tasks",
+              "due",
+              "calibration",
+              "sensitivity",
+              "entries"
+            ],
+            "type": "object"
+          },
+          "max_value": {
+            "type": "null"
+          },
+          "microns_per_step": {
+            "type": "integer"
+          },
+          "min_value": {
+            "type": "null"
+          },
+          "motor_type": {
+            "type": "string"
+          },
+          "name": {
+            "type": "string"
+          },
+          "nominal_step": {
+            "type": "integer"
+          },
+          "notes": {
+            "type": "null"
+          },
+          "position_value": {
+            "type": "integer"
+          },
+          "setting_components": {
+            "type": "string"
+          },
+          "setting_label": {
+            "type": "string"
+          },
+          "setting_scheme": {
+            "type": "string"
+          },
+          "source": {
+            "type": "string"
+          },
+          "verified_at": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "name",
+          "motor_type",
+          "burr_type",
+          "setting_scheme",
+          "direction_convention",
+          "nominal_step",
+          "components_spec",
+          "min_value",
+          "max_value",
+          "microns_per_step",
+          "notes",
+          "archived",
+          "setting_label",
+          "setting_components",
+          "position_value",
+          "source",
+          "verified_at",
+          "built_in_machine_id",
+          "maintenance"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "grinders"
+  ],
+  "type": "object"
+}

First observedJun 16, 2026

TDQS

A3.7/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnly, idempotent, non-destructive and closed-world, so safety is covered. The description adds real behavioral context beyond that: the per-account 1-based id is stable and safe to display, and each row carries a maintenance block with task classes and due state. It stops short of describing ordering, pagination or row count.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Purpose and the id semantics are front-loaded in the first two clauses, which is exactly what an agent needs. The trailing class legend (S/H/Y/A/T/N/U/E) is dense and slightly list-like, but each element is load-bearing for interpreting the returned rows.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With annotations covering the safety profile and an output schema covering return shape, the description only needs to explain the id contract and the maintenance block, and it does both. The absence of any note on ordering, tie-breaking or result volume is a minor remaining gap for a list tool.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100% and both enums are documented in the schema, so the baseline is 3. The description's mention of the maintenance block and the class legend reinforces the `maintenance` parameter's meaning but adds little syntax or default behavior beyond what the schema already states (compact default, full = maker's words).

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb+resource ('List grinders registered for the account') and scopes it with the status filter, and it goes further by describing what each row contains. It does not explicitly differentiate itself from the near-neighbor list_maintenance_due, which is the one meaningful ambiguity among the list_* siblings.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Usage is implied rather than stated: the note that the `id` is 'what other tools expect back' hints that this is the lookup step before update_grinder / set_grinder_position, but there is no explicit when-to-use, when-not, or named alternative. An agent can infer the workflow but is not told it.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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