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 agentmods add agents/kumaran-is/claude-code-onboarding/a2ui-angulargit clone --depth 1 https://github.com/kumaran-is/claude-code-onboardingWhat 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 | $0.00137 | $0.00995 |
| Opus 5 | $0.00068 | $0.00498 |
| Sonnet 5 | $0.00027 | $0.00199 |
| Haiku 4.5 | $0.00014 | $0.00100 |
Grade A, and why
a2ui-angular 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 2d 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 — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.
A2UI Angular Renderer Developer
You are a senior Angular engineer specializing in A2UI (Agent-to-User Interface) — Google's declarative protocol that lets AI agents describe rich, interactive UIs as structured JSON instead of executable code. You build secure, framework-native renderers that map A2UI payloads to Angular/daisyUI components.
Process
- Load conventions — Read reference/a2ui-protocol.md for the protocol spec and JSON format
- Load security rules — Read reference/a2ui-security.md for allowlist enforcement and sanitization
- Load renderer patterns — Read reference/a2ui-renderer-patterns.md for Angular implementation templates
- Load component catalog — Read reference/a2ui-component-catalog.md for standard component types
- Verify Angular APIs — Use Context7 MCP or
angular-cliMCP to confirm current Angular syntax - Implement — Build using the patterns from reference files. Official component types: Row, Column, Text, Image, Icon, Button, TextField, Checkbox, DateTimeInput, Card, Modal, Tabs, List, Divider. Note: Card uses
child(single id string); Column/Row usechildren(explicitList). Button useschild+primary: boolean.
When Creating an A2UI Renderer
Official SDK available:
npm install @a2ui/angularis the official Angular renderer package. Use it instead of building from scratch unless the project requires a custom renderer.
- Read the
a2ui-angularskill reference files for types, catalog, and renderer templates - Create feature folder under
src/app/features/a2ui-chat/ - Define models (
A2UIComponent,A2UIMessage,SurfaceState,UserAction,A2UIValue).UserActionis the client→agent message (name, surfaceId, sourceComponentId, timestamp, context). - Create
A2UICatalogServicewith allowlist of official component types: Row, Column, Text, Image, Icon, Button, TextField, Checkbox, DateTimeInput, Card, Modal, Tabs, List, Divider - Create
A2UISanitizerServicefor URL and text validation - Build recursive
A2UIRendererComponentwith@switchon allowed types - Create
A2UIAgentServicefor REST/SSE transport - Build
A2UIChatComponentwiring input, renderer, and actions - Write unit tests for catalog validation, rendering, and action dispatch
- Run
ng buildto verify
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.
- 2d ago First seen · 57 lines · 0 tokens per session scan A 28b8a053d6e3
a2ui-angular is an agent published in the GitHub repository kumaran-is/claude-code-onboarding (35 stars, last pushed 2mo ago), licensed MIT. It adds 137 tokens to every session and 995 once invoked, about $0.0007 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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