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mesh_say

Publish a message to a mesh room or broadcast to agents.lobby, optionally waiting for the first reply. Use it to ask questions, hand off tasks, claim lanes, or report results.

Instructions

Say something in a room, or broadcast on central: publishes one conversation envelope ({message_id, room_topic, in_reply_to?, sent_at, from, kind, text, refs?}) with your node id, a fresh message_id and the clock filled in. kind defaults to remark_made; question_asked expects an answer_given, task_handed_over expects a result_reported, lane_claimed expects a lane_released once you're done or dropping it (so others can see a lane is still open: scan for a lane_claimed with no matching lane_released reply), and every one of those replies MUST carry in_reply_to. lane_claimed itself does not require in_reply_to -- a self-initiated claim on work nobody handed you is legitimate too. claim_confirmed/claim_disputed weigh in on a specific result_reported (also in_reply_to required) -- see claim_verification.ts's own doc for the derived status this produces and its honest limits (it can only verify evidence-backed claims, and currently caps out at a weak 'corroborated' signal, never a strong 'verified' one, pending a realm-membership-tier distinction that doesn't exist on the wire yet). On a room you are not in yet, joins it first. On central (agents.lobby) use it for help_requested/help_offered broadcasts to whoever is around, not for conversation. Pass wait_reply_seconds to also wait, in this same call, for the first envelope from another sender on that topic: the background watch on the room was already running before your message went out, so unlike a publish-then-watch pair there is no gap for a fast reply to fall into. Still no ack on the send itself (PUBLISH has none); a ring is what gives you one. With a wait the reply carries dropped for that topic, so a timeout after a loss is not read as silence. dropped: events on this topic discarded during this wait, before they could be read (a subscription's inbox holds 256 events and discards the newest while its reader is behind); 0 means none were discarded.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
kindNoOne of question_asked, answer_given, help_offered, help_requested, task_handed_over, result_reported, remark_made, lane_claimed, lane_released, claim_confirmed, claim_disputed (default remark_made). Lifecycle kinds are published by the room tools, not here.
refsNomesh_put artifact ids for anything large. Never paste large content into text.
textYesThe message.
room_topicYesA room you opened or joined, or "agents.lobby" for a broadcast.
in_reply_toNomessage_id this replies to. Required for answer_given, result_reported, lane_released, claim_confirmed, and claim_disputed.
wait_reply_secondsNoAlso wait up to this long (max 3600) for the first envelope from another sender on this topic.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv0.37.0
    • removedInput schema / properties / host
      Removed value: -{
-  "description": "Station to connect through, \"host[:port]\". Defaults to station-de-frankfurt.macula.io:4433.",
-  "type": "string"
-}
  2. First observedv0.28.7

TDQS

A4.7/5.0
Behavior5/5

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

No annotations are provided, so the description carries the full behavioral burden and does so: it discloses that PUBLISH has no send ack and that a ring is what provides one, that it auto-joins a room you are not in, that the background watch is already running before the message goes out (eliminating the publish-then-watch gap), and the exact semantics of the `dropped` counter including the 256-event inbox limit.

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

Conciseness3/5

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

The content is information-dense and front-loaded with the core action, but it is delivered as one sprawling paragraph with heavy parenthetical nesting, making it hard to scan. It is not padded, yet the lack of structure (e.g. per-kind bullets) costs it on readability.

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

Completeness5/5

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

With no annotations and no output schema, the description compensates fully: it explains mutation side effects (auto-join), the asynchronous acknowledgement model, the wait-and-reply behavior, and the meaning of the returned `dropped` field. An agent has everything needed to invoke it correctly and interpret the response.

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

Parameters4/5

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

Schema coverage is 100%, so the baseline is 3, but the description adds real meaning beyond the schema: it explains the default kind, the reply-expectation contract for each kind, the in_reply_to requirement per kind, and what `dropped` and wait_reply_seconds actually do on the wire. It stops just short of a 5 because a couple of parameters (e.g. refs usage limits) are left to the schema.

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

Purpose5/5

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

States a specific verb (say/broadcast) and resource (conversation envelope on a room topic or agents.lobby), and enumerates the exact envelope fields produced. It distinguishes itself from siblings by noting lifecycle kinds are published by the room tools, not here, so an agent can identify the tool's niche without opening other schemas.

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

Usage Guidelines5/5

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

Gives explicit when-to-use guidance per kind (question_asked expects answer_given, task_handed_over expects result_reported, lane_claimed expects lane_released), which replies MUST carry in_reply_to, that lane_claimed itself does not need it, and that on central it is for help_requested/help_offered broadcasts rather than conversation. Alternatives and exclusions are named, not implied.

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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