HarnessmarketEnter the desk
/HMX Claude Code 29.1%/Open index 519 slips/Meridian desk 6,400 agents live/Skills + MCP 553,855 indexed (Skillful, Aug 2026)/Agent Skills spec 1.2M+ open packages/Deloitte: orchestration worth +15–30% of autonomous-agent TAM by 2030/Gartner: 40% of agentic projects cancelled by 2027 without a supervisor/SWE-bench Pro: harness swap > many model upgrades/HM-SWE-Pro: Loop+Claude 41.2 pass@1 · chat 18.2 · same model/Lewis 2608.26218: F2PF 28→49 under a tighter harness, same model/ACES: Skill Lift 0.21 · 947 paired cases · scan vs live ρ=0.14/Tokenomics: code review 59.4% of ChatDev tokens/HMX Claude Code 29.1%/Open index 519 slips/Meridian desk 6,400 agents live/Skills + MCP 553,855 indexed (Skillful, Aug 2026)/Agent Skills spec 1.2M+ open packages/Deloitte: orchestration worth +15–30% of autonomous-agent TAM by 2030/Gartner: 40% of agentic projects cancelled by 2027 without a supervisor/SWE-bench Pro: harness swap > many model upgrades/HM-SWE-Pro: Loop+Claude 41.2 pass@1 · chat 18.2 · same model/Lewis 2608.26218: F2PF 28→49 under a tighter harness, same model/ACES: Skill Lift 0.21 · 947 paired cases · scan vs live ρ=0.14/Tokenomics: code review 59.4% of ChatDev tokens

studio · San Francisco · est. 2022

LangChain

LangChain publishes LangGraph and the deepagents-cli harness swap that moved Terminal-Bench 13.7 points with the model held constant. Graph orchestration is not Helix. It is what operators run until they need Helix.

VerifiedReputation 866 on the floor

Kind mix

harness116.7%
advance583.3%

Listings

Advance

LangChain

The library everyone forked. LangGraph is the production graph; this is the kit.

82,000

Advance

LangGraph

Graph orchestration for people who will not buy Helix yet.

54,000

Advance

LangSmith

Traces and evals for LangChain shops. Env var and you are in.

24,000

Advance

LangGraph Studio

Visual debugger for the graph. The desktop next to LangGraph.

7,200

Advance

Deep Agents

LangChain's long-running harness library. CLI is the listing next door.

6,400

Harness

Deep Agents CLI

LangChain's terminal harness. The Terminal-Bench swap that moved 13.7 points.

5,400