Dart Agent Skills

dart-lang/skills is the official Dart team Agent Skills repository. It gives AI coding agents repeatable workflows for common Dart development tasks: unit tests, CLI apps, coverage, runtime errors, generated mocks, package conflicts, static analysis, FFI, Native Assets, ffigen, and pattern matching.

The README describes skills as complementary to MCP: MCP gives an agent access to specialized tools, while a skill teaches the agent how to use tools for a specific task. That is useful for Claude Code, Codex, Gemini CLI, and other coding agents that need Dart-specific guardrails instead of generic language advice.

Knowledge Freshness

The repository is maintained by the Dart team and representative skills include recent 2026 metadata. Dart analyzer behavior, language features, package versions, Native Assets hooks, ffigen, package:test, package:checks, package:mockito, and build tooling can change.

Use the skills for workflow structure and Dart-specific guardrails, then verify exact commands, packages, SDK constraints, analyzer settings, and generated outputs against the target project and current Dart documentation.

Retrieval Sources

This listing is grounded in:

• The dart-lang/skills repository README.
• The public skills.sh listing for Dart skills.
• Representative SKILL.md files for static analysis, FFI/Native Assets, and runtime-error workflows.
• The repository license text.
• Current GitHub repository metadata from the official Dart organization.

Core Workflow

Install all Dart skills into the standard universal skill location:

npx skills add dart-lang/skills --skill '*' --agent universal --yes

Update installed skills:

npx skills update

The README recommends the universal .agents/skills target so most agents can discover the installed skills.

Capability Scope

The repository currently lists these Dart skills:

Production Rules

Use these skills with Dart-specific change control:

• Inspect pubspec.yaml, analysis_options.yaml, SDK constraints, package layout, test conventions, and generated-file rules before editing.
• Run dart analyze and focused tests before broad changes.
• Preview dart fix --dry-run before applying mechanical fixes.
• Review generated mocks, bindings, coverage output, and formatter changes before committing.
• For FFI and Native Assets, keep path handling portable, validate downloaded binaries, and avoid raw shell toolchain orchestration where package APIs exist.
• Treat package conflict resolution as a dependency change with possible transitive runtime impact.
• Do not publish generated examples, stack traces, native source, or test data that expose private code or environment details.

Use Cases

• Ask Codex to run Dart static analysis, preview automated fixes, and resolve remaining analyzer errors safely.
• Use Claude Code to add unit tests for a package with package:test.
• Ask Gemini CLI to resolve pub get dependency conflicts without blindly upgrading unrelated packages.
• Use an agent to set up Native Assets hooks for a C library with hash-checked prebuilt binary fallback.
• Have an assistant generate ffigen bindings rather than writing brittle dart:ffi bindings by hand.

Source Review

• The README describes Agent Skills for Dart as maintained by the Dart team.
• The README says the skills provide tailored instructions for common Dart development workflows.
• The README says skills complement MCP by teaching an agent how to use tools for a specific task.
• The install command uses npx skills add dart-lang/skills --skill '*' --agent universal --yes.
• The available skills list covers unit tests, CLI apps, coverage, FFI/native assets, runtime errors, mocks, package conflicts, static analysis, ffigen, and pattern matching.
• The static-analysis skill documents analysis_options.yaml, strict type checks, analyzer plugins, dart analyze, dart fix --dry-run, dart fix --apply, and formatting.
• The Native Assets skill covers build/link hooks, compiler toolchains, precompiled binary downloads, cryptographic validation, and tree-shaking.
• The license file identifies the repository as BSD-style terms from the Dart authors.

Duplicate Review

Checked current content/skills/, content/tools/, content/mcp/, open pull requests, and repository-wide content for dart-lang/skills, Dart Agent Skills, Dart skills, Dart static analysis skills, Dart FFI skills, Dart Native Assets skills, and representative skill names. No dedicated Dart Agent Skills entry, exact source URL duplicate, target file, or open duplicate PR was found.

Disclosure

Editorial listing. No paid placement or affiliate link is used. The upstream repository is maintained by the Dart team and uses BSD-style license terms.