What is openspec-new-change?

A workflow for starting a new OpenSpec change, where a feature, fix, or modification is described through structured project documents. OpenSpec is a tool for organizing software changes before implementation.

Use it when beginning a new feature, bug fix, or code modification with OpenSpec. It creates the change scaffold after the request and any requested workflow schema are understood.

It gives an unclear request a concrete change name and a repeatable set of planning steps. It also ensures the requested workflow schema is selected before the change is created.

openspec-new-change — Skill for Claude Code and Cursor by agiledon: A workflow for starting a new OpenSpec change, where…

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add skills/agiledon/openmole/openspec-new-change

Any agent

npx skills add agiledon/openmole --skill openspec-new-change

Clone the repo

git clone --depth 1 https://github.com/agiledon/openmole

Made for: Claude Code, Cursor.

Or install openmole, the plugin that ships this one along with the rest of its 16 skills, 16 commands.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/agiledon/openmole/openspec-new-change.svg)](https://agentmods.dev/skills/agiledon/openmole/openspec-new-change)

Your own site

<a href="https://agentmods.dev/skills/agiledon/openmole/openspec-new-change"><img src="https://agentmods.dev/badge/skills/agiledon/openmole/openspec-new-change.svg" alt="Measured on agentmods" height="20"></a>

Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 658 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

Origin 80% copy Near-identical to another mod in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00040	$0.00658
Opus 5	$0.00020	$0.00329
Sonnet 5	$0.00008	$0.00132
Haiku 4.5	$0.00004	$0.00066

Measured 6d ago against content hash 2e5a0c2c5ca6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

openspec-new-change scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

80% identical to openspec-new-change — 12 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.cursor/skills/openspec-new-change/SKILL.md · 75 lines

What it actually says

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

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.
Determine the workflow schema

Use the default schema (omit --schema) unless the user explicitly requests a different workflow.

Use a different schema only if the user mentions:
- A specific schema name → use --schema <name>
- "show workflows" or "what workflows" → run openspec schemas --json and let them choose
Otherwise: Omit --schema to use the default.
Create the change directory
```
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.
Show the artifact status
```
openspec status --change "<name>"
```
This shows which artifacts need to be created and which are ready (dependencies satisfied).
Get instructions for the first artifact 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".
```
openspec instructions <first-artifact-id> --change "<name>"
```
This outputs the template and context for creating the first artifact.
STOP and wait for user direction

Output

After completing the steps, summarize:

Change name and location
Schema/workflow being used and its artifact sequence
Current status (0/N artifacts complete)
The template for the first artifact
Prompt: "Ready to create the first artifact? Just describe what this change is about and I'll draft it, or ask me to continue."

Guardrails

Do NOT create any artifacts yet - just show the instructions
Do NOT advance beyond showing the first artifact template
If the name is invalid (not kebab-case), ask for a valid name
If a change with that name already exists, suggest continuing that change instead
Pass --schema if using a non-default workflow

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

6d ago First seen · 75 lines · 40 tokens per session scan A 2e5a0c2c5ca6

Subscribe to this mod's changes

openspec-new-change is a skill published in the GitHub repository agiledon/openmole (23 stars, last pushed 1mo ago), licensed MIT. It adds 40 tokens to every session and 658 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 80% identical to openspec-new-change, differing in 12 lines, and is treated as a copy.

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