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Agent skill

Frontend Query Mutation

by langflow-ai in langflow-ai/langflow

Guide for implementing Langflow frontend query and mutation patterns with Axios and TanStack React Query v5.

MITAuto-check passedFrontend & Design

Install Frontend Query Mutation

skills CLI
$ npx skills add langflow-ai/langflow --skill frontend-query-mutation -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install langflow-ai/langflow frontend-query-mutation --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/langflow-ai/langflow.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/frontend-query-mutation .claude/skills/frontend-query-mutation && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
frontend-query-mutation
GitHub stars
156k
Token cost
~979 tokens
SKILL.md length
318 words
Files
3 (incl. references)
Skills in repo
10
Repo updated
First seen
Licence
MIT

At a glance

Guide for implementing Langflow frontend query and mutation patterns with Axios and TanStack React Query v5.

  • Works in 3 steps: Identify the change surface. → Implement the hook following existing… → Preserve Langflow conventions.
  • Updating API hooks in controllers/API/queries
  • SKILL.md covers Intent, Architecture Overview, Workflow and Files Commonly Touched, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Frontend Query Mutation is an agent skill from langflow-ai/langflow. Guide for implementing Langflow frontend query and mutation patterns with Axios and TanStack React Query v5. Trigger when creating or updating API hooks in controllers/API/queries, consuming UseRequestProcessor in components, deciding whether to use useQuery or useMutation, handling conditional queries, cache invalidation, mutation error handling, or migrating legacy API calls to the query hook pattern.

Its SKILL.md is about 980 tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files, including reference files (for example `references/query-patterns.md` and `references/runtime-rules.md`).

It sits in Frontend & Design, covering Caching. It works with TanStack. The repository describes itself as: Langflow is a powerful tool for building and deploying AI-powered agents and workflows. The licence is MIT.

When your agent uses it

  • Updating API hooks in controllers/API/queries
  • Consuming UseRequestProcessor in components
  • Deciding whether to use useQuery
  • Handling conditional queries

Example prompts

  • “/frontend-query-mutation”

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

  1. Identify the change surface.
  2. Implement the hook following existing patterns.
  3. Preserve Langflow conventions.

What it can do on your machine

Read from SKILL.md and the folder at commit 504c02f. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Frontend Query Mutation loads about 979 tokens when it runs, and up to ~7.4k if it reads all its reference files. Until then it costs about 108 tokens; SKILL.md has 318 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~108
When it runs · the whole SKILL.md, loaded when a task matches
~979
With references · SKILL.md plus every file in references/, read only if the agent opens them
~7.4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from langflow-ai/langflow at commit 504c02f, republished under its MIT licence (© langflow-ai). 318 words, ~979 tokens.

Download SKILL.mdSave it as .claude/skills/frontend-query-mutation/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.
name
frontend-query-mutation
description
Guide for implementing Langflow frontend query and mutation patterns with Axios and TanStack React Query v5. Trigger when creating or updating API hooks in controllers/API/queries, consuming UseRequestProcessor in components, deciding whether to use useQuery or useMutation, handling conditional queries, cache invalidation, mutation error handling, or migrating legacy API calls to the query hook pattern.

Frontend Query & Mutation

Intent

  • Keep API hooks in controllers/API/queries/{domain}/ as the organized source of truth.
  • Use UseRequestProcessor for consistent retry, invalidation, and error handling.
  • Use Axios api instance for all HTTP calls (never raw fetch for REST).
  • Use performStreamingRequest() for streaming operations (build, chat).
  • Keep cache invalidation in mutation onSettled callbacks.

Architecture Overview

Langflow uses Axios + TanStack React Query v5 for data fetching. There is no oRPC or contract layer. The architecture is:

Component
  -> API hook (controllers/API/queries/{domain}/use-{verb}-{resource}.ts)
    -> UseRequestProcessor (controllers/API/services/request-processor.ts)
      -> useQuery / useMutation (TanStack React Query)
        -> queryFn / mutationFn
          -> api.get/post/patch/delete (Axios instance from controllers/API/api.tsx)
Key Files
FilePurpose
controllers/API/api.tsxAxios instance, ApiInterceptor component, performStreamingRequest()
controllers/API/services/request-processor.tsUseRequestProcessor hook wrapping useQuery/useMutation with retry defaults
controllers/API/helpers/constants.tsURL constants (URLs) and getURL() helper
controllers/API/queries/{domain}/Domain-organized query and mutation hooks
types/api/index.tsuseQueryFunctionType, useMutationFunctionType type helpers
stores/Zustand stores for client-side state

Workflow

  1. Identify the change surface.
    • Read references/query-patterns.md for hook structure, naming, URL patterns, and query/mutation call-site shape.
    • Read references/runtime-rules.md for conditional queries, invalidation, error handling, and streaming.
    • Read both references when a task spans hook creation and runtime behavior.
  2. Implement the hook following existing patterns.
    • Use UseRequestProcessor for query() and mutate() wrappers.
    • Use the api Axios instance for all HTTP calls.
    • Use getURL() for constructing API paths.
    • Type the hook with useQueryFunctionType or useMutationFunctionType.
  3. Preserve Langflow conventions.
    • Query keys are arrays with the hook name: ["useGetFlows"].
    • Mutations invalidate related queries in onSettled.
    • Zustand store updates happen in the query/mutation function, not in components.
    • UseRequestProcessor provides default retry (5 for queries, 3 for mutations) with exponential backoff.

Files Commonly Touched

  • controllers/API/queries/{domain}/use-get-*.ts (query hooks)
  • controllers/API/queries/{domain}/use-post-*.ts (create mutations)
  • controllers/API/queries/{domain}/use-patch-*.ts (update mutations)
  • controllers/API/queries/{domain}/use-delete-*.ts (delete mutations)
  • controllers/API/helpers/constants.ts (URL constants)
  • types/api/index.ts (API type definitions)
  • stores/ (Zustand store updates triggered by queries)

References

  • Use references/query-patterns.md for hook structure, naming conventions, directory layout, and anti-patterns.
  • Use references/runtime-rules.md for conditional queries, invalidation, mutate versus mutateAsync, error handling, and streaming requests.

Treat this skill as the single query and mutation entry point for Langflow frontend work. Keep detailed rules in the reference files instead of duplicating them in project docs.

© langflow-ai, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (references) in .agents/skills/frontend-query-mutation of langflow-ai/langflow.

  • SKILL.md
  • references/query-patterns.md
  • references/runtime-rules.md

Open the folder on GitHubat commit 504c02f

Compare with similar skills

Frontend Query Mutation next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Frontend Query Mutation compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Frontend Query Mutation this skilllangflow-ai/langflow156k—~979Automated safety check: PassMIT
Tanstack QueryMystic-Stars/Axolotl506—~421Automated safety check: PassCustom licence
Tanstack Querysecondsky/claude-skills227—~7.9kAutomated safety check: PassMIT
Tanstack QueryMindrally/skills268—~3.6kAutomated safety check: PassApache-2.0
Tanstack Query Best PracticesDeckardGer/tanstack-agent-skills2221 repos~1.2kAutomated safety check: PassMIT
Veloxdb Scalable Performanceveloxbase/veloxdb646—~1.7kAutomated safety check: PassMIT

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Works with

Categories

Questions about Frontend Query Mutation

What does Frontend Query Mutation do?

Guide for implementing Langflow frontend query and mutation patterns with Axios and TanStack React Query v5. Frontend Query Mutation is an agent skill from langflow-ai/langflow. Guide for implementing Langflow frontend query and mutation patterns with Axios and TanStack React Query v5.

When should I use Frontend Query Mutation?

Frontend Query Mutation fits situations like: updating API hooks in controllers/API/queries; consuming UseRequestProcessor in components; deciding whether to use useQuery; handling conditional queries.

How do I install Frontend Query Mutation in Claude Code?

Run `npx skills add langflow-ai/langflow --skill frontend-query-mutation -a claude-code`. Or copy the skill folder (.agents/skills/frontend-query-mutation in langflow-ai/langflow) into .claude/skills/frontend-query-mutation in your project. Claude Code loads it when a task matches its description.

How do I install Frontend Query Mutation in Codex?

Run `npx skills add langflow-ai/langflow --skill frontend-query-mutation -a codex`. Or copy the skill folder (.agents/skills/frontend-query-mutation in langflow-ai/langflow) into .agents/skills/frontend-query-mutation in your project. Codex loads it when a task matches its description.

Can I use Frontend Query Mutation in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add langflow-ai/langflow --skill frontend-query-mutation -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/frontend-query-mutation, .gemini/skills/frontend-query-mutation, .github/skills/frontend-query-mutation and .opencode/skills/frontend-query-mutation in your project.

What does Frontend Query Mutation need to run?

SKILL.md names no scripts, command-line tools or credentials: Frontend Query Mutation is instructions for the agent only.

Does Frontend Query Mutation access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Frontend Query Mutation safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Frontend Query Mutation use?

Frontend Query Mutation is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Frontend Query Mutation use?

About 979 tokens (SKILL.md is roughly 3.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 6.4k tokens, read only when the agent opens those files.

What are the alternatives to Frontend Query Mutation?

Skills that share tags, products or a category with Frontend Query Mutation: Tanstack Query (Mystic-Stars/Axolotl, 506 stars), Tanstack Query (secondsky/claude-skills, 227 stars), Tanstack Query (Mindrally/skills, 268 stars) and Tanstack Query Best Practices (DeckardGer/tanstack-agent-skills, 222 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Frontend Query Mutation?

langflow-ai (a GitHub organization) maintains it in langflow-ai/langflow, which has 155,573 GitHub stars. The repository holds 10 skills in this directory. The repository was last updated on October 8, 2026.

Source: langflow-ai/langflow on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.