The planning layer for Copilot teams.
The Hamster CLI syncs Briefs, Plans, and team decisions into your repo so Copilot can work from your team's requirements alongside the code.
Free for 10 briefs a month.
Bring the requirements into the code Copilot reads.
Suggestions without requirements context
Copilot autocompletes based on surrounding code. It does not know the product requirements, the team constraints, or the acceptance criteria for the feature you are building.
Agent mode needs structured input
Copilot Agent can handle multi-file tasks, but it needs well-scoped instructions. A vague issue title produces vague output. The quality of what goes in determines what comes out.
No shared context across team sessions
Separate prompts leave developers without a shared record of the feature’s requirements, decisions, and remaining work.
Hamster gives Copilot structured context.
Hamster drafts a Brief from your intent and generates a Plan with scoped Tasks. The CLI syncs that work into .hamster/ so Copilot can read the requirements and acceptance criteria before building.
Requirements in the repo
The Hamster CLI syncs briefs, tasks, and plans into .hamster/ as markdown. Copilot can reference them for suggestions that match your actual product requirements.
Scoped tasks for Agent mode
Hamster decomposes features into well-bounded tasks with acceptance criteria. Copilot Agent executes against clear specs instead of vague issue titles.
Always-on context via the CLI
The CLI keeps the Briefs, Tasks, and Plans in .hamster/ current as your team makes changes, so Copilot can pick up the latest requirements without manual copying.
How teams use Hamster with Copilot
Feature implementation
Before
Requirements supplied only in a prompt can leave the scope unclear, requiring more explanation and corrections as the agent builds.
After
The agent reads the Brief and task details from .hamster/, so its work can be reviewed against the requirements your team agreed on.
Agent mode tasks
Before
Requirements supplied only in a prompt can leave the scope unclear, requiring more explanation and corrections as the agent builds.
After
The agent reads the Brief and task details from .hamster/, so its work can be reviewed against the requirements your team agreed on.
Team coordination
Before
Developers working in separate coding sessions can duplicate work when they have no shared requirements or task boundaries.
After
Hamster gives the team a shared Brief and scoped Tasks, so each developer can choose work with clear acceptance criteria.
Bring your next Brief into Copilot.
Your coding agent can work from the shared Brief and scoped Tasks, giving you clear acceptance criteria to review its changes against.
The Free plan includes 10 Briefs a month for you and your team.
Related pages
Hamster CLI
Install the CLI, sync briefs and plans into your repo, and give your coding agent full project context.
Hamster for Cursor
Plan outside the editor, build inside it with scoped Cursor sessions.
Hamster for Claude Code
Give Claude Code structured context for every agentic coding session.
Hamster for Developers
Implementation-ready task specs for developers who ship with AI agents.