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Minimal APIs · managedcode | DecimalAI

codingby managedcode

Minimal APIs

managedcode/minimal-apis

Source managedcode/dotnet-skills ↗License MIT

Design and implement Minimal APIs in ASP.NET Core using handler-first endpoints, route groups, filters, and lightweight composition suited to modern .NET services. USE FOR: building new HTTP APIs in ASP.NET Core; creating lightweight microservices; choosing between Minimal APIs and controllers. DO NOT USE FOR: unrelated stacks; generic tasks that do not need this specific guidance. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation com

SkillScore100Maintained

Automatic

Coding pack

Last verified 8/19/2026

What it changes

Passed 22 of 22 test cases with the skill, and 21 of 22 without it.

Without skill95%

With skill100%

Checks it passed that the model alone missed

Create a root group using MapGroup with an empty string path.

1 fixed21 passed either way0 still failing0 broke

Pass-rate lift: +5 pp
Tokens: +116%
Agent turns: 0%
Response time: -31%

Model gemini-3.6-flashMeasured 8/19/2026v222 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/managedcode-minimal-apis/SKILL.md https://app.decimal.ai/s/managedcode-minimal-apis/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add managedcode-minimal-apis, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/managedcode-minimal-apis/ and pins it in .decimal/skills.lock

decimalai skills add managedcode-minimal-apis

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/managedcode-minimal-apis/SKILL.md https://app.decimal.ai/s/managedcode-minimal-apis/SKILL.md

Raw file: /s/managedcode-minimal-apis/SKILL.md ↗ · machine-readable summary at /s/managedcode-minimal-apis.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

What's inside

The instructions your model reads when the skill loads.

SKILL.md273 lines3 files

Minimal APIs

Trigger On

building new HTTP APIs in ASP.NET Core
creating lightweight microservices
choosing between Minimal APIs and controllers
organizing endpoints with route groups
implementing validation and filters

Documentation

References

patterns.md - detailed route groups, filters, TypedResults patterns, parameter binding, error handling, and testing
anti-patterns.md - common Minimal API mistakes to avoid

When to Use Minimal APIs vs Controllers

Use Minimal APIs	Use Controllers
New projects	Existing MVC/API projects
Microservices	Complex model binding
Simple CRUD APIs	OData, JsonPatch
Lightweight handlers	Heavy use of attributes
.NET 8+ projects	Need `[ApiController]` features

Workflow

Define endpoints directly in Program.cs (for small APIs)
Use route groups for related endpoints
Move handlers to separate classes as the API grows
Apply filters for cross-cutting concerns
Use TypedResults for type-safe responses

Track record

Benchmark

22 / 22

test cases passed, vs 21 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v5 — 8/17/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

managedcode / dotnet-skills

catalog/Frameworks/Minimal-APIs/skills/minimal-apis/SKILL.md

View on GitHub ↗

License MITImported 8/17/2026Version v2Bundled 2 files

Other skills for the same job

Published skills whose descriptions closely match this one, with their headline benchmark lift.

managedcode/aspnet-coreBuild, debug, modernize, or review ASP.NET Core applications with correct hosting, middleware, security, configuration, logging, and deployment patterns on current .NET. USE FOR: working on ASP.NET Core apps, services, or middleware; changing auth, routing, configuration, hosting, or deployment behavior; deciding between ASP.NET Core sub-stacks. DO NOT USE FOR: unrelated stacks; generic tasks that do not need this specific guidance. INVOKES: inspect the repository context, edit targeted files, aClose match+9 pp pass-rate lift

More skills from the same source and nearby in the registry, with their headline benchmark lift.

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What's inside

Minimal APIs

Trigger On

Documentation

References

When to Use Minimal APIs vs Controllers

Workflow

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

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