langchain-ai

Discover plugins from configured dcode marketplaces when a capability is missing or the user asks about available, disabled, not-yet-installed, or outdated plugins and connected marketplaces.

Inspect and explain conversations in the local Deep Agents Code SQLite session store. Use to look up the current thread's title or name, as a fallback when LangSmith trace tooling is unavailable, for offline or untraced sessions, or when asked to identify or…

Review Talon tool placement and defensive prompts when requested or when adding or changing tools or subagents; apply confirmed changes and verify active capabilities.

Guide for creating effective skills that extend agent capabilities with specialized knowledge, workflows, or tool integrations. Use this skill when the user asks to: (1) create a new skill, (2) make a skill, (3) build a skill, (4) set up a skill, (5)…

Guide for creating effective skills that extend agent capabilities with specialized knowledge, workflows, or tool integrations. Use this skill when the user asks to: (1) create a new skill, (2) make a skill, (3) build a skill, (4) set up a skill, (5)…

Check secret handling, staged changes and push targets, destructive Git operations, Docker image hygiene, and new dependencies before consequential coding actions. Use for commits, pushes, container builds or publishes, dependency additions, and explicit…

Capture a Textual terminal UI as an SVG using its headless test harness. Use when asked to make, attach, or preview a screenshot of deepagents-code/dcode or another Textual app, visually verify a TUI state, or render a modal, screen, or widget without a…

Review the current conversation and capture valuable knowledge — best practices, coding conventions, architecture decisions, workflows, and user feedback — into persistent memory (AGENTS.md) or reusable skills. Use when the user says: (1) remember this, (2)…

Add, move, rename, or delete a page on the LangChain docs site. Covers choosing the source directory, writing frontmatter, placing the entry in src/docs.json navigation, adding redirects, and verifying with the lint and broken-link gates. Use when asked to…

Edit a docs page that already has an open pull request, or revise a page in place. Covers checking out the PR's own branch instead of cutting a new one, forked cross-repository PRs, reading the real diff, checking the edit against related pages, and the…

Open a pull request for finished docs changes. Covers cutting the branch from the latest origin/main, the lint and link gates, the commit, writing the PR description in the repo's short format with the AI disclosure line, pushing safely, and watching the PR…

Write or revise documentation prose so it reads like the rest of this site, in the docs team's shared voice. Covers sentence length, cross-link density, how to state defaults and conditions, naming exact identifiers, and what to cut in a revision pass. Use…

Open one Linear DOC ticket and one draft docs PR for a single documentation feature, grounded in product-source evidence.

Use this skill when migrating inline code samples from LangChain docs (MDX files) into external, testable code files that are extracted by this repo’s snippet scripts and used as Mintlify snippets. Applies when extracting code blocks from documentation,…

Build batteries-included agents with planning, context management, subagent delegation, and sandboxed execution. Use for complex, multi-step tasks that need built-in capabilities.

Create a LangChain docs integration listing from a structured GitHub issue submission (issue form fields as JSON). Applies the hosted-guide eligibility policy (50K monthly downloads or maintainer feature override), edits YAML / downloads snippets /…

INVOKE THIS SKILL when using the langgraph CLI to scaffold, develop, build, or deploy LangGraph applications. Covers langgraph new, dev, build, up, deploy, and langgraph.json configuration.

INVOKE THIS SKILL when building, testing, or deploying Managed Deep Agents in LangSmith. Walks a user through their first agent end to end — interviewing them about what they want to build, mapping it onto what MDA can actually do, then scaffolding and…

INVOKE THIS SKILL when routing a LangGraph agent with a decision model (TypeSafe Jev, SemIf) instead of an LLM, or when auditing an existing agent for LLM calls that only produce a routing decision. Covers langchain-typesafe Noul/Choice/Score, reading answers…

INVOKE THIS SKILL when writing ANY LangGraph code. Covers StateGraph, state schemas, nodes, edges, Command, Send, invoke, streaming, and error handling.

Inspect an agent repository and optional traces, interview the user, write reviewed Task Specs, build and audit Harbor tasks, and bootstrap reusable project World Knowledge Skills. Use for agent evals, benchmark design, Task generation, controlled…

Scaffold a minimal local Deep Agent in Python by following the official quickstart, using provider-native web search instead of Tavily. Use when the user wants to quickly build or try a Deep Agent locally.

Scaffold a minimal local Deep Agent in TypeScript by following the official quickstart, using provider-native web search instead of Tavily. Use when the user wants to quickly build or try a Deep Agent locally.

Scaffold a minimal local LangChain agent in Python by following the official quickstart. Use when the user wants to quickly build or try a LangChain agent locally.

INVOKE THIS SKILL when using subagents, task planning, or human approval in Deep Agents. Covers SubAgentMiddleware, TodoList for planning, and HITL interrupts.

INVOKE THIS SKILL when asked about and/or have to implement package versions, installation, or dependency management for LangChain, LangGraph, LangSmith, or Deep Agents. Covers required packages, minimum versions, environment requirements, versioning best…

INVOKE THIS SKILL when building evaluation pipelines for LangSmith. Covers three core components: (1) Creating Evaluators - LLM-as-Judge, custom code; (2) Defining Run Functions - how to capture outputs and trajectories from your agent; (3) Running…

INVOKE THIS SKILL when working with LangSmith tracing OR querying traces. Covers adding tracing to applications and querying/exporting trace data. Uses the langsmith CLI tool.

INVOKE FIRST for any LangChain / LangGraph / Deep Agents agent building project before consulting other skills or writing any agent code. Required starting point for up to date info on framework selection (LangChain vs LangGraph vs Deep Agents vs hybrid…

INVOKE THIS SKILL when creating evaluation datasets, uploading datasets to LangSmith, or managing existing datasets. Covers dataset types (final_response, single_step, trajectory, RAG), CLI management commands, SDK-based creation, and example management. Uses…

INVOKE THIS SKILL when you need human-in-the-loop approval, custom middleware, or structured output. Covers HumanInTheLoopMiddleware for human approval of dangerous tool calls, creating custom middleware with hooks, Command resume patterns, and structured…

INVOKE THIS SKILL at the START of any LangChain/LangGraph/Deep Agents project, before writing any agent code. Determines which framework layer is right for the task: LangChain, LangGraph, Deep Agents, or a combination. Must be consulted before other agent…

Change what Design Agent knows and does. Teach it a new deliverable with a runtime skill, change its instructions, design doctrine or checks, connect MCP servers and tools, or change models and cost caps. Use when someone wants it to make something new,…

Put Design Agent in a team's Slack. Deploy it to Managed Deep Agents (one command, managed Slack app) or self-host it with Docker Compose, verify it with a real request, ship updates, and keep a separate test copy. Use when someone wants the agent running for…

Diagnose Design Agent when something fails. Setup, a render, a deploy, Slack or a model call. Run doctor and the connection tests, read logs and traces, match the symptom to its fix, and never print credentials. Use when a command errors, a reply never comes,…

Bring a fork or clone of Design Agent up to date with the upstream repository while keeping the team's brand, skills and edits, rebuild what changed, and redeploy safely. Use when someone asks to update, upgrade or pull the latest Design Agent.

Run the release gates before tagging a Design Agent release: hygiene, secrets, licenses, docs, tests, and the human reviews.

Move a vendored upstream (HyperFrames, LangSmith skills, Deep Agents skills) to a newer pin, re-vendor its skills unmodified, verify them, and update everything that depends on the pin.

Install and configure Design Agent, add a brand, connect Paper, choose MDA or self-hosting, and diagnose setup without exposing credentials.

Build the active brand pack in workspace/brand/ from a brand guide, website, files or a Paper file, validate it, and have a person review it.

Generate a Quarterly Business Review (QBR) report for the DVD rental business, covering revenue and rental volume with breakdowns by film language, category (genre), and actor. Use whenever someone asks for a QBR, a quarterly report, or a quarterly business…

Produce the weekly 'This Week in Music' customer newsletter by researching the distributor's top genres and assembling a styled HTML page. Use when asked to create, write, or send the weekly newsletter or a music-news roundup.

Produce the weekly 'This Week in Music' customer newsletter by researching the distributor's top genres in parallel and assembling a styled HTML page. Use when asked to create, write, or send the weekly newsletter or a music-news roundup.

Build a report on the rep's sales territory — revenue, top customers, top genres, and trends for Jane's book of business — with a chart. Use when asked for a territory report, sales summary, performance numbers, or 'how is my book doing'.

Build a report on the rep's sales territory — revenue, top customers, top genres, and trends for Jane's book of business — with a chart. Use when asked for a territory report, sales summary, performance numbers, or 'how is my book doing'.

Produce the weekly 'This Week in Music' customer newsletter by researching the distributor's top genres and assembling a styled HTML page. Use when asked to create, write, or send the weekly newsletter or a music-news roundup.

Process an incoming request for quote (RFQ) from a customer: read the email, look up the customer and catalogue prices, compute a quote, have it reviewed, draft the reply, and log it. Use whenever a customer asks for a price, a quote, or to license/buy a…

Build a report on the rep's sales territory — revenue, top customers, top genres, and trends for Jane's book of business — with a chart. Use when asked for a territory report, sales summary, performance numbers, or 'how is my book doing'.

The paid-media business wiki the other skills route to. General doctrine on goals, metrics and attribution, the decision model, platform differences, benchmarks, anomalies, bidding and budget, reporting, write safety, and answer style. Read the page a…

Prepare, review, edit, approve, reject, or reconcile a paid-media change while preserving the human approval and provider verification boundary.

Configure company branding or update report design, tokens, templates, and runtime design guidance. Use during onboarding, when DESIGN.md changes, or when a user requests report styling or layout changes.

Install and configure Paid Media Agent, connect ad platforms, choose MDA or self-hosting, and diagnose setup without exposing credentials.

Set up or update a company's paid-media context and runtime skills in the local workspace. Use before deployment or when business goals, measurement, or campaign conventions change.

Build a reconciled paid-media report or executive summary from deterministic analysis results and render it as a shareable artifact.

Apply company design rules to HTML reports, PDFs, and briefs. Read before creating a shareable document or changing its appearance.

Analyze paid-media performance, compare periods or entities, diagnose issues, and make evidence-backed recommendations across connected ad platforms.

How a Robin workspace's sandbox image works and how to change it — create one, edit or fork an existing one, start from scratch, what setup_script and update_script are for, why a nightly refresh failed, where the build logs are, and how to read a rebuild in…

Monitor a GitHub pull request until CI is green, diagnose failures, and rerun only evidence-backed flaky GitHub Actions jobs.

Run the Open SWE dashboard locally against real GitHub data, signed in with the `gh` CLI instead of a per-machine GitHub App. Use when asked to run the app locally, test a dashboard change against real PRs, reproduce something a screenshot shows, or when…

Use when writing or editing a pull request title or body.

Drive this checkout's dashboard (`ui/`) against the shared preview deployment's real threads, with no local backend. Use to verify a UI change in a browser, count the requests a page makes, or compare a page's behaviour before and after a change.

Author the HTML for a plan artifact, dashboard iframe, or Slack attachment — structure, design plan, available runtime, theming, and craft. Read this before writing HTML for publish_artifact, output_iframe, or slack_attach_html.

Create or update high-quality Linear tickets while preserving the originating report, diagnostic links, attachments, and reporter/requester attribution. Read this whenever someone asks to create, recreate, or update a Linear issue.

Search arXiv preprint repository for papers in physics, mathematics, computer science, quantitative biology, and related fields

Guide for creating effective skills that extend agent capabilities with specialized knowledge, workflows, or tool integrations. Use this skill when the user asks to: create a skill, make a skill, build a skill, set up a skill, initialize a skill, scaffold a…

Create new eval suites for the deepagentsjs monorepo. Handles dataset design, test case scaffolding, scoring logic, vitest configuration, and LangSmith integration. Use when the user asks to: (1) create an eval, (2) write an evaluation, (3) add a benchmark,…

INVOKE THIS SKILL when working with LangSmith tracing OR querying traces. Covers adding tracing to applications and querying/exporting trace data. Uses the langsmith CLI tool.

Intelligently organizes your files and folders across your computer by understanding context, finding duplicates, suggesting better structures, and automating cleanup tasks. Reduces cognitive load and keeps your digital workspace tidy without manual effort.

Use this skill for requests related to LangGraph in order to fetch relevant documentation to provide accurate, up-to-date guidance.

Use this skill for requests related to web research; it provides a structured approach to conducting comprehensive web research

Teaching instructions for Module 5 (Authentication and Authorization) — use when module_id is module-5

Teaching instructions for Module 3 (Dashboard) — use when module_id is module-3

Teaching instructions for Module 4 (Storage) — use when module_id is module-4

Teaching instructions for Module 6 (Deepagents CLI) — use when module_id is module-6

Teaching instructions for Module 2 (Using your deployment) — use when module_id is module-2

Teaching instructions for Module 1 (LangGraph Deployment Architecture) — use when module_id is module-1

Teaching instructions for Module 1 (LangGraph Deployment Architecture) — use when module_id is module-1

INVOKE THIS SKILL when building, iterating on, copying, or sharing a LangSmith Custom App — a React/TypeScript UI that runs inside LangSmith and reads the LangSmith API. Covers the langsmith apps CLI, pulling an existing app's source, replicating an app into…

Design, test, create, and attach LangSmith online evaluators for production traces or conversation threads. Use for workspace evaluators, run or thread rules, sampling, filters, backfills, and evaluator monitoring; use eval-engineering for Harbor tasks and…

Investigate a LangSmith experiment with the LangSmith CLI, identify examples with poor evaluator results, explain likely causes using run evidence, and propose targeted fixes. Use when a user asks why an experiment performed badly or which evaluated examples…

INVOKE THIS SKILL when creating evaluation datasets, uploading datasets to LangSmith, or managing existing datasets. Covers dataset types (final_response, single_step, trajectory, RAG), CLI management commands, SDK-based creation, and example management. Uses…

INVOKE THIS SKILL when building evaluation pipelines for LangSmith. Covers three core components: (1) Creating Evaluators - LLM-as-Judge, custom code; (2) Defining Run Functions - how to capture outputs and trajectories from your agent; (3) Running…

INVOKE THIS SKILL when working with LangSmith tracing OR querying traces. Covers adding tracing to applications and querying/exporting trace data. Uses the langsmith CLI tool.

Reviews changes in the langchain-azure monorepo using package-specific knowledge of langchain-azure-ai, langchain-azure-compute, langchain-azure-cosmosdb, langchain-azure-postgresql, langchain-azure-storage, langchain-sqlserver, and…

Skill for compiling and writing release notes for langchain-azure packages. Use when a new version of a package is being released and the README.md changelog section needs to be updated with a summary of merged PRs.

Classify mortgage documents and write /output/02-classification.json.

Extract mortgage facts and write /output/03-extracted-facts.json.

Apply mortgage policy and write /output/04-underwriting-decision.md.

Check a mortgage packet manifest and write /output/01-packet-index.json.