claude-skills/engineering/skills/mcp-server-builder/README.md
Reza Rezvani 1851c8fb09 fix(plugins): restructure 9 multi-skill domain plugins into ./skills/ layout
Same root cause as #587/#591 — Claude Code's runtime loader rejects
array-form skills paths like ["./content-production", "./ai-seo", ...]
even when each entry is a valid subdirectory containing SKILL.md.
`claude plugin validate` accepts them but the loader does not.

The proven canonical layout (used by self-improving-agent in #536):

  <plugin>/
  ├── .claude-plugin/plugin.json    skills: "./skills"
  └── skills/
      ├── <skill-1>/SKILL.md
      ├── <skill-2>/SKILL.md
      └── ...

Restructured 9 multi-skill domain plugins:
- business-growth (4 skills moved)
- c-level-advisor (28)
- engineering (36)
- engineering-team (32)
- finance (2)
- marketing-skill (43)
- product-team (12)
- project-management (8)
- ra-qm-team (13)

Also fixed standalone plugins that had root SKILL.md + ./skills/ subdir
(agenthub, autoresearch-agent, executive-mentor, playwright-pro). The
loader rejected them despite skills="./skills" because of the conflicting
root SKILL.md (compare self-improving-agent which works because PR #536
moved its root SKILL.md). Moved each root SKILL.md into ./skills/<name>/.

Restored standalone plugin folders to their original paths after the
multi-skill restructure swept them into parent skills/ directories
(marketplace.json source paths require original locations).

Removed 7 orphaned marketplace entries that pointed to skill folders
without their own plugin.json (content-creator, demand-gen,
fullstack-engineer, aws-architect, product-manager, scrum-master,
skill-security-auditor) — these were already non-functional.

Bumped patch versions on every changed plugin and synced
marketplace.json. Marketplace now lists 29 working plugins (down
from 36).

After merge: users run `/plugin marketplace update claude-code-skills`
followed by `/plugin update --all` to pick up the working layout.
2026-05-02 22:51:20 +02:00

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Markdown

# MCP Server Builder
Generate and validate MCP servers from OpenAPI contracts with production-focused tooling. This skill helps teams bootstrap fast and enforce schema quality before shipping.
## Quick Start
```bash
# Generate scaffold from OpenAPI
python3 scripts/openapi_to_mcp.py \
--input openapi.json \
--server-name my-mcp \
--language python \
--output-dir ./generated \
--format text
# Validate generated manifest
python3 scripts/mcp_validator.py --input generated/tool_manifest.json --strict --format text
```
## Included Tools
- `scripts/openapi_to_mcp.py`: OpenAPI -> `tool_manifest.json` + starter server scaffold
- `scripts/mcp_validator.py`: structural and quality validation for MCP tool definitions
## References
- `references/openapi-extraction-guide.md`
- `references/python-server-template.md`
- `references/typescript-server-template.md`
- `references/validation-checklist.md`
## Installation
### Claude Code
```bash
cp -R engineering/mcp-server-builder ~/.claude/skills/mcp-server-builder
```
### OpenAI Codex
```bash
cp -R engineering/mcp-server-builder ~/.codex/skills/mcp-server-builder
```
### OpenClaw
```bash
cp -R engineering/mcp-server-builder ~/.openclaw/skills/mcp-server-builder
```