# ncm2/ncm2

:heart: Slim, Fast and Hackable Completion Framework for Neovim

Repository: https://github.com/ncm2/ncm2
Canonical: https://ross.abutalabs.com/products/ncm2
Language: Python
License: MIT
License Family: permissive
Topics: ncm2, neovim, ncm2-plugin, vim, completion
Last push: 2025-06-07T09:03:37+00:00

## Health v2 (maintenance only)
Score: 44/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 25, release rhythm 35, longevity 100
- inputs: {"age_days": 3012, "days_push": 452, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1334, forks 41 (observed 2026-08-28T04:04:24.827121+00:00)

## What it is
NCM2 is a slim, fast, and hackable asynchronous autocompletion framework for Neovim, written in Python with a vimscript-friendly API. It supports per-context completion across embedded languages, snippet expansion, and integration with language server protocol sources via a plugin ecosystem.

## Use cases
- autocomplete code in Neovim
- get completion inside HTML style and script tags
- integrate language server completions into Neovim
- expand function parameters with snippets while typing
- build custom completion sources for Neovim

## When to choose
- you use Neovim and want a lightweight, hackable async completion framework
- you need context-aware completion across mixed-language files
- you want to compose completion from multiple pluggable sources

## When to avoid
- you use plain Vim rather than Neovim
- you prefer a batteries-included completion engine like nvim-cmp or coc.nvim
- you need a framework under heavy active development

## Facets
- artifact type: plugin
- maturity: maintenance
- function: editor, developer-tools
- domain: text-editors, developer-tools
- platform: editor-plugin, cross-platform
- tags: neovim, vim-plugin, autocompletion, lsp-integration, async-completion

## Member repositories
- ncm2/ncm2 (main) score 44

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:24.827121+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:44:34.222098+00:00, confidence not recorded.
  - readme: https://github.com/ncm2/ncm2 (fetched 2026-08-28T04:04:24.827121+00:00, sha e954171488dc)
- Data as of 2026-08-30T08:39:29.467469+00:00.