GenerateBlocks MCP tools

Available in EMCP 3.17.0. GenerateBlocks V2 pairs a styles object with compiled CSS. EMCP Pro builds both from supported insertion inputs, letting an agent create native containers and text without leaving their styles disconnected from the saved block.

Requirements and setup

1. Check installed versions. Active GenerateBlocks V2, verified on 2.4.0. EMCP Pro is required.
2. Enable the pack. Open EMCP Tools → Page Builders, switch on GenerateBlocks under 2. Gutenberg block plugins and choose Save changes in the save bar. Packs are independent of the standalone builder and of each other. A pack whose requirements are not met shows them and cannot be switched on.
3. Switch on its tools. Open EMCP Tools → Tools and select the GenerateBlocks tab. Write tools start disabled. On a new EMCP install the read tools start disabled too, as every Pro tool does. Switch on the tools the task needs and choose Save changes.
4. Connect and inspect. Reconnect your MCP client, then read context and schemas. Start with a draft and inspect the native editor.

Native workflow

GenerateBlocks has its own switch on Page Builders and its own tools tab beside Gutenberg. Read schemas to choose friendly style fields or native raw styles, then use complete serialized markup for updates. GeneratePress configuration remains in Themes and is not required for the block workflow.

Discover installed blocks

Read the catalog, exact attributes and existing mixed Gutenberg content.

Prepare native content

Insert blocks or replace one complete serialized block using the current page hash.

Validate in Gutenberg

Check saved markup, frontend styles and responsive output in the native editor.

Tool reference

All names use the emcp-tools/ namespace. Read the live input schema for optional fields, enums, limits and confirmation requirements; this table lists required inputs only.

Tool	Access	Purpose	Required inputs
generateblocks-get-context	Read	Inspect independent activation state.	None
generateblocks-list-blocks	Read	Discover installed block types.	None
generateblocks-get-block-schema	Read	Inspect attributes and examples.	name or names
generateblocks-get-post-blocks	Read	Read mixed content, markup and hash.	post_id
generateblocks-add-block	Write	Insert supported native content.	post_id, expected_hash, block
generateblocks-update-block	Write	Replace one complete serialized block.	post_id, expected_hash, path, markup
generateblocks-move-block	Write	Move this plugin’s block in the mixed tree.	post_id, expected_hash, path, position
generateblocks-remove-block	Write	Remove a block and its children.	post_id, expected_hash, path

The generateblocks-read and generateblocks-write dispatchers remain for compatibility. Prefer individual tools for new workflows. New writes use the hash from get-post-blocks; legacy dispatchers retain their existing contract.

Example request

Create a GenerateBlocks V2 feature section using native containers and text. Compile matching CSS from supported inputs and preserve the surrounding Gutenberg content.

Read current state before editing and re-read after each save. If a hash is stale, inspect the changed document before rebuilding the request. A successful save is not proof of correct visual output: inspect the native editor and frontend.

Supported scope

• Requires EMCP Pro and an active compatible GenerateBlocks installation.
• The verified content model is GenerateBlocks V2, tested on 2.4.0.
• Update markup must preserve native IDs, styles and compiled CSS. GeneratePress settings are separate.

Troubleshooting

If tools are missing, check versions, dependencies, integration selection, tool switches and user capabilities. Reconnect long-lived MCP clients after plugin updates or selection changes. If output differs after saving, inspect the native document and styles before retrying; do not bypass the adapter with direct metadata writes.

See the GenerateBlocks integration overview, builder setup guide and agent skills.