Open source alternatives to implement-spec

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implement-spec

Implement the result of /to-spec and /to-tickets in code

implement-spec is an agent skill from Matt Pocock's skills collection, listed on skills.sh. It implements a whole spec and its tickets on one integration branch, treating the tickets as a graph of blocking relationships and handing ready tickets to implementer subagents. A skill is a SKILL.md file of instructions (sometimes with scripts and reference notes) that an AI agent loads only when a task calls for it, so the agent knows the steps to follow and what to avoid. It is free and open source.