Milestone (Grade A) logo

Milestone (Grade A)Security-tested development skill for Claude AI. Grade A. Manage milestones: new, complete, audit, gaps.

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Daniel NikulshynReviewed by Daniel Nikulshyn·Updated July 2026

Overview

Milestone is a security-tested development skill for Claude AI that manages milestones, including creating new ones, completing existing ones, auditing, and identifying gaps. It handles the full milestone lifecycle and runs inline for most subcommands, but spawns agents for audit tasks. The skill ensures that milestones, representing significant project checkpoints, are properly managed to deliver cohesive chunks of functionality. It delegates integration checks and minimizes reading of audit and verification outputs. The skill also implements multi-session sync to prevent concurrent modifications.

Key features

  • Create new milestones
  • Complete existing milestones
  • Audit milestones
  • Identify gaps in milestones
  • Multi-session sync
  • Delegates integration checks

Pricing

Model
Free
Category
Skills
Rating
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Use cases

Project Checkpoint Management

Use Milestone to manage significant project checkpoints, ensuring that each milestone is properly created, completed, audited, and analyzed for gaps.

Milestone Audit

Utilize the audit subcommand to verify milestone completion and identify potential issues before moving on to the next project phase.

Gap Analysis

Run the gaps subcommand to create phases that close audit gaps, ensuring that all necessary tasks are completed.

Pros & Cons

Pros

  • Handles full milestone lifecycle
  • Ensures proper management of project checkpoints
  • Delegates integration checks for efficiency
  • Implements multi-session sync for concurrency control

Cons

  • Requires careful argument parsing
  • May spawn agents for audit tasks, adding complexity
  • Needs to acquire and release claims for multi-session sync

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Q&A

What is multi-session sync in Milestone?

Multi-session sync is a feature that prevents concurrent modifications by acquiring and releasing claims for project sessions, ensuring that only one session can modify the project at a time.

Asked by Salome Beridze · Mar 18, 2026

How does Milestone handle integration checks?

Milestone delegates integration checks to the integration checker subagent, minimizing the need for manual checks and reducing complexity.

Asked by Carlos Mendoza · Dec 31, 2025

Can Milestone handle the full milestone lifecycle?

Yes, Milestone handles the full milestone lifecycle, including creation, completion, auditing, and gap analysis.

Asked by Björn Karlsson · Dec 22, 2025

What is Milestone used for?

Milestone is a security-tested development skill for Claude AI that manages milestones, including creating new ones, completing existing ones, auditing, and identifying gaps.

Asked by Malik Rasheed · Dec 20, 2025

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