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 Dragoon0x/canon --skill canon-menusgit clone --depth 1 https://github.com/Dragoon0x/canonWrote 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/dragoon0x/canon/canon-menus)<a href="https://agentmods.dev/skills/dragoon0x/canon/canon-menus"><img src="https://agentmods.dev/badge/skills/dragoon0x/canon/canon-menus/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/dragoon0x/canon/canon-menus"><img src="https://agentmods.dev/badge/skills/dragoon0x/canon/canon-menus.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 | $0.00108 | $0.02320 |
| Opus 5.5 | $0.00043 | $0.00928 |
| Sonnet 5.5 | $0.00022 | $0.00464 |
| Haiku 4.5 | $0.00011 | $0.00232 |
Grade A, and why
canon-menus 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 2mo 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 — 261 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CANON · Menus
The word "menu" is overloaded. Pick the right pattern and the accessibility falls into place.
Menu vs listbox vs combobox vs dropdown-nav
| Pattern | What it is | Use when |
|---|---|---|
| Menu (actions) | List of actions | Rename, Delete, Duplicate. Kebab/overflow menus. |
| Listbox | List of options | Selecting one or more values. Native <select> is the default. |
| Combobox | Text input + list | Typing narrows choices (country picker, tag selector) |
| Navigation dropdown | Disclosure + links | Site nav with sub-sections |
Using the wrong role breaks screen readers. A menu of links is navigation, not a menu. A list of options to choose from is a listbox, not a menu.
Actions menu (the common case)
Triggered by a button. Contains items that perform actions. Disappears on select.
<button
type="button"
aria-haspopup="menu"
aria-expanded="false"
aria-controls="actions-menu"
id="actions-trigger"
>
Actions <svg aria-hidden="true">...</svg>
</button>
<div
role="menu"
id="actions-menu"
aria-labelledby="actions-trigger"
hidden
>
<button role="menuitem">Edit</button>
<button role="menuitem">Duplicate</button>
<hr role="separator" aria-orientation="horizontal">
<button role="menuitem" class="destructive">Delete</button>
</div>
Required ARIA
| Element | Attribute | Value |
|---|---|---|
| Trigger button | aria-haspopup |
"menu" |
| Trigger button | aria-expanded |
"true" / "false" |
| Trigger button | aria-controls |
id of the menu |
| Menu container | role |
"menu" |
| Menu container | aria-labelledby |
id of the trigger |
| Menu item | role |
"menuitem", "menuitemcheckbox", or "menuitemradio" |
| Separator | role |
"separator" |
Keyboard — the WAI-ARIA menu pattern
| Key | Behavior |
|---|---|
| Enter / Space / ArrowDown (on trigger) | Opens menu, focuses first item |
| ArrowUp (on trigger) | Opens menu, focuses last item |
| ArrowDown / ArrowUp (in menu) | Move focus between items, wraps at ends |
| Home / End | First / last item |
| Enter / Space (on item) | Activate item |
| Escape | Close menu, return focus to trigger |
| Tab | Close menu, move focus to next page element |
| Typing a character | Jump to item starting with that letter |
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.
- 2mo ago First seen · 261 lines · 108 tokens per session scan A 21973570ee4f
canon-menus is a skill published in the GitHub repository Dragoon0x/canon (6 stars, last pushed 6mo ago), licensed MIT. It adds 108 tokens to every session and 2,320 once invoked, about $0.0004 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 2026-08-31.
canon-menus compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| canon-menusDragoon0x/canon | Skill | 6 | 6mo ago | MIT | A | 108 | Claude Code, Codex |
| accessibilitydiegosouzapw/awesome-omni-skills | Skill | 170 | 4mo ago | MIT | C | 119 | Claude Code, Codex |
| accessibilityericrisco/rsc-harness | Skill | 503 | 2d ago | MIT | A | 86 | Claude Code, Codex |
| accessibility-auditoyi77/1ai-skills | Skill | 17 | yesterday | MIT | A | 29 | Claude Code |
| a11y-auditgreglas75/zuvo | Skill | 7 | 3d ago | MIT | A | 147 | Claude Code |
| axe-audittonone-ai/tonone | Skill | 77 | 23d ago | MIT | A | 47 | Claude Code |
| accessibility-compliance-accessibility-audit-v2diegosouzapw/awesome-omni-skills | Skill | 170 | 4mo ago | MIT | A | 76 | Claude Code |