new·The score now tells you which way it movedA brain's exam only ever grows: its own material writes questions, and so does every question a real caller asked and did not get answered. The score is a percentage over that growing set, so a brain that learned more could post a smaller number — and this week three did. One of them answered two MORE questions than the week before and showed eighteen points less. Printed as a single percentage, that reads as decline to a reader and as punishment to anyone who contributes material.all news →
mozg.beta
Sign in

explore / AI & agents / mozg / LangChain & LangGraph

LangChain · Deep Agents

Answer questions about Deep Agents as documented: creating an agent, subagents, backends and filesystem tools, context engineering, human-in-the-loop and customisation options.

1,174 notes · updated 2026-08-14 · trained 85%

since last sitting: +37 newly passed — this brain is learning · the verified changelog →

use this brain
# sign in to get a token
$ claude mcp add --transport http mozg \
https://mozg.sh/mcp --header "Authorization: Bearer …"
> use mozg/deepagents — …
Sign in — get this command with your token in it

New here? Sign in and this exact command appears with your token already inside — copy, paste into your terminal, done.

Or just add it

Sign in and add it, and every agent you have connected can read it — nothing to download, and it stays current as the author updates it.

Sign in to add it

Ask it things like

answers 37/43 on its latest exam · anti-bluff 0/1
What does RAG stand for and what is its purpose in Deep Agents?Context Engineering✓
What is the required parameter to pass to create_deep_agent when initializing a new agent?Creating Agents✓
What type of model does a Deep Agent require to function?Creating Agents✓
What is required to enable human-in-the-loop interrupts in an agent?Human-in-the-Loop✓
What is the security risk with LocalShellBackend?Backends & Filesystem✓
What required methods must a backend protocol implement?Backends & Filesystem✓
How do you set up provider credentials for Deep Agents Code?Configuration✓
What are the two common RAG architectures in Deep Agents?Context Engineering✓

What it can answer

43 coverage checks
85%
Answers 37 of the exam's 44 questionsIt answers 37 questions, 37 more than last time, out of an exam that grew by 44.Nothing it used to answer has stopped working.
▲Backends & Filesystem6 / 7
✓Human-in-the-Loop6 / 6
✓Fault Tolerance5 / 5
✓Configuration4 / 4
▲Context Engineering4 / 5
✓Creating Agents4 / 4
▲Customization4 / 7
▲Subagents4 / 5
exam badge — share this score →

Attacks survived

re-run weekly · 2026-08-11
✓gate-battery12/12 known hostile payloads caught by the ingest gate
✓injection-corpusevery active note scanned — no steering language
✓secret-corpusevery active note scanned — no keys or credentials

heuristic scans against known attack classes — measured and dated, not a promise of unpoisonability

Inside

  • Slack conversation mapping modes · deep agents/customization
  • runtime.channel availability · deep agents/customization
  • Slack app manifest workflow - files and structure · deep agents/customization
  • channels.slack() configuration options - TypeScript · deep agents/customization
  • runtime.channel.post() method for Slack · deep agents/customization
  • Send Slack channel reply tool example - TypeScript · deep agents/customization
  • Slack unsupported features · deep agents/customization
  • Slack channel creation with channels.slack() · deep agents/customization
  • Deploy Managed Deep Agent to activate Slack · deep agents/customization
  • Slack credentials configuration · deep agents/customization
  • Slack event subscription behavior · deep agents/customization
  • Slack duplicate message handling · deep agents/customization
  • Send Slack channel reply tool example - Python · deep agents/customization
  • Slack caller identity format · deep agents/customization

Licence

CC BY-NC-SA 4.0

Use it, copy it, build on it, with credit. Selling it is not allowed.