A tiny, focused sub-agent that turns a set of research findings into a single coherent final report. Reads only what it is given — does not do independent research, does not access the web, does not invent facts. It exists as a focused tool for orchestrating agents to delegate the writing phase to.

Why a separate agent?

This is an example of the agent-as-tool pattern in graph agents. The deep-research graph agent's synthesize node is an agent node that spawns this one (see assets/agents/deep-research/graph.yaml). Separating the role has two practical benefits:

The orchestrating agent can use a cheap model (or a high-temperature exploratory one) for the research phase, while letting the writing phase use a different (typically lower-temperature, possibly larger) model dedicated to coherent prose.
The writing prompt is owned by this agent's config.yaml rather than buried inside another agent's graph. You can polish it independently without touching the research flow.

Standalone use

You can also use this agent directly if you have a set of findings you want polished:

coyote -a report-writer "Topic: X. Findings: <paste findings here>"

It will produce a single Markdown report following the rules in its system prompt: executive summary at the top, grouped sections by related sub-questions, every inline citation preserved verbatim, and a final "Open questions / disagreements" section.

What it will NOT do

Search the web, fetch URLs, query an MCP server, or use any tool. It has no tools configured.
Invent facts beyond what is in the findings you give it.
Strip or rewrite citations.

These constraints are the point of the agent existing: a writer that the orchestrator can trust to stay in its lane.