OpenSpec Apply Change

by Chorus-AIDLC

OpenSpec Apply Change is an AI Engineering skill for Claude Code, published by Chorus-AIDLC in Chorus.

1.1K stars103 forkson Chorus-AIDLC/ChorusAdded 2026/08/20Repository updated 2026/08/20

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agent-harnessai-agentsai-dlcclaude-codeharnesskanbanmulti-agenttask-management

Install in seconds

Install OpenSpec Apply Change

Copy OpenSpec Apply Change into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/Chorus-AIDLC/Chorus/tree/main/.claude/skills/openspec-apply-change ~/.claude/skills/openspec-apply-change

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/Chorus-AIDLC/Chorus.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: .claude/skills/openspec-apply-change/SKILL.md in Chorus-AIDLC/Chorus
Installs to: ~/.claude/skills/openspec-apply-change
Collection: One of 25 skills cataloged from this repository
Category: AI Engineering — 2451 skills

What OpenSpec Apply Change does

OpenSpec Apply Change implements tasks from an OpenSpec change, guiding an agent through selecting a change, reading context files, and completing tasks one by one. Use when starting, continuing, or working through implementation tasks.

OpenSpec Apply Change is cataloged under AI Engineering on DirSkills. OpenSpec Apply Change comes from a repository tagged agent-harness, ai-agents, ai-dlc, claude-code and harness.

Documentation

README

Excerpt

Implement tasks from an OpenSpec change.

Input: Optionally specify a change name. If omitted, check if it can be inferred from conversation context. If vague or ambiguous you MUST prompt for available changes.

Steps

Select the change

If a name is provided, use it. Otherwise:
- Infer from conversation context if the user mentioned a change
- Auto-select if only one active change exists
- If ambiguous, run openspec list --json to get available changes and use the AskUserQuestion tool to let the user select
Always announce: "Using change: " and how to override (e.g., /opsx:apply <other>).

This is the opening of the README. Read the full README on GitHub.

Frequently asked about OpenSpec Apply Change

What else does Chorus-AIDLC publish alongside OpenSpec Apply Change?
OpenSpec Apply Change is one of 25 skills that DirSkills catalogs from Chorus-AIDLC/Chorus, the repository it ships in. Its siblings there include Brainstorm, Brainstorm Chorus and Chorus. Each one is a separate skill with its own page in this directory, installs the same way OpenSpec Apply Change does, and is maintained by Chorus-AIDLC in that same repository. The rest of the collection is listed on the Chorus-AIDLC/Chorus page.
How does OpenSpec Apply Change compare to other AI Engineering skills?
OpenSpec Apply Change ranks #1233 by stars among the 2451 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of OpenSpec Apply Change against them. Open each page to compare what they document and how they install.