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 willdady/platypus --skill card-conventionsgit clone --depth 1 https://github.com/willdady/platypusWrote 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/willdady/platypus/card-conventions)<a href="https://agentmods.dev/skills/willdady/platypus/card-conventions"><img src="https://agentmods.dev/badge/skills/willdady/platypus/card-conventions/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/willdady/platypus/card-conventions"><img src="https://agentmods.dev/badge/skills/willdady/platypus/card-conventions.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 | $0.00030 | $0.00622 |
| Opus 5.5 | $0.00012 | $0.00249 |
| Sonnet 5.5 | $0.00006 | $0.00124 |
| Haiku 4.5 | $0.00003 | $0.00062 |
Grade A, and why
card-conventions 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 today.
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 — 72 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Frontend Card Conventions
The Workspace home's Agents, Boards, Dashboards, Triggers and Skills cards are the reference implementation; a new card list reads the same way.
What clicking a card opens
A card opens the item's main view, unless it carries an explicit primary button. The primary button is then the card's one action, and the card itself stays a plain, non-clickable surface.
| Item | Card click opens | Why |
|---|---|---|
| Agent | nothing — New chat is primary | the visible button is the main action |
| Board | the board | its main view |
| Dashboard | the dashboard | its main view |
| Trigger | its runs, filtered to it | the runs are what a Trigger produces |
| Skill | Edit | it has no view beyond its settings |
An item with no view beyond its settings opens Edit. Edit always lives in the ⋮ menu too, so it is reachable from every card.
The ⋮ menu order
Edit
item-specific (Pin, Promote to organization, Manage attachments, …)
Clone
Enable / Disable
───────── separator
Delete
Skip the items that do not apply and keep the rest in this order. Delete takes the destructive style.
Shared items
A Shared resource attached to a Workspace (scope: "organization") is locked
there. Its card gets a ⋮ menu with:
- Edit in org settings, linking to the item in the organization settings,
only for a User who can manage Shared resources (
canManageSharedResource); - the item-specific items that still apply (Pin);
- separator, then Detach, in Delete's place.
Detach is always a named menu item that opens the shared Detach dialog
(DetachSharedDialog). A Shared card's own click opens its main view if it has
one, and otherwise does nothing. When the User has no items to offer, the card
has no ⋮ button at all.
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.
- today First seen · 72 lines · 30 tokens per session scan A 8ce3df8d3339
card-conventions is a skill published in the GitHub repository willdady/platypus (120 stars, last pushed yesterday), licensed MIT. It adds 30 tokens to every session and 622 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-10-15.
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