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Get Started Free →Start a new OpenSpec change using the experimental artifact workflow. Use when the user wants to create a new feature, fix, or modification with a structured step-by-step approach.
| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-12 | ✗→✓ | ▲ Improved | 75% | 0% |
| case-02 | ✓→✗ | ▼ Worse | -62% | 0% |
| case-05 | ✓→✗ | ▼ Worse | -50% | 0% |
| case-07 | ✓→✗ | ▼ Worse | 0% | 0% |
| case-10 | ✓→✗ | ▼ Worse | 16% | 0% |
Start a new change using the experimental artifact-driven approach.
Input: The user's request should include a change name (kebab-case) OR a description of what they want to build.
Steps
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.
Use the default schema (omit --schema) unless the user explicitly requests a different workflow.
Use a different schema only if the user mentions:
--schema <name>openspec schemas --json and let them chooseOtherwise: Omit --schema to use the default.
bash openspec new change "<name>" Add --schema <name> only if the user requested a specific workflow. This creates a scaffolded change at openspec/changes/<name>/ with the selected schema.
bash openspec status --change "<name>" This shows which artifacts need to be created and which are ready (dependencies satisfied).
The first artifact depends on the schema (e.g., proposal for spec-driven). Check the status output to find the first artifact with status "ready". bash openspec instructions <first-artifact-id> --change "<name>" This outputs the template and context for creating the first artifact.
Output
After completing the steps, summarize:
Guardrails
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