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Openspec Sync Specs

pbh-btn/peerbanhelper

This syncs delta specs from an openspec change back into your main specs without archiving the change. It reads the delta files (which mark requirements as ADDED, MODIFIED, REMOVED, or RENAMED) and intelligently merges them into your main spec files. The key bit is that it does smart merging instead of blind replacement, so you can add a single scenario to an existing requirement without copying everything else over. It prompts you to pick which change to sync if you don't specify one, then walks through each capability's delta and applies the changes. Useful when you want to keep a change branch active but pull its spec updates into main as you go.

skills.sh installs
153
GitHub stars
6.4K
last updated
Aug 21, 2026
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Install

$ npx -y skills add pbh-btn/peerbanhelper --skill openspec-sync-specs --agent claude-code

Installs into .claude/skills of the current project.

Files

Sync delta specs from a change to main specs.

This is an agent-driven operation - you will read delta specs and directly edit main specs to apply the changes. This allows intelligent merging (e.g., adding a scenario without copying the entire requirement).

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

  1. If no change name provided, prompt for selection

    Run openspec list --json to get available changes. Use the AskUserQuestion tool to let the user select.

    Show changes that have delta specs (under specs/ directory).

    IMPORTANT: Do NOT guess or auto-select a change. Always let the user choose.

  2. Find delta specs

    Look for delta spec files in openspec/changes/<name>/specs/*/spec.md.

    Each delta spec file contains sections like:

    • ## ADDED Requirements - New requirements to add
    • ## MODIFIED Requirements - Changes to existing requirements
    • ## REMOVED Requirements - Requirements to remove
    • ## RENAMED Requirements - Requirements to rename (FROM:/TO: format)
SKILL.md on GitHub

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Details

Repository
github.com/pbh-btn/peerbanhelper
First seen
Jun 3, 2026

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