fix(claude-plugin): resolve schema validation error in marketplace.json

[alaslibress]

Fix invalid schema in marketplace.json breaking automated setup

Type	Bug Fix
File	./.claude-plugin/marketplace.json
Scope	Marketplace schema validation

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The Bug

When users run the automated setup command:

engram setup claude-code

The CLI fails during the marketplace validation step with:

✘ Failed to add marketplace: Invalid schema: plugins.0.source: Invalid input

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Root Cause

In ./.claude-plugin/marketplace.json, the source object contained a redundant nested "source" key. The strict JSON unmarshaler in the Go CLI (or the Anthropic marketplace schema validation) fails to parse this nested structure — it expects either a flattened string or a different key identifier like "type".

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Changes Made

Before	After
"source": { "source": "git-subdir", "url": "https://github.com/Gentleman-Programming/engram.git", "path": "plugin/claude-code" }	"source": { "type": "git-subdir", "url": "https://github.com/Gentleman-Programming/engram.git", "path": "plugin/claude-code" }

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Note to maintainer

If the Anthropic schema requires a different specific key instead of "type", please adjust during merge. The current nested "source" key is the one actively breaking the automated setup flow.

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Testing

Verified that correcting this JSON structure allows the engram setup claude-code unmarshaling process to pass without throwing the Invalid input panic.

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_{Credits to @alaslibress ;)}

[alaslibress]

On a personal note: I was installing the tool for my personal Claude Code on my Fedora Linux machine and ran into this error. I couldn't resist digging into the repository to see what was going on. My only disappointment was finding out it was just a simple JSON schema fix—I was actually looking forward to poking around the Go codebase since I'm currently learning it! Thks for the awesome tool anyway ;;)