product-capability
Translate PRD intent, roadmap asks, or product discussions into an implementation-ready capability plan that exposes constraints, invariants, interfaces, and unresolved decisions before multi-service work starts. Use when the user needs an ecc-native PRD-to-SRS lane instead of vague planning prose.
npx skills add mturac/everything-openai-codex --skill product-capability --agent codex
Same command for any agent — swap --agent for claude-code, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Product Capability This skill turns product intent into explicit engineering constraints. Use it when the gap is not "what should we build?" but "what exactly must be true before implementation starts?" ## When to Use - A PRD, roadmap item, discussion, or founder note exists, but the implementation constraints are still implicit - A feature crosses multiple services, repos, or teams and needs a capability contract before coding - Product intent is clear, but architecture, data, lifecycle, or policy implications are still fuzzy - Senior engineers keep restating the same hidden assumptions during review - You need a reusable artifact that can survive across harnesses and sessions ## Canonical Artifact If the repo has a durable product-context file such as `PRODUCT.md`, `docs/product/`, or a program-spec directory, update it there. If no capability manifest exists yet, create one using the template at: - `docs/examples/product-capability-template.md` The goal is not to create another planning stack. The goal is to make hidden capability constraints durable and reusable. ## Non-Negotiable Rules - Do not invent product truth. Mark unresolved questions explicitly. - Separate user-visib
- When to Use
- Canonical Artifact
- Non-Negotiable Rules
- Inputs
- Core Workflow
- 1. Restate the capability
- 2. Resolve capability constraints
- 3. Define the implementation-facing contract
- 4. Translate into execution
- Output Format
- Good Outcomes
What does the product-capability skill do?
Translate PRD intent, roadmap asks, or product discussions into an implementation-ready capability plan that exposes constraints, invariants, interfaces, and unresolved decisions before multi-service work starts. Use when the user needs an ecc-native PRD-to-SRS lane instead of vague planning prose.
How do I install it?
Run `npx skills add mturac/everything-openai-codex --skill product-capability --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From mturac/everything-openai-codex, a repository with 84 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.