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langbot-eba-adapter-dev

langbot-eba-adapter-dev is a skill for Claude Code, Codex from langbot-app/LangBot. It costs 73 tokens per session (3,516 once invoked), scanned A, original, Apache-2.0.

A development guide for LangBot adapters, which connect the application to messaging services such as Telegram and Discord. It explains how incoming platform events and messages are converted into LangBot's shared format.

In plain words
What is it for?
It helps add or migrate messaging-platform adapters, test event and message conversion, run live adapter checks, and work with LangBot's standalone plugin runtime.
Why use it?
It prevents each messaging service's different data formats from spreading through the rest of the application and helps keep related APIs in sync.

Skill for Claude CodeCodex

not rated 18k today A scan 73 tokens original Apache-2.0
View the source file langbot-app/LangBot
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/langbot-app/langbot/langbot-eba-adapter-dev
Any agent
npx skills add langbot-app/LangBot --skill langbot-eba-adapter-dev
Clone the repo
git clone --depth 1 https://github.com/langbot-app/LangBot

Made for: Claude Code, 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.

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README.md
[![agentmods](https://agentmods.dev/badge/skills/langbot-app/langbot/langbot-eba-adapter-dev.svg)](https://agentmods.dev/skills/langbot-app/langbot/langbot-eba-adapter-dev)
Your own site
<a href="https://agentmods.dev/skills/langbot-app/langbot/langbot-eba-adapter-dev"><img src="https://agentmods.dev/badge/skills/langbot-app/langbot/langbot-eba-adapter-dev.svg" alt="Measured on agentmods" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,516 The whole file, excluding the scripts and references it only reads on demand.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00073 $0.03516
Opus 5 $0.00036 $0.01758
Sonnet 5 $0.00015 $0.00703
Haiku 4.5 $0.00007 $0.00352

Measured 4d ago against content hash bd83f1e8b2bc, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

langbot-eba-adapter-dev 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 4d 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.

skills/skills/langbot-eba-adapter-dev/SKILL.md · 302 lines

How it starts

The opening of the file, as written. The whole thing — 302 lines — stays where its author put it; the contents beside it link to each section on GitHub.

LangBot EBA Adapter Development

Use this skill when implementing or reviewing a LangBot platform adapter under the Event-Based Agents architecture.

Controlling a running instance via MCP

Beyond writing code, you can drive a live LangBot instance over MCP — no raw HTTP needed. Two MCP servers exist (both reuse existing API keys; see AGENTS.md):

  • LangBot instance — http://<host>:5300/mcp (auth: web-UI lbk_ key or the api.global_api_key from config.yaml). Manage bots, pipelines, models, knowledge bases, and skills. See the langbot-mcp-ops skill.
  • LangBot Space marketplace — https://space.langbot.app/mcp (auth: Personal Access Token). Search plugins / MCP servers / skills. See the langbot-space-ops skill.

Any change to an agent-accessible HTTP API endpoint must keep the matching MCP tool and these skills in sync.

Core Rule

Do not let platform-native event or message shapes leak into LangBot's common path. Each adapter must convert incoming SDK objects into unified EBA entities before dispatch:

  • Events: langbot_plugin.api.entities.builtin.platform.events
  • Message chains: langbot_plugin.api.entities.builtin.platform.message.MessageChain
  • Users/groups/members: langbot_plugin.api.entities.builtin.platform.entities
  • Raw platform objects may remain only in source_platform_object for debugging or platform-specific escape hatches.

Start Here

  1. Read the EBA design docs in LangBot/docs/event-based-agents/.
  2. Read the architecture-level acceptance checklist before writing or validating code:
    • LangBot/docs/event-based-agents/adapters/acceptance-checklist.md
  3. Read the current reference adapter before writing code. Prefer Telegram first:
    • LangBot/src/langbot/pkg/platform/adapters/telegram/
    • LangBot/docs/event-based-agents/adapters/telegram.md
  4. Read the legacy source adapter for the target platform:
    • LangBot/src/langbot/pkg/platform/sources/<platform>.py
    • LangBot/src/langbot/pkg/platform/sources/<platform>.yaml
  5. Inspect SDK entity definitions in langbot-plugin-sdk/src/langbot_plugin/api/entities/builtin/platform/.
  6. Search before assuming APIs. Platform SDKs change often.

Read the full file on GitHub · 302 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.

  1. 4d ago First seen · 302 lines · 73 tokens per session scan A bd83f1e8b2bc

Subscribe to this mod's changes

langbot-eba-adapter-dev is a skill published in the GitHub repository langbot-app/LangBot (17,643 stars, last pushed today), licensed Apache-2.0. It adds 73 tokens to every session and 3,516 once invoked, about $0.0004 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.

LLMPlanningTestingWriting and docsagentopenaiqqtelegramwechat
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