What is feishu-openapi-skill?

A connection to Feishu or Lark, workplace chat and collaboration platforms, through their instant-messaging APIs. It covers bot, chat, message, file, image, and selected user operations.

Use it to identify bots and chats, inspect members and selected message history, upload images or files, send or reply to messages, and look up basic users.

It avoids manually constructing authenticated API calls for routine bot and chat tasks. Its scope is limited to instant messaging and does not include documents, tables, approvals, or event-receiving services.

feishu-openapi-skill — Skill for Codex by holon-run: A connection to Feishu or Lark, workplace chat and…

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 skills/holon-run/uxc/feishu-openapi-skill

Any agent

npx skills add holon-run/uxc --skill feishu-openapi-skill

Clone the repo

git clone --depth 1 https://github.com/holon-run/uxc

Made for: Codex.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/holon-run/uxc/feishu-openapi-skill.svg)](https://agentmods.dev/skills/holon-run/uxc/feishu-openapi-skill)

Your own site

<a href="https://agentmods.dev/skills/holon-run/uxc/feishu-openapi-skill"><img src="https://agentmods.dev/badge/skills/holon-run/uxc/feishu-openapi-skill.svg" alt="Measured on agentmods" height="20"></a>

Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,425 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. 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 5.1	$0.00036	$0.02425
Opus 5	$0.00018	$0.01213
Sonnet 5	$0.00007	$0.00485
Haiku 4.5	$0.00004	$0.00243

Measured 6d ago against content hash b10323fff633, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

feishu-openapi-skill scanned grade A with 1 finding 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 6d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/generate_openapi.py, scripts/validate.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -sS https://open.feishu.cn/open-apis/auth/v3/tenant_access_token/internal \

skills/feishu-openapi-skill/SKILL.md · 243 lines

How it starts

The opening of the file, as written. The whole thing — 243 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Feishu / Lark IM Skill

Use this skill to run Feishu or Lark IM operations through uxc + OpenAPI.

Reuse the uxc skill for shared execution, auth, and error-handling guidance.

Prerequisites

uxc is installed and available in PATH.
Network access to https://open.feishu.cn/open-apis or https://open.larksuite.com/open-apis.
Access to the curated OpenAPI schema URL:
- https://raw.githubusercontent.com/holon-run/uxc/main/skills/feishu-openapi-skill/references/feishu-im.openapi.json
A Feishu or Lark app with bot capability enabled.
A Feishu or Lark app app_id + app_secret, or a current tenant_access_token if you are using the manual fallback path.

Scope

This skill covers an IM-focused request/response surface:

bot identity lookup
chat lookup
chat member lookup
image and file upload for IM sends
message send and reply
selected message history reads
basic user lookup through contact APIs

This skill does not cover:

docs, bitable, approval, or non-IM product families
the full Feishu or Lark Open Platform surface

Feishu and Lark expose event-delivery models beyond plain request/response APIs, including long-connection event delivery in the platform ecosystem.

Current uxc subscribe status:

request/response IM operations are validated
inbound message intake is validated through the built-in feishu-long-connection transport
live validation confirmed real im.message.receive_v1 events delivered into the subscribe sink for a p2p bot chat

Important runtime notes:

feishu-long-connection is a provider-aware transport inside uxc subscribe; it is not a plain raw WebSocket stream
the runtime opens a temporary WebSocket URL from /callback/ws/endpoint
frames are protobuf binary messages, not text JSON
the runtime sends required event acknowledgements and ping control frames automatically

Endpoint Choice

This schema works against either Feishu or Lark Open Platform base URLs:

Read the full file on GitHub · 243 lines

Files

What ships with it

6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

6d ago First seen · 243 lines · 36 tokens per session scan A b10323fff633

Subscribe to this mod's changes

feishu-openapi-skill is a skill published in the GitHub repository holon-run/uxc (113 stars, last pushed 28d ago), licensed MIT. It adds 36 tokens to every session and 2,425 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Backend and APIs Productivity agent-tools ai-agents api cli developer-tools graphql

lap

LAP CLI -- compile, search, and manage API specs for AI agents. Use when working with API specifications (OpenAPI, GraphQL, AsyncAPI, Protobuf, Postman), compiling specs to LAP format, searching the LAP registry, generating skills from API specs, or publishing APIs. Commands: init, compile, search, get, skill…

Lap-Platform/LAP · 89 tokens

lap

Lap-Platform/LAP · 89 tokens

api-design-patterns

Comprehensive API design patterns covering REST, GraphQL, gRPC, versioning, authentication, and modern API best practices.

aAAaqwq/AGI-Super-Team · 29 tokens

pipefy-api-fallback

Use this skill when an MCP tool fails AND the introspection skill could not resolve the problem. This is the last-resort fallback (Tier 3): call the Pipefy GraphQL API directly using curl or httpx, authenticating with the Service Account (OAuth2) or a Personal Access Token (PAT) available as env var. Follow the 3-tier…

pipefy/ai-toolkit · 86 tokens

spotify

Spotify API integration — playback control, playlists, search, recommendations.

furkangonel/cowrangler · 15 tokens

linear

Linear project management — issues, cycles, and projects via GraphQL API.

furkangonel/cowrangler · 17 tokens

feishu-openapi-skill