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

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

Name	Required	Description	Default
`grinders`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 22, 2026

changedInput schema / properties / maintenance / description

Previous value: -"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."New value: +"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)."

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

A3.5/5.0

Behavior3/5

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

Annotations already declare readOnlyHint, idempotentHint, and non-destructive, so safety is covered. The description adds genuinely useful non-obvious behavior: the `id` is a per-account ordinal counting from 1, safe to display, and the handle other tools expect back. It explains the row contents, but not pagination or ordering.

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 is front-loaded in the first clause, followed by the id contract and then the row shape. The class-code list (S/H/Y/A/T/N/U/E) is dense but each token is load-bearing for interpreting output, so it earns its space. Still one long sentence in the middle section.

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?

An output schema exists, so return values don't need full explanation, yet the description still clarifies the non-obvious id semantics and class-code vocabulary, which are the main interpretation hazards. It omits ordering and pagination, which is the remaining gap.

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%, so both `status` and `maintenance` are fully documented in the schema. The description restates 'status filter' and the maintenance block contents but adds little parameter-level detail beyond the schema, which is the baseline-3 case.

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 and resource with scope: 'List grinders registered for the account, with status filter.' An agent knows exactly what it returns. It does not, however, distinguish itself from siblings like list_maintenance_due or get_maintenance_guides, which also surface maintenance information.

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 only implied by 'with status filter' and by the maintenance compaction choice. There is no explicit when-to-use or when-to-prefer-a-sibling guidance, no mention of list_maintenance_due for due-only queries, and no exclusions.

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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