# josharian/impl

impl generates method stubs for implementing an interface.

Repository: https://github.com/josharian/impl
Canonical: https://ross.abutalabs.com/products/impl
Language: Go
License: MIT
License Family: permissive
Last push: 2025-12-10T00:33:26+00:00

## Health v2 (maintenance only)
Score: 57/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 56, release rhythm 35, longevity 100
- inputs: {"age_days": 4429, "days_push": 267, "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 1108, forks 94 (observed 2026-08-28T04:03:37.178875+00:00)

## What it is
impl is a Go command-line tool that generates method stubs for implementing an interface, given a receiver and an interface name or package path. It integrates with editors like Vim via plugins such as vim-go.

## Use cases
- generate method stubs for a Go interface
- scaffold interface implementations in Go
- quickly implement io.ReadWriteCloser methods
- generate stubs from a fully qualified interface path
- speed up writing Go interface implementations in Vim

## When to choose
- you write Go and frequently implement interfaces
- you want fast, editor-integrated stub generation
- you prefer a small single-purpose CLI

## When to avoid
- you need full IDE refactoring features
- you work in languages other than Go

## Facets
- artifact type: cli-tool
- maturity: stable
- function: developer-tools, cli
- domain: developer-tools, programming-languages
- platform: cli, cross-platform, go
- tags: go, code-generation, interface-stubs, editor-integration, vim, command-line

## Member repositories
- josharian/impl (main) score 57

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:37.178875+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 2026-08-30T06:43:47.819218+00:00, confidence not recorded.
  - readme: https://github.com/josharian/impl (fetched 2026-08-28T04:03:37.178875+00:00, sha 7d8b6d19c54b)
- Data as of 2026-08-30T08:39:29.467469+00:00.