What is lark-a2ui-renderer AGENTS.md?

Repository-specific instructions for a TypeScript renderer that turns a supported subset of A2UI version 0.8 messages into interactive Feishu/Lark card JSON. A2UI is a format for describing user interfaces from an AI system or host application.

Use them to implement or review validation, surface state, Lark-card generation, callback handling, exports, and version-specific renderer code.

They clarify the package’s boundaries, supported protocol version, directory layout, and callbacks, reducing incompatible changes or accidental business logic.

lark-a2ui-renderer AGENTS.md — Instructions file for Codex and OpenCode by danielwpz: Repository-specific instructions for a TypeScript rend

Install

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.

agentmods

npx agentmods add instructions/danielwpz/lark-a2ui-renderer/agents-md

Clone the repo

git clone --depth 1 https://github.com/danielwpz/lark-a2ui-renderer

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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README.md

[![agentmods](https://agentmods.dev/badge/instructions/danielwpz/lark-a2ui-renderer/agents-md.svg)](https://agentmods.dev/instructions/danielwpz/lark-a2ui-renderer/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/danielwpz/lark-a2ui-renderer/agents-md"><img src="https://agentmods.dev/badge/instructions/danielwpz/lark-a2ui-renderer/agents-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 2,120 This file is loaded in full into every session.

When invoked 2,120 The same file — it is already loaded in full.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Token cost

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	$0.02120	$0.02120
Opus 5	$0.01060	$0.01060
Sonnet 5	$0.00424	$0.00424
Haiku 4.5	$0.00212	$0.00212

Measured 5d ago against content hash ed0adecf11fc, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

lark-a2ui-renderer AGENTS.md 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 5d 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.

AGENTS.md · 242 lines

How it starts

The opening of the file, as written. The whole thing — 242 lines — stays where its author put it; the contents beside it link to each section on GitHub.

lark-a2ui-renderer Agent Guide

This directory is an experimental standalone TypeScript package for rendering a constrained A2UI v0.8 subset into Feishu/Lark interactive card JSON.

Project Goal

Build a reusable, application-independent renderer library:

Accept A2UI v0.8 server messages from an LLM or host application.
Validate the supported Lark-card catalog subset.
Maintain A2UI surface state.
Compile the surface into Feishu/Lark Card JSON 2.0.
Inject callback metadata for interactive controls.
Normalize callbacks into A2UI userAction events.

The package must not own application business logic, LLM calls in production, message routing, persistence, or authorization decisions.

Versioning

Follow the official A2UI renderer layout:

src/index.ts re-exports the default supported version.
src/v0_8/ contains the current implementation.
Future protocol versions must go into separate directories such as src/v0_9/; do not mix protocol implementations.
Package exports include . and ./v0_8.

Current target:

A2UI protocol: v0.8 stable.
Catalog id: urn:a2ui:catalog:lark-card:v0_8.
v0.9 work is intentionally out of scope for now.
Dynamic data sources and live pixel-grid rendering are custom experimental extensions on top of v0.8. Do not describe them as official A2UI v0.8 behavior. See docs/dynamic-data-sources.md.

Important Local Rules

Use this package's own TypeScript toolchain. Do not run source through another repository's node_modules, tsx, or test runner.
Do not commit changes unless explicitly asked.
Do not invent Feishu/Lark raw callback payload shapes. Use official docs or capture real payloads with integration tests.
Do not print secrets. In particular, avoid SDK logs that include request config containing app_secret.
Keep probing scripts out of committed source. Use .tmp/ or test/integration only when the probe itself is a deliberate integration test.

Key Files

src/v0_8/types.ts: A2UI subset and renderer contract types.
src/v0_8/surface.ts: Applies A2UI v0.8 messages to surface state.
src/v0_8/render.ts: Compiles A2UI surfaces into Feishu/Lark Card JSON.
src/v0_8/callback.ts: Extracts Feishu/Lark card.action.trigger callbacks into normalized callback input and normalizes that into A2UI userAction.
src/v0_8/validate.ts: Renderer-specific semantic validator.
catalogs/lark-card/v0_8/catalog.json: Current supported A2UI catalog subset.
docs/llm-authoring.md: Instruction sheet for LLM JSON generation tests.
docs/dynamic-data-sources.md: Experimental channel-neutral datasource extension design. It must stay separate from Lark-specific CardKit behavior.
fixtures/: Stable semantic fixtures.
skills/: Distributable agent skill for authoring and validating this A2UI subset. It must stay usable without the full source repository.
scripts/sync-skill-runtime.js: Copies compiled v0.8 runtime files into skills/runtime/v0_8 for standalone skill distribution.
test/support/lark-case-matrix.ts: Shared generated case matrix for offline and real Lark integration tests.
.env.integration.example: Template for real LLM/Lark integration settings.

Read the full file on GitHub · 242 lines

Changes

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.

5d ago First seen · 242 lines · 2,120 tokens per session scan A ed0adecf11fc

Subscribe to this mod's changes

lark-a2ui-renderer AGENTS.md is an instructions file published in the GitHub repository danielwpz/lark-a2ui-renderer (11 stars, last pushed 3mo ago), licensed MIT. It adds 2,120 tokens to every session, about $0.0106 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.

Frontend

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,182 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

lark-a2ui-renderer AGENTS.md