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How LangGraph’s scores are calculated

The full audit trail, recomputed from the verdict data at build time through the same code that produced the leaderboard: verdict × quality × story weight per cell, cells sum to dimension scores, dimensions blend into the PA Score. Every number on the product page is reproducible from this page alone; for why the formula looks like this, see the methodology.

verdict factors: full ×1.0 · partial ×0.6 · disputed ×0.3 · none ×0.0 · n/a excluded from both sides · cell points = weight × quality × factor · cell max = weight × 10

PA Score27/100

Agent-ready 42.8 × 0.30 = 12.84

API quality 3.4 × 0.20 = 0.68

Openness 42.0 × 0.20 = 8.40

Built-in AI 21.0 × 0.15 = 3.15

Automation 12.8 × 0.15 = 1.92

(12.84 + 0.68 + 8.40 + 3.15 + 1.92) ÷ (0.30 + 0.20 + 0.20 + 0.15 + 0.15) = 26.99 ÷ 1.00 = 27.0

Scores are stored to 1 decimal; the product page’s pills round to whole numbers for display. Each dimension below shows the stories, verdicts, and cited evidence behind its number.

Agent-ready42.8/100×0.30 of the PA blend

Outside-in: can YOUR agent reach and drive this product — API, MCP, CLI, headless runs, agent docs.

Point an agent at llms.txt or agent-oriented docsweight 2

2 (weight) × 9 (quality) × 1.0 (full) = 18.0 of 20 max

  • [probe] https://docs.langchain.com/llms.txtPROBE llms.txt: HTTP 200 at https://docs.langchain.com/llms.txt # Docs by LangChain > Documentation for LangSmith, Fleet, and our open source packages. Each section index below lists
  • [probe] https://docs.langchain.com/oss/python/langgraph/overview.mdPROBE docs-md: HTTP 200 at https://docs.langchain.com/oss/python/langgraph/overview.md > ## Documentation Index > Fetch the complete documentation index at: https://docs.langchain.com/llms.txt > Use this fil

Run the product headlessly / in CI for automationweight 2

2 (weight) × 6 (quality) × 0.6 (partial) = 7.2 of 20 max

  • [github] https://github.com/langchain-ai/langgraphpip install -U langgraph
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally.
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI** is a command-line tool for building and running the [Agent Server](/langsmith/agent-server) locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc.
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/streaming.mdLangGraph graphs expose the stream (sync) and astream (async) methods to yield streamed outputs as iterators.
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/persistence.mdCheckpointers persist a thread's graph state as checkpoints. Use them for short-term, thread-scoped memory, including conversation continuity, human-in-the-loop workflows, time travel, and fault tolerance.

Plug MCP servers into this product so it can use their toolsweight 3

3 (weight) × 6 (quality) × 1.0 (full) = 18.0 of 30 max

  • [claimed-docs] https://docs.langchain.com/oss/python/langchain/mcp.mdLangChain agents call tools defined on MCP servers through MCPAdapter, which discovers a server's tools and adapts them into LangChain tools.

Connect an agent via an official MCP serverweight 3

3 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 30 max

  • [claimed-docs] https://docs.langchain.com/oss/python/langchain/mcp.mdLangChain agents call tools defined on MCP servers through MCPAdapter, which discovers a server's tools and adapts them into LangChain tools.

Use an official CLIweight 2

2 (weight) × 9 (quality) × 1.0 (full) = 18.0 of 20 max

  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally.
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI** is a command-line tool for building and running the [Agent Server](/langsmith/agent-server) locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc.
  • [probe] https://docs.langchain.com/langsmith/cliofficial CLI documented at https://docs.langchain.com/langsmith/cli

Drive the product through a documented public APIweight 3

3 (weight) × 7 (quality) × 0.6 (partial) = 12.6 of 30 max

  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI** is a command-line tool for building and running the [Agent Server](/langsmith/agent-server) locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc.
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally.
  • [probe] https://docs.langchain.com/openapi.jsonPROBE openapi: all candidate paths 404 (https://docs.langchain.com/openapi.json, https://docs.langchain.com/swagger.json, https://docs.langchain.com/api/openapi.json, https://docs.langchain.com/.well-known/openapi.json)
  • [probe] https://docs.langchain.com/langsmith/cliofficial CLI documented at https://docs.langchain.com/langsmith/cli
  • [community] https://news.ycombinator.com/item?id=43468435I read the article but have yet to understand why someone would want to use a framework that introduces meaningless abstractions that are not properly documented or well maintained -aka, they often introduce breaking changes.
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/graph-api.mdLangGraph models agent workflows as graphs. You define the behavior of your agents using three key components: State, Nodes, Edges.
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/streaming.mdLangGraph graphs expose the stream (sync) and astream (async) methods to yield streamed outputs as iterators.

Issue scoped/least-privilege API credentials for an agentweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Build against official SDKsweight 2

2 (weight) × 8 (quality) × 1.0 (full) = 16.0 of 20 max

  • [github] https://github.com/langchain-ai/langgraphpip install -U langgraph
  • [github] https://github.com/langchain-ai/langgraphLangGraph is a low-level orchestration framework for building, managing, and deploying long-running, stateful agents.
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/graph-api.mdAt its core, LangGraph models agent workflows as graphs. You define the behavior of your agents using three key components
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/graph-api.mdLangGraph models agent workflows as graphs. You define the behavior of your agents using three key components: State, Nodes, Edges.
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.
  • [probe] https://docs.langchain.com/langsmith/cliofficial CLI documented at https://docs.langchain.com/langsmith/cli
  • [community] https://news.ycombinator.com/item?id=43468435I read the article but have yet to understand why someone would want to use a framework that introduces meaningless abstractions that are not properly documented or well maintained -aka, they often introduce breaking changes.

Subscribe to events via webhooksweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Agent-ready = 89.8 ÷ 210 × 100 = 42.8

API quality3.4/100×0.20 of the PA blend

The programmable surface once an agent is there — machine-readable spec, interactive docs, sandbox, versioning discipline.

Explore an interactive API reference with runnable examplesweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

  • [probe] https://docs.langchain.com/openapi.jsonPROBE openapi: all candidate paths 404 (https://docs.langchain.com/openapi.json, https://docs.langchain.com/swagger.json, https://docs.langchain.com/api/openapi.json, https://docs.langchain.com/.well-known/openapi.json)

Download a machine-readable API spec (OpenAPI or equivalent)weight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI** is a command-line tool for building and running the [Agent Server](/langsmith/agent-server) locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc.
  • [probe] https://docs.langchain.com/openapi.jsonPROBE openapi: all candidate paths 404 (https://docs.langchain.com/openapi.json, https://docs.langchain.com/swagger.json, https://docs.langchain.com/api/openapi.json, https://docs.langchain.com/.well-known/openapi.json)

Test against a sandbox environment without touching production dataweight 1

1 (weight) × 4 (quality) × 0.6 (partial) = 2.4 of 10 max

  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI** is a command-line tool for building and running the [Agent Server](/langsmith/agent-server) locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc.
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/add-memory.mdIn production, use a checkpointer backed by a database: from langgraph.checkpoint.postgres import PostgresSaver
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally.

Rely on versioned APIs with a documented deprecation policyweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

  • [community] https://news.ycombinator.com/item?id=43468435I read the article but have yet to understand why someone would want to use a framework that introduces meaningless abstractions that are not properly documented or well maintained -aka, they often introduce breaking changes.

API quality = 2.4 ÷ 70 × 100 = 3.4

Openness42.0/100×0.20 of the PA blend

Can you leave, inspect, or self-host — data export, open source, portability.

Do everything through the API that I can do in the UIweight 2

2 (weight) × 4 (quality) × 0.6 (partial) = 4.8 of 20 max

  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI** is a command-line tool for building and running the [Agent Server](/langsmith/agent-server) locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc.
  • [probe] https://docs.langchain.com/openapi.jsonPROBE openapi: all candidate paths 404 (https://docs.langchain.com/openapi.json, https://docs.langchain.com/swagger.json, https://docs.langchain.com/api/openapi.json, https://docs.langchain.com/.well-known/openapi.json)
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally.

Export all of my data in open formats and leaveweight 3

3 (weight) × 4 (quality) × 0.6 (partial) = 7.2 of 30 max

  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/add-memory.mdIn production, use a checkpointer backed by a database: from langgraph.checkpoint.postgres import PostgresSaver
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/persistence.mdStores persist application-defined data outside the graph state. Use them for long-term, cross-thread memory, including user preferences, facts, and shared knowledge.
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/persistence.mdCheckpointers persist a thread's graph state as checkpoints. Use them for short-term, thread-scoped memory, including conversation continuity, human-in-the-loop workflows, time travel, and fault tolerance.
  • [github] https://github.com/langchain-ai/langgraphLangGraph is a low-level orchestration framework for building, managing, and deploying long-running, stateful agents.

Read the product's source under an open licenseweight 2

2 (weight) × 5 (quality) × 0.6 (partial) = 6.0 of 20 max

  • [github] https://github.com/langchain-ai/langgraphpip install -U langgraph
  • [github] https://github.com/langchain-ai/langgraphLangGraph is a low-level orchestration framework for building, managing, and deploying long-running, stateful agents.
  • [github] https://github.com/langchain-ai/langgraphLow-level orchestration framework for building stateful agents.

Self-host the core productweight 3

3 (weight) × 8 (quality) × 1.0 (full) = 24.0 of 30 max

  • [github] https://github.com/langchain-ai/langgraphpip install -U langgraph
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally.
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI** is a command-line tool for building and running the [Agent Server](/langsmith/agent-server) locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc.
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/add-memory.mdIn production, use a checkpointer backed by a database: from langgraph.checkpoint.postgres import PostgresSaver

Openness = 42.0 ÷ 100 × 100 = 42.0

Built-in AI21.0/100×0.15 of the PA blend

Inside-out: how agentic the product itself is for its users — built-in assistants, autonomous features.

Get AI-generated insights and suggestions from my data inside the productweight 2

n/a — not applicable to this product: excluded from numerator and denominator

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Set up automations that run autonomously in the backgroundweight 2

2 (weight) × 7 (quality) × 0.6 (partial) = 8.4 of 20 max

  • [github] https://github.com/langchain-ai/langgraphDurable execution — Build agents that persist through failures and can run for extended periods, automatically resuming from exactly where they left off.
  • [github] https://github.com/langchain-ai/langgraphProduction-ready deployment — Deploy sophisticated agent systems confidently with scalable infrastructure designed to handle the unique challenges of stateful, long-running workflows.
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/add-memory.mdIn production, use a checkpointer backed by a database: from langgraph.checkpoint.postgres import PostgresSaver
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/interrupts.mdCheckpointing keeps your place: the checkpointer writes the exact graph state so you can resume later, even when in an error state.
  • [community] https://hn.algolia.com/api/v1/items/41722243The one thing I wish was better developed is persistence and streaming - they give sample code to stream, but it's essentially a complete implementation of streaming that every client needs to implement.

Delegate tasks to a built-in AI assistant inside the productweight 3

n/a — not applicable to this product: excluded from numerator and denominator

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Operate the product with natural-language commandsweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/graph-api.mdAt its core, LangGraph models agent workflows as graphs. You define the behavior of your agents using three key components
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/graph-api.mdLangGraph models agent workflows as graphs. You define the behavior of your agents using three key components: State, Nodes, Edges.
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally.
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.

Built-in AI = 8.4 ÷ 40 × 100 = 21.0

Automation12.8/100×0.15 of the PA blend

Depth of automation primitives — rules, scheduling, bulk operations, webhooks.

Perform bulk operations across many items at onceweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

  • [community] https://news.ycombinator.com/item?id=43468435LangGraph implements a variant of the Pregel/BSP algorithm for orchestrating workflows with cycles (ie. not DAGs) and parallelism without data races. You can design your graph as a state machine if you so desire.
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/streaming.mdLangGraph graphs expose the stream (sync) and astream (async) methods to yield streamed outputs as iterators.
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/streaming.mdIt exposes graph execution through stream modes such as updates, values, messages, custom, checkpoints, tasks, and debug.

Define rules that trigger actions automatically on eventsweight 3

3 (weight) × 4 (quality) × 0.6 (partial) = 7.2 of 30 max

  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/graph-api.mdAt its core, LangGraph models agent workflows as graphs. You define the behavior of your agents using three key components
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/graph-api.mdBy composing Nodes and Edges, you can create complex, looping workflows that evolve the state over time.
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/graph-api.mdLangGraph models agent workflows as graphs. You define the behavior of your agents using three key components: State, Nodes, Edges.
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/interrupts.mdInterrupts allow you to pause graph execution at specific points and wait for external input before continuing.
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.

Schedule recurring jobs or workflowsweight 2

2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max

no evidence cited — the verdict rests on absence of evidence, re-checked on refresh

Version, review, and roll back my automationsweight 1

1 (weight) × 5 (quality) × 0.6 (partial) = 3.0 of 10 max

  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/persistence.mdCheckpointers persist a thread's graph state as checkpoints. Use them for short-term, thread-scoped memory, including conversation continuity, human-in-the-loop workflows, time travel, and fault tolerance.
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/interrupts.mdCheckpointing keeps your place: the checkpointer writes the exact graph state so you can resume later, even when in an error state.
  • [github] https://github.com/langchain-ai/langgraphSeamlessly incorporate human oversight by inspecting and modifying agent state at any point during execution.
  • [claimed-docs] https://docs.langchain.com/langsmith/cli.mdLangGraph CLI is a command-line tool for building and running the Agent Server locally. The resulting server exposes all API endpoints for runs, threads, assistants, etc., and includes supporting services such as a managed database for checkpointing and storage.
  • [claimed-docs] https://docs.langchain.com/oss/python/langgraph/workflows-agents.mdTrace and compare these workflow patterns with LangSmith... Follow the tracing quickstart to see how data flows through each step.

Automation = 10.2 ÷ 80 × 100 = 12.8