Plugin

Milestone by Ouroboros Apps

Early access

Approved freelance milestones and acceptance criteria. For freelancers and independent consultants.

A milestone is complete only when the criteria you saved were met. The assistant doesn't get to redefine done.

Server URL

Connect

• Claude: Customize, then Connectors, then Add custom connector. Paste the URL and sign in.
• Cursor: add this to ~/.cursor/mcp.json or .cursor/mcp.json, then restart and sign in.
• Grok: grok.com/connectors, New Connector, Custom, then the URL.

ChatGPT's directory doesn't list this yet. Use developer mode until it does. That's the early-access route.

{
  "mcpServers": {
    "milestone": {
      "url": "https://milestone-continuity2.vercel.app/mcp"
    }
  }
}

Tools

These names and descriptions are what the server returns from tools/list before you sign in.

• list_milestone_sets List the signed-in freelancer's milestone sets. Use a returned id with read_milestone_set. Do not guess a set.
• open_milestone_set Open a draft milestone set for one client project. Draft definitions are not an approved commitment until approve_milestones.
• read_milestone_set Read the milestone set before answering. Quote only this record. mayTellClient and clientWording are what the assistant may tell the client. Do not say a milestone is complete unless complete is true. Do not say the next payment is released
• define_milestone Add one milestone to a draft set: a title and the definition of that milestone. After milestones are approved, a new milestone is refused until accept_milestone_change applies an add_milestone suggestion.
• save_acceptance_criterion Save one acceptance criterion, which is what done means for that milestone. After milestones are approved, a new criterion is refused until an accepted add_criterion suggestion. This does not mark the milestone complete.
• save_deliverable Save one deliverable that belongs to a milestone. After milestones are approved, an extra deliverable is refused until an accepted add_deliverable suggestion. Do not invent a deliverable that was not saved.
• save_work_item Save one piece of work under a milestone so it can later be marked done. After milestones are approved, new work is refused until an accepted add_work_item suggestion. Unsaved work cannot be marked done.
• record_criterion_met Record that one saved acceptance criterion was met. The criterion must already be saved. This does not by itself tell the client the milestone is complete or that the next payment is released.
• declare_milestone_complete State that a milestone is complete. Refuses unless the milestones are approved and every saved acceptance criterion on that milestone was met. Do not tell the client a milestone is complete when this tool refuses.
• declare_next_payment_released State that the next payment for a milestone is released. Refuses unless the milestones are approved, every saved acceptance criterion on that milestone was met, and the milestone is complete. Do not tell the client the next payment is relea
• mark_work_done Mark one saved work item done. Refuses when the work item was not saved. Do not mark unsaved work done.
• write_client_wording Record what the assistant may tell the client about milestones, what done means, completion, and payment release. After approval, different wording is refused until an accepted revise_client_wording suggestion. The assistant must not go bey
• approve_milestones Approve the draft milestone definitions and acceptance criteria. Pass confirmed true only after the freelancer explicitly approves them. A draft is not a commitment.
• suggest_milestone_change Record a suggested change. This does not change the milestones. kind add_milestone requires title and definition. kind add_criterion requires milestoneId and statement. kind add_deliverable requires milestoneId, title, and detail. kind add_
• accept_milestone_change Apply one suggested milestone change after the freelancer explicitly approves that change. Pass confirmed true only then. This is the path for an extra deliverable, a new acceptance criterion, or new saved work after approval. Calling it is