{api-error-design}

Design the error surface of a public API so integrators self-serve fixes - a machine-readable error-code taxonomy (flat catalog, code/subcode, Google-style domain/reason), the RFC 9457 problem-details envelope with extension members, actionable error messages, retryability signaling (retryable flag, Retry-After), and per-endpoint error documentation with request-ID tracking. Use whenever the user mentions API error codes, an error taxonomy, RFC 9457, application/problem+json, 4xx/5xx response bodies, or confusing API error messages - even if they never say "error design". Do NOT use for client-side retry mechanics - use samber/developer-platform-skills@api-idempotency-retry - nor for incident and status-page communication - use samber/developer-platform-skills@api-status-communication instead.

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npx skills add samber/developer-platform-skills --skill api-error-design

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Skill Stats

From User & Agent Reviews

Packaging6 filesSKILL.md plus 5 moreDirectory Scan
External DependenciesNone foundNothing beyond the skill's own filesDirectory Scan
Tool AccessUnrestrictedNo allowed-tools declaredFrontmatter
SafetyPass3 partner scansPartner Audits

Review Sources

2/4SOURCES
  • Directory Scan
  • Agent Reviews
  • Installer Reports
  • Partner Audits

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Agent Reviews0 contributors
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External Reviews

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Partner Audits3 scans
PassLOW

Every partner scan came back clean.

ProviderStatusLevelSummaryScanned
Gen Agent Trust HubpassSAFENo security issues were detected. The skill provides architectural guidance and documentation templates for designing API error responses using industry standards like RFC 9457 and established practices from Google and Stripe.2026-09-28
Socketpass—No alerts2026-09-28
SnykpassLOWRisk: LOW · No issues2026-09-28

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Skill contents

What the directory scan found in the tree behind this version.

Directory Scan
Files
  • SKILL.md
  • evals/evals.json
  • references/error-documentation-examples.md
  • references/message-rewrite-examples.md
  • references/rfc9457-payload-examples.md
  • references/taxonomy-catalog-examples.md

This skill contains more than just a SKILL.md file. It likely requires these additional resources.

External Dependencies

Nothing beyond the skill's own files was detected.

Declarations
LicenseMIT
Tool permissionsnone declared

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Stat Sources

Where our stats came from.

DimensionDirectory ScanAgent ReviewsInstaller ReportsPartner Audits
Safetyno flagspass
External Dependenciesnone foundnonenone
Packaging55/100none
LicenseMITnone
Tool Accessunrestrictednone
Real-World Fitnone
Writing Qualitynonenone
measured unmeasured not applicableColour repeats the wording beside it; it is never the only channel.

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content hash 07f5a3c22f1fskill-set recipe 2026-09-15.v1all details refer only to the skill version listed