Plugin · Claude Code · Productivity

Mattbrailsford Speckl

mattbrailsford-speckl is a Claude Code plugin for the Validate phase that structures spec-assisted development with clear specs, tasks, and human–AI collaboration boundaries.

by mattbrailsford · github.com/mattbrailsford/speckl

Run spec-assisted development in Claude Code so humans and the agent share clear specs, tasks, and boundaries before and during implementation.

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Install

Add it to Claude Code

Install the plugin in Claude Code. One command, paste-ready.

Install the plugin
/plugin install mattbrailsford-speckl@mattbrailsford/speckl
Add to ClaudeUse the Agent APISkillselion is itself an MCP server - your agent can fetch this config directly.
Agent API

Built to be called by your agent

Skillselion is itself an MCP server. Your agent can pull this entry and a paste-ready install config straight from the API - no copy-paste.

Retrieve this entry with skillselion.get_details("plugin:mattbrailsford/speckl") and the paste-ready config with skillselion.get_install_config("plugin:mattbrailsford/speckl").

About

What it does

mattbrailsford-speckl is a Claude Code plugin bundle for spec-assisted development: you work with the agent through specifications, bounded tasks, and collaboration commands instead of ad hoc prompts. It targets solo and indie builders who want predictable handoffs—define what “done” means, break work into specks or specs, and keep the assistant aligned with documentation and task management rather than rewriting the whole repo. Use it when you are scoping a feature, maintaining a living spec, or running a lightweight spec-driven loop inside Claude Code. The repo positions itself around clear boundaries, minimal process, and human-in-the-loop control, which matters when agent sessions otherwise drift. Install it when you already ship with Claude Code and need a structured spec layer before build and ship phases, not when you only need a one-off snippet generator.

Highlights

  • Spec-driven and minimal task boundaries for human–AI collaboration
  • Commands and workflow oriented around specs, specks, and maintainable documentation
  • Keeps assistance inside clear collaboration limits instead of unconstrained codegen
  • Bundles 1 plugin focused on specification-driven development with Claude Code
  • Keywords cover task-management, workflow, and human-AI collaboration patterns

Why builders use it

Agent sessions often skip written specs and blur task boundaries, so scope creep and rework pile up before you can trust what was actually agreed.

After you add the plugin, Claude Code can follow a spec-driven workflow with documented specks, bounded tasks, and clearer handoffs into implementation.

At a glance

  • Type - Plugin in Productivity.
  • Adoption - 0 installs, 6 stars, 0 votes.

FAQ

Who is mattbrailsford-speckl for?

It is for developers and solo builders who use Claude Code and want specification-driven collaboration with clear tasks and boundaries.

When should I use mattbrailsford-speckl?

Use it when defining or refining feature specs, breaking work into bounded agent tasks, or maintaining spec-assisted workflows before and during build.

How do I add mattbrailsford-speckl to my agent?

Install the plugin from the mattbrailsford/speckl repository into Claude Code following that repo’s plugin registration steps, then invoke its commands in sessions where you work from specs.

Discussion

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