Agentic MCP — local coding tools for ChatGPT Developer Mode and other MCP clients. Tested with ChatGPT Plus via HTTPS tunnel; availability varies by
MCP MCP server exists for a simple reason — assistants are far more useful when they can act on MCP directly instead of describing what you should do. Agentic MCP — local coding tools for ChatGPT Developer Mode and other MCP clients. Tested with ChatGPT Plus via HTTPS tunnel; availability varies by plan and rollout. Independent project, not affiliated with OpenAI.
Agentic MCP connects ChatGPT Web Developer Mode to your local repositories through a secure Model Context Protocol (MCP) server. It supports structured file editing, shell execution, Git worktrees, semantic navigation and checkpoints.
Installation goes through your MCP client rather than a global install: point it at mcp-agentic-server on npm and it is fetched when the client starts. The copy-paste blocks for Claude Desktop, Claude Code and Cursor are further down this page.
Once MCP is connected, these are the calls the assistant has available:
Mode — Tools includedopen_workspace — Opens a project. Supports mode="checkout" or mode="worktree"read — Hardened file reader with startLine, endLine, offset, limitwrite — Create or overwrite filesedit — Targeted string replacementsbash — Fallback for shell interactions that have no typed tool; prefer run_package_script for package scripts and the Git tools for Gitworkspace_summary — Compact architectural summary of the workspaceproject_bootstrap — Scans package managers, monorepo bounds, and base dependenciesread_many — Read multiple files at oncetree — Directory tree visualizationfile_dependencies — Inward and outward dependency mapcheckpoint_ — Save, restore, list, or delete snapshotsYou will need one environment variable: AGENTIC_ALLOWED_ROOTS. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.
Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. MCP's toolset — Mode, open_workspace, read and 11 more — is a fair guide to whether it matches your workflow. It is maintained by hugolsramos01-bit; worth a glance at recent repository activity before you build anything load-bearing on it.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
| Tool | What it does |
|---|---|
| Mode | Tools included |
| open_workspace | Opens a project. Supports mode="checkout" or mode="worktree". |
| read | Hardened file reader with startLine, endLine, offset, limit. |
| write | Create or overwrite files. |
| edit | Targeted string replacements. |
| bash | Fallback for shell interactions that have no typed tool; prefer run_package_script for package scripts and the Git tools for Git. |
| workspace_summary | Compact architectural summary of the workspace. |
| project_bootstrap | Scans package managers, monorepo bounds, and base dependencies. |
| read_many | Read multiple files at once. |
| tree | Directory tree visualization. |
| file_dependencies | Inward and outward dependency map. |
| checkpoint_ | Save, restore, list, or delete snapshots. |
| edit_dry_run | Preview edits without writing. |
| worktree_ | Manage isolated git worktrees (create, list, sync, teardown). |
{
"mcpServers": {
"agentic-mcp": {
"command": "npx",
"args": ["-y", "mcp-agentic-server@latest", "stdio"],
"env": {
"AGENTIC_ALLOWED_ROOTS": "C:/path/to/projects"
}
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| AGENTIC_ALLOWED_ROOTS | Configuration value read at startup. | Optional |
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