"Change the garlic garden bed to instead be cucumbers this year" was nearly executable already — describe_garden resolves "the garlic bed" to an object id because it reports the NAMES of what's planted, clear_object empties it, and fill_region replants it. Step three had no way to get its plantId. The toolbox had no plant tool at all, so the agent could see the string "Garlic" come out of describe_garden and had no route from "cucumbers" to an id. One missing tool blocked the whole flagship interaction. find_plant matches the actor's visible catalog and deliberately returns SEVERAL candidates rather than one guess. "garlic" against a catalog holding both "Garlic" and "German Red Garlic" is genuinely ambiguous, and a caller holding the surrounding conversation is far better placed to disambiguate than a fuzzy-match heuristic here. Results are ranked exact, then prefix, then substring, then category, and ordered stably — a tool whose results reshuffle between calls is one a model can't reason about across turns. Each result also reports how much seed is left of that plant across the actor's lots, so the agent can say "you only have enough for half that bed" instead of confidently planting seed that doesn't exist. Omitted rather than zeroed when there are no lots, and dropped when lots disagree about the unit, since summing seeds and grams would be a lie. create_plant lets a variety be named in conversation without leaving the chat. It's user-scoped, not garden-scoped — someone with no editable garden can still name a plant — which the tests assert deliberately rather than assume. add_journal_entry arrived with #52: "note that the west bed has mildew" is squarely the kind of thing you say out loud while walking around. Also reviewed the descriptions on the existing seven tools, since they are the model's only documentation. fill_region's region vocabulary now says north is the top of the garden, gives a worked example of the replant sequence, and notes that filling twice is safe. The demo sequence is now a test: describe_garden → find_plant("cucumber") → clear_object → fill_region, ending with a bed of cucumbers and no active garlic. go.mod is deliberately untouched — majordomo stays out of the module until #56 drops the build tag, so the default build is unaffected. Closes #55 Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]> Claude-Session: https://claude.ai/code/session_01H3zbym8Doka2d7D48maSgZ