openspec-propose

openspec-propose is a skill for Claude Code, Codex from chhuax/praxis-devos. It costs 43 tokens per session (1,188 once invoked), scanned A, original, Apache-2.0.

A guide for turning a rough software change request into OpenSpec proposal documents, such as a proposal, design description, specification, and task list. OpenSpec is a workflow for documenting changes before implementation.

In plain words
What is it for?
Use it to create or complete an OpenSpec change, refine requirements, document the design, and break the work into executable tasks.
Why use it?
It gives an unclear or unsettled request a defined scope and implementation-ready documentation before code is written.

Skill for Claude CodeCodex

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/chhuax/praxis-devos/openspec-propose
Any agent
npx skills add chhuax/praxis-devos --skill openspec-propose
Clone the repo
git clone --depth 1 https://github.com/chhuax/praxis-devos

Made for: Claude Code, Codex.

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.

agentmods badge for openspec-propose

README.md
[![agentmods](https://agentmods.dev/badge/skills/chhuax/praxis-devos/openspec-propose.svg)](https://agentmods.dev/skills/chhuax/praxis-devos/openspec-propose)
Your own site
<a href="https://agentmods.dev/skills/chhuax/praxis-devos/openspec-propose"><img src="https://agentmods.dev/badge/skills/chhuax/praxis-devos/openspec-propose.svg" alt="Measured on agentmods" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,188 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found 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.

ModelPer sessionOnce invoked
Fable 5 $0.00043 $0.01188
Opus 5 $0.00022 $0.00594
Sonnet 5 $0.00009 $0.00238
Haiku 4.5 $0.00004 $0.00119

Measured 4d ago against content hash 921662c75ba9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

openspec-propose 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 4d 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.

assets/openspec/workflows/openspec-propose/SKILL.md · 145 lines

How it starts

The opening of the file, as written. The whole thing — 145 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Create a new OpenSpec change and push it toward apply-ready whenever possible.

Core Positioning

  • OpenSpec owns the change, schema, artifact dependencies, status, instructions, and readiness
  • Superpowers owns requirement convergence and task breakdown
  • Final outputs must remain only inside the current change directory

Capability Routing

  • If the input is still vague, the boundaries are unstable, or multiple reasonable approaches exist, use superpowers:brainstorming first
  • When generating tasks.md, default to superpowers:writing-plans
  • In the propose stage, writing-plans is only for the entire tasks.md

Input

The user should provide at least one of the following:

  • A change name
  • A description of what they want to build or fix

If they only provide a description, derive a kebab-case name from it.

Common trigger phrases include:

  • "Write an OpenSpec proposal / change proposal"
  • "Help me fill in the spec / design doc / tasks"
  • "Break this change request into executable tasks"
  • "Complete the OpenSpec artifacts so implementation can begin"

Execution Steps

1. Determine the change name

  • If the name and goal are already clear, use them directly
  • Otherwise, first decide whether superpowers:brainstorming is needed
  • After convergence, determine the kebab-case change name

2. Check whether a change with the same name already exists

If a change with the same name already exists:

  • Do not overwrite it
  • Let the user decide whether to continue the existing change or use a new name

3. Enter an isolated workspace

Before creating the change, prefer calling superpowers:using-git-worktrees.

If you are already in a suitable isolated worktree, continue directly.

4. Create the change and read its status

Run:

openspec new change "<name>"
openspec status --change "<name>" --json

Read:

  • applyRequires
  • artifacts

The goal is to prioritize the artifact set required to make the change apply-ready.

Read the full file on GitHub · 145 lines

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.

  1. 4d ago First seen · 145 lines · 43 tokens per session scan A 921662c75ba9

Subscribe to this mod's changes

openspec-propose is a skill published in the GitHub repository chhuax/praxis-devos (21 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 43 tokens to every session and 1,188 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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