Decocms MCP Deploy

MCP Deploy Pipeline — decocms/mcps

When to Use This Skill

• Understanding why a deploy/publish did not trigger
• Adding a new MCP to the CI/CD pipeline
• Debugging workflow failures
• Figuring out which workflow handles which MCP type

Two Deployment Platforms

kubernetes-bun (HTTP custom servers)

MCPs hosted on Deco infrastructure. Deployed by publishing to the registry — the platform auto-redeploys when registry is updated.

Workflow: publish-registry.yml → scripts/publish-one.ts → HTTP POST to studio.decocms.com

cloudflare-workers (CF Worker MCPs)

MCPs hosted on Cloudflare Workers. Deployed via deco CLI (deco deploy).

Workflow: deploy.yml → scripts/deploy.ts → deco deploy ./dist/server

Official external servers (app.json only)

MCPs pointing to external servers (Cloudflare official, Grain, Apify, etc.). No server deployment needed — only registry metadata published.

Workflow: publish-registry.yml only

Workflow Summary

No deploy-preview.yml — preview deploys on PRs were removed.

Detection Logic

detect-changed-mcps.ts

Detects which MCPs have changed based on:

1. MCPs in deploy.json with watch patterns matching changed files
2. Registry-only MCPs (have app.json but NOT in deploy.json) — detected if any file in their dir changed

deploy.json — controls what gets deployed

{
  "mcp-name": {
    "site": "site-name",
    "entrypoint": "./dist/server/main.js",
    "platformName": "kubernetes-bun",
    "watch": ["mcp-name/**", "shared/**"]
  }
}

• kubernetes-bun: entry exists for detection, but deploy.ts exits early (publish-registry handles deploy)
• cloudflare-workers: entry triggers deco deploy via deploy.ts

deploy.ts Logic

if wrangler.toml exists → CF Worker → build + deco deploy
else                    → kubernetes-bun → exit 0 (publish-registry handles it)

CF Worker MCPs (platformName: cloudflare-workers)

sora, gemini-pro-vision, pinecone, reddit, replicate, readonly-sql, datajud, whisper

All have wrangler.toml in their directory.

Adding a New MCP to the Pipeline

Custom server (kubernetes-bun)

1. Add to deploy.json with platformName: kubernetes-bun
2. Add app.json — publish-registry.yml handles it automatically

CF Worker MCP

1. Add to deploy.json with platformName: cloudflare-workers
2. Ensure wrangler.toml exists in the MCP dir
3. Optionally add app.json for registry metadata

Official server (app.json only)

1. Just create app.json — no deploy.json entry needed
2. publish-registry.yml auto-detects it as a registry-only MCP

publish-registry.yml

• Filters all changed MCPs that have an app.json
• Runs scripts/publish-one.ts <mcp> for each
• Posts to studio.decocms.com/org/deco/registry/publish-request
• Uses PUBLISH_API_KEY secret
• Has dry_run option for testing

Manual Deploy / Publish

Both deploy.yml and publish-registry.yml support workflow_dispatch with a comma-separated mcps input:

# Deploy specific CF Worker MCPs manually
mcps: "pinecone,reddit"

# Publish specific MCPs to registry manually
mcps: "perplexity,slack-mcp"

Secrets Required