mcpField
M
morph-apply

morph-apply

github.com/parcadeiDevelopment3.9k488 installsUpdated 39w ago
Repository

About morph-apply

Morph Fast Apply edits files through the Morph Apply API using an instruction and code markers, without requiring the full file to be read first. It is intended for large files and grouped edits; use requires the morph server and MORPH_API_KEY.

Key features

  1. 01Edit files using natural-language instructions
  2. 02Place changes with code markers
  3. 03Batch related edits in one operation
  4. 04Works without reading the full file first

Use cases

  1. 01Editing a large file outside the current context
  2. 02Applying several related changes at once
  3. 03Adding logging or error handling to a function

MCP support

This skill requires the morph MCP server configured in mcp_config.json with MORPH_API_KEY. It uses that server to access the Morph Apply API.

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/parcadei/continuous-claude-v3 --skill morph-apply

After installing, type/morph-applyin Claude Code to confirm it loaded.

Details

From the project README

Morph Fast Apply

Fast, AI-powered file editing using the Morph Apply API. Edit files without reading them first. Processes at 10,500 tokens/sec with 98% accuracy.

When to Use

  • Fast file edits without reading entire file first
  • Batch edits to a file (multiple changes in one operation)
  • When you know what to change but file is large
  • Large files where reading would consume too many tokens

Key Pattern: Code Markers

Use // ... existing code ... (or language-appropriate comments) to mark where edits go:

# ... existing code ...
try:
    result = process()
except Exception as e:
    log.error(e)
# ... existing code ...

The API intelligently places your edit in the right location.

Usage

Add error handling
uv run python -m runtime.harness scripts/mcp/morph_apply.py \
    --file "src/auth.py" \
    --instruction "Add error handling to login function" \
    --code_edit "# ... existing code ...
try:
    user = authenticate(credentials)
except AuthError as e:
    log.error(f'Auth failed: {e}')
    raise
# ... existing code ..."
Add logging
uv run python -m runtime.harness scripts/mcp/morph_apply.py \
    --file "src/api.py" \
    --instruction "Add debug logging" \
    --code_edit "# ... existing code ...
logger.debug(f'Processing request: {request.id}')
# ... existing code ..."
TypeScript example
uv run python -m runtime.harness scripts/mcp/morph_apply.py \
    --file "src/types.ts" \
    --instruction "Add user validation" \
    --code_edit "// ... existing code ...
if (!user) throw new Error('User not found');
if (!user.isActive) throw new Error('User inactive');
// ... existing code ..."

Parameters

ParameterDescription
--fileFile path to edit (required)
--instructionHuman description of the change (required)
--code_editCode snippet with markers showing where to place edit (required)

vs Claude's Edit Tool

ToolBest For
morph-applyFast edits, don't need to read file first, large files, batch edits
Claude EditSmall precise edits when file is already in context

Use morph-apply when:

  • File is not in context and reading it would be expensive
  • File is very large (>500 lines)
  • Making multiple related edits at once
  • You know the context of the change (function name, class, etc.)

Use Claude Edit when:

  • File is already in context from prior Read
  • Very precise edits requiring exact old/new string matching
  • Small files (<200 lines)

MCP Server Required

Requires morph server in mcp_config.json with MORPH_API_KEY.

Performance

  • Speed: 10,500 tokens/sec
  • Accuracy: 98% correct placement
  • Token savings: Don't need to read entire file first

Comments

Markdown supported