MCP tools

MCP tools overview

The tools and prompts an AI agent gets when connected to ZeroWidth, and what each one is for.

A connected AI tool gets the MCP tools below, and uses them when the person is checking before a choice, recording a choice, or looking back at results.

Tools

Tool	What the tool does	Changes the record
`recall`	Checks for earlier decisions like the one being weighed, and how they went	No
`context`	Gets what the team knows about a task in one call: earlier decisions and how they went, open proposals, the things involved with who owns them and what they connect to, other decisions that touched them, and open questions	No
`ask`	Answers a question from past decisions, citing the decisions the answer rests on	No
`about`	Says what the record knows about a product, system, feature, step or person	No
`report_decision`	Records a decision just made in the conversation	Yes
`propose`	Saves an idea or option that nobody has decided yet	Yes
`drop_proposal`	Sets an open proposal aside, with the reason	Yes
`recent_decisions`	Lists the newest decisions, newest first, for everyone or only the person's own	No
`best_and_worst`	Ranks decisions by how far their numbers moved over a period	No
`open_questions`	Lists the open questions put to you	No
`answer_question`	Answers an open question with yes, no or not sure	Yes
`dismiss_question`	Puts away an open question that doesn't matter	Yes
`wiki_get`	Reads a thing's wiki page, with past versions	No
`wiki_update`	Replaces a thing's wiki page	Yes
`add_facts`	Adds facts about how the work runs, such as who owns a step, or ends and replaces one	Yes
`retract_fact`	Takes back a fact, by its id	Yes
`merge_things`	Says two things on the map are one	Yes
`separate_things`	Says two things on the map are not one	Yes
`rename_thing`	Adds a name a thing goes by	Yes
`remove_thing`	Takes a name that is not a thing off the map	Yes
`submit_source`	Hands over a file or text to be read later; an admin starts the reading	Yes
`define_metric`	Defines a number the team measures, like weekly signups, and says which way is good	Yes
`record_readings`	Records numbers for metrics already defined	Yes

On hosted ZeroWidth, define_metric and record_readings are offered to admins only, and merge_things, separate_things, rename_thing and remove_thing work for admins only, as does submit_source. A person takes back their own facts with retract_fact, and an admin can take back any. Self-hosted, record_readings is offered when ZeroWidth has a place to keep numbers.

Prompts

ZeroWidth also offers three prompts, which many AI apps show as commands a person can pick:

Record a decision. Records a choice the team just made, with why, the goal, the number that should move and when to judge the decision.
Check before deciding. Looks for earlier decisions on a question before choosing.
My open questions. Goes through the questions put to you, one at a time.

First things to try

Once a tool is connected, try one of these in a chat:

Have we decided anything about pricing before? Check ZeroWidth.

We've decided to ship the beta to ten design partners first, so we learn before we scale. Report that to ZeroWidth.