Skill names with colons may not conform to Claude Code / Amp skill naming rules

[acsezen]

Hi there! Thank you for this great project — it's been very helpful.

I noticed that several skills in the sdd and mcp plugins may have frontmatter that doesn't conform to the official skill naming specification.

According to the Claude Code skills documentation, the name field in SKILL.md frontmatter must be:

Lowercase letters, numbers, and hyphens only (max 64 characters).

Skills with colon-based names (sdd plugin)

The following skills use sdd: as a namespace prefix, which may cause validation errors in Claude Code and Amp:

• sdd:add-task → may need to be sdd-add-task
• sdd:brainstorm → may need to be sdd-brainstorm
• sdd:create-ideas → may need to be sdd-create-ideas
• sdd:implement → may need to be sdd-implement
• sdd:plan → may need to be sdd-plan

Skills missing the name field (mcp plugin)

These skills have a description but may be missing the name field in their frontmatter:

• setup-codemap-cli/SKILL.md
• setup-context7-mcp/SKILL.md
• setup-serena-mcp/SKILL.md

Error messages observed

⚠ Invalid skill name
Frontmatter name "sdd:add-task" is invalid. Skill name must be lowercase
alphanumeric with hyphens, no trailing hyphen (e.g., "my-skill")

⚠ Missing required fields in frontmatter
Add both "name" and "description" fields to the frontmatter

It may be worth replacing colons with hyphens (e.g., sdd-add-task) and adding the missing name fields, so the skills load cleanly without warnings.

Thanks again for the excellent work!

[LeoVS09]

Thank you @acsezen, glad that it helps you!

Hm, our team uses Claude Code mainly, and didn't see this error. Is it from Amp?
We actually have a reason why it is written like this. Claude code and some other agents by default prefix skill name with plugin name in such format <plugin>:<skill> if name frontmatter is missing, but when skill has name frontmatter, it uses exact name. The first version of the plugin was written for Claude Code even before it had an official skill format, and the name frontmatter wasn't part of it. Later, we added it to keep support of other agents, but in order not to break backward compatibility with scripts, we added the <plugin>: prefix to names.

Looks like we missed name frontmatter for mcp plugin. We will fix it for sure. But I do not want to break existing scripts and GitHub actions, by renaming other plugins. Can you elaborate on this error message? Does it totally stop you from using skills in Amp, or just show you as a warning, and fallback to some generic name?

[LeoVS09]

@acsezen I just checked the code, and plugins that you mentioned have name frontmatter. Can you please check, may it be that you use older version of marketplace?
https://github.com/NeoLabHQ/context-engineering-kit/blob/master/plugins/mcp/skills/setup-codemap-cli/SKILL.md?plain=1#L2