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.
npx skills add cnfeat/top-pm-skills --skill design-handoff-briefgit clone --depth 1 https://github.com/cnfeat/top-pm-skillsWrote 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.
[](https://agentmods.dev/skills/cnfeat/top-pm-skills/design-handoff-brief)<a href="https://agentmods.dev/skills/cnfeat/top-pm-skills/design-handoff-brief"><img src="https://agentmods.dev/badge/skills/cnfeat/top-pm-skills/design-handoff-brief/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/cnfeat/top-pm-skills/design-handoff-brief"><img src="https://agentmods.dev/badge/skills/cnfeat/top-pm-skills/design-handoff-brief.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00083 | $0.00863 |
| Opus 5 | $0.00042 | $0.00432 |
| Sonnet 5 | $0.00017 | $0.00173 |
| Haiku 4.5 | $0.00008 | $0.00086 |
Grade A, and why
design-handoff-brief 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 84 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Design Handoff Brief Skill
Produce a design brief that sets designers up for success — grounding them in user context and constraints before they open Figma, not after they've gone in the wrong direction.
Required Inputs
Ask the user for these if not provided:
- Feature brief or PRD (even rough notes work)
- Designer's name or team (for personalisation)
- Technical constraints (any engineering limitations already known)
- Timeline (when does design need to be done?)
What Designers Actually Need (and PMs Often Skip)
- The user's goal, not the feature name
- The emotional state of the user at this moment in the journey
- What success looks like — how will we know the design worked?
- Constraints: technical, legal, brand, accessibility
- Edge cases that must be handled
- What we're explicitly NOT solving for
Process
- Read the feature brief or PRD provided
- Extract user goal (reframe from feature language to user outcome language)
- Identify constraints — technical limitations, brand guidelines, accessibility requirements
- List edge cases the design must handle
- Define success criteria the design should be evaluated against
- Write a "not in scope" section to prevent scope creep in design
- Validate — Confirm every edge case listed is specific enough to design for, and every out-of-scope item is concrete enough to say "no" to
Output Structure
Design Brief: [Feature Name]
User Goal: (in the user's words, not ours) "When I [situation], I want to [motivation] so that I can [outcome]."
Context & Emotional State: [Where is the user in their journey? What are they feeling? What just happened?]
Design Success Criteria:
- [Criterion 1 — measurable where possible]
- [Criterion 2]
- [Criterion 3]
Constraints:
- Technical: [limitations engineering has flagged]
- Brand: [relevant brand guidelines]
- Accessibility: [WCAG level required, any specific requirements]
- Legal/Compliance: [if applicable]
Edge Cases to Design For:
- [Edge case 1]
- [Edge case 2]
- [Edge case 3]
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.
- 9d ago First seen · 84 lines · 83 tokens per session scan A f85dd6d7974d
design-handoff-brief is a skill published in the GitHub repository cnfeat/top-pm-skills (48 stars, last pushed 3mo ago), licensed MIT. It adds 83 tokens to every session and 863 once invoked, about $0.0004 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 2026-09-03.
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