GitDocs
Agent-host schema drift

Claude Code plugin marketplace JSON schema source displayName unsupported

Claude Code rejects a plugin marketplace manifest for unsupported source shape or displayName fields.

search-observedClaude CodeAgent host pluginsAgent-host schema driftlegacy

Agent Quick Fix

The local repository can expose the failure, but the decisive repair depends on the current host, package, runtime, or API contract.

Product: Claude Code
Current-contract area: Claude Code plugin marketplace JSON schema source displayName unsupported
Likely root cause: Claude Code rejects a plugin marketplace manifest for unsupported source shape or displayName fields.
Repair direction: Use the source trail below to align the local install, host, API, or runtime configuration with the current external contract.

Validation Status

Codex searched organically in the validation run. No no-web counterfactual is attached to this page yet.

Symptom

Claude Code rejects a plugin marketplace manifest for unsupported source shape or displayName fields.

Why This Happens

The local repository can expose the failure, but the decisive repair depends on the current host, package, runtime, or API contract.

Verification

Use the source trail below to align the local install, host, API, or runtime configuration with the current external contract.

Common Wrong Fixes

  • Changing local code without checking the current external contract.
  • Retrying the same install, build, or API call with no version/source change.
  • Applying a broad unsafe bypass when a narrow compatibility fix is available.

Codex Search Keywords

These are the search terms observed in a neutral Codex validation run for this failure shape.

Claude Code plugin marketplace JSON schema source displayName unsupported
Claude Code plugin marketplace add marketplace.json plugins source format displayName
github addyosmani agent-skills .claude-plugin plugin.json

Source Trail

GitHub source file/reference: