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Agent skill

Graphql Expert

by RightNow-AI in RightNow-AI/openfang

GraphQL expert for schema design, resolvers, subscriptions, and performance optimization

Apache-2.0Auto-check passedBackend & APIs

Install Graphql Expert

skills CLI
$ npx skills add RightNow-AI/openfang --skill graphql-expert -a claude-code

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

GitHub CLI
$ gh skill install RightNow-AI/openfang graphql-expert --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/RightNow-AI/openfang.git skills-src && mkdir -p .claude/skills && cp -r skills-src/crates/openfang-skills/bundled/graphql-expert .claude/skills/graphql-expert && 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
graphql-expert
GitHub stars
18k
Token cost
~835 tokens
SKILL.md length
429 words
Files
1
Skills in repo
68
Repo updated
First seen
Licence
Apache-2.0

At a glance

GraphQL expert for schema design, resolvers, subscriptions, and performance optimization

  • Tasks that involve GraphQL
  • SKILL.md covers Key Principles, Techniques, Common Patterns and Pitfalls to Avoid
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Graphql Expert is an agent skill from RightNow-AI/openfang. GraphQL expert for schema design, resolvers, subscriptions, and performance optimization

Its SKILL.md is about 840 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Backend & APIs, covering GraphQL. It works with GraphQL. The repository describes itself as: Open-source Agent Operating System. The licence is Apache-2.0.

When your agent uses it

  • Tasks that involve GraphQL

Example prompts

  • “/graphql-expert”

What it can do on your machine

Read from SKILL.md and the folder at commit acf2587. 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

Graphql Expert loads about 835 tokens when it runs. Until then it costs about 26 tokens; SKILL.md has 429 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~26
When it runs · the whole SKILL.md, loaded when a task matches
~835

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 RightNow-AI/openfang at commit acf2587, republished under its Apache-2.0 licence (© RightNow-AI). 429 words, ~835 tokens.

Download SKILL.mdSave it as .claude/skills/graphql-expert/SKILL.md (or your agent's skills folder).
name
graphql-expert
description
GraphQL expert for schema design, resolvers, subscriptions, and performance optimization

GraphQL Expert

A backend API architect with deep expertise in GraphQL schema design, resolver implementation, real-time subscriptions, and query performance optimization. This skill provides guidance for building robust, well-typed GraphQL APIs that scale efficiently while maintaining an excellent developer experience for API consumers.

Key Principles

  • Design schemas around the domain model, not the database schema; GraphQL types should represent business concepts with clear relationships
  • Use input types for mutations and keep query arguments minimal; complex filtering belongs in dedicated input types
  • Prevent the N+1 query problem proactively by implementing DataLoader patterns for every resolver that accesses a data source
  • Treat the schema as a contract; use deprecation directives before removing fields and version through additive changes rather than breaking ones
  • Enforce query complexity limits and depth restrictions at the server level to prevent abusive or accidentally expensive queries

Techniques

  • Define types with clear nullability: non-null (String!) for required fields, nullable for fields that may genuinely be absent
  • Implement resolvers that return promises and batch data access; use DataLoader to batch and cache database calls within a single request
  • Set up subscriptions over WebSocket (graphql-ws protocol) with proper connection lifecycle handling (init, ack, keep-alive, terminate)
  • Use fragments to share field selections across queries and reduce duplication in client-side code
  • Apply custom directives (@auth, @deprecated, @cacheControl) for cross-cutting concerns like authorization and cache hints
  • Implement cursor-based pagination following the Relay connection specification (edges, nodes, pageInfo with hasNextPage and endCursor)
  • Structure error responses with extensions field for error codes and machine-readable metadata alongside human-readable messages
Show full SKILL.md (177 more words)Show less

Common Patterns

  • Schema Federation: Split a monolithic schema into domain-specific subgraphs that compose into a unified supergraph via a gateway, enabling independent team ownership
  • Persisted Queries: Hash and store approved queries server-side; clients send only the hash, reducing bandwidth and preventing arbitrary query execution
  • Optimistic UI Updates: Design mutations to return the mutated object so clients can update their local cache immediately without a refetch
  • Batch Mutations: Accept arrays in input types for bulk operations while returning per-item results with success/failure status for each entry

Pitfalls to Avoid

  • Do not expose raw database IDs as the primary identifier; use opaque, globally unique IDs (base64 encoded type:id) for Relay compatibility
  • Do not nest resolvers deeply without complexity analysis; a query requesting 5 levels of nested connections can explode into millions of database rows
  • Do not return generic error strings; structure errors with codes, paths, and extensions so clients can programmatically handle different failure modes
  • Do not skip input validation in resolvers; even though the schema enforces types, business rules like max lengths and allowed values need explicit checks

© RightNow-AI, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in crates/openfang-skills/bundled/graphql-expert of RightNow-AI/openfang.

Open the folder on GitHubat commit acf2587

Compare with similar skills

Graphql Expert 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.

Graphql Expert compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Graphql Expert this skillRightNow-AI/openfang18k—~835Automated safety check: PassApache-2.0
Nodejs Backend Patternsever-works/ever-works16218 repos~4kAutomated safety check: PassAGPL-3.0
API DesignerJeffallan/claude-skills12k1 repos~2kAutomated safety check: PassMIT
GraphQL Operations with CodegenChrisWiles/claude-code-showcase6.1k3 repos~1.5kAutomated safety check: PassNone
API Design Principlesjh941213/my-cc-harness12618 repos~3.4kAutomated safety check: PassNone
API And Interface Designdzhalaevd/Donatello1358 repos~2.6kAutomated safety check: PassApache-2.0

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Works with

Categories

Questions about Graphql Expert

What does Graphql Expert do?

GraphQL expert for schema design, resolvers, subscriptions, and performance optimization. Graphql Expert is an agent skill from RightNow-AI/openfang.

When should I use Graphql Expert?

Graphql Expert fits situations like: tasks that involve GraphQL.

How do I install Graphql Expert in Claude Code?

Run `npx skills add RightNow-AI/openfang --skill graphql-expert -a claude-code`. Or copy the skill folder (crates/openfang-skills/bundled/graphql-expert in RightNow-AI/openfang) into .claude/skills/graphql-expert in your project. Claude Code loads it when a task matches its description.

How do I install Graphql Expert in Codex?

Run `npx skills add RightNow-AI/openfang --skill graphql-expert -a codex`. Or copy the skill folder (crates/openfang-skills/bundled/graphql-expert in RightNow-AI/openfang) into .agents/skills/graphql-expert in your project. Codex loads it when a task matches its description.

Can I use Graphql Expert 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 RightNow-AI/openfang --skill graphql-expert -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/graphql-expert, .gemini/skills/graphql-expert, .github/skills/graphql-expert and .opencode/skills/graphql-expert in your project.

What does Graphql Expert need to run?

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

Does Graphql Expert 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 Graphql Expert 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 Graphql Expert use?

Graphql Expert is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Graphql Expert use?

About 835 tokens (SKILL.md is roughly 3.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Graphql Expert?

Skills that share tags, products or a category with Graphql Expert: Nodejs Backend Patterns (ever-works/ever-works, 162 stars), API Designer (Jeffallan/claude-skills, 12k stars), GraphQL Operations with Codegen (ChrisWiles/claude-code-showcase, 6.1k stars) and API Design Principles (jh941213/my-cc-harness, 126 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Graphql Expert?

RightNow-AI (a GitHub organization) maintains it in RightNow-AI/openfang, which has 18,216 GitHub stars. The repository holds 68 skills in this directory. The repository was last updated on July 2, 2026.

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