.agent/skills/openspec-ff-change/SKILL.md
Fast-forward through OpenSpec artifact creation. Use when the user wants to quickly create all artifacts needed for implementation without stepping through each one individually.
npx skillsauth add ada20204/antigravity-sync-mcp openspec-ff-changeInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
4 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
Fast-forward through artifact creation - generate everything needed to start implementation in one go.
Input: The user's request should include a change name (kebab-case) OR a description of what they want to build.
Steps
If no clear input provided, ask what they want to build
Use the AskUserQuestion tool (open-ended, no preset options) to ask:
"What change do you want to work on? Describe what you want to build or fix."
From their description, derive a kebab-case name (e.g., "add user authentication" → add-user-auth).
IMPORTANT: Do NOT proceed without understanding what the user wants to build.
Create the change directory
openspec new change "<name>"
This creates a scaffolded change at openspec/changes/<name>/.
Get the artifact build order
openspec status --change "<name>" --json
Parse the JSON to get:
applyRequires: array of artifact IDs needed before implementation (e.g., ["tasks"])artifacts: list of all artifacts with their status and dependenciesCreate artifacts in sequence until apply-ready
Use the TodoWrite tool to track progress through the artifacts.
Loop through artifacts in dependency order (artifacts with no pending dependencies first):
a. For each artifact that is ready (dependencies satisfied):
openspec instructions <artifact-id> --change "<name>" --json
context: Project background (constraints for you - do NOT include in output)rules: Artifact-specific rules (constraints for you - do NOT include in output)template: The structure to use for your output fileinstruction: Schema-specific guidance for this artifact typeoutputPath: Where to write the artifactdependencies: Completed artifacts to read for contexttemplate as the structurecontext and rules as constraints - but do NOT copy them into the fileb. Continue until all applyRequires artifacts are complete
openspec status --change "<name>" --jsonapplyRequires has status: "done" in the artifacts arrayapplyRequires artifacts are donec. If an artifact requires user input (unclear context):
Show final status
openspec status --change "<name>"
Output
After completing all artifacts, summarize:
/opsx:apply or ask me to implement to start working on the tasks."Artifact Creation Guidelines
instruction field from openspec instructions for each artifact typetemplate as the structure for your output file - fill in its sectionscontext and rules are constraints for YOU, not content for the file
<context>, <rules>, <project_context> blocks into the artifactGuardrails
apply.requires)tools
Use when Antigravity MCP is available locally and you want to query workspaces, check quota, run lightweight Antigravity asks, or generate images through the local antigravity-mcp-server.
testing
Use when creating new skills, editing existing skills, or verifying skills work before deployment
development
Use when you have a spec or requirements for a multi-step task, before touching code
tools
Comprehensive guide for creating VS Code extensions from scratch, including project scaffolding, API usage, activation events, and packaging. Use when user wants to create/build/generate/develop a VS Code extension or plugin, asks about VS Code extension development, needs help with VS Code Extension API, discusses extension architecture, wants to add commands/webviews/language support, or mentions scaffolding a VS Code project.