# rcoh/angle-grinder

Slice and dice logs on the command line

Repository: https://github.com/rcoh/angle-grinder
Canonical: https://ross.abutalabs.com/products/angle-grinder
Language: Rust
License: MIT
License Family: permissive
Topics: logging, analytics, rust, cli-app
Last push: 2026-02-05T19:11:45+00:00

## Health v2 (maintenance only)
Score: 52/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 66, release rhythm 8, longevity 100
- inputs: {"age_days": 3108, "days_push": 209, "days_rel": 522, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3752, forks 75 (observed 2026-08-28T04:08:17.712755+00:00)

## What it is
Angle-grinder (agrind) is a Rust command-line tool for parsing, filtering, and aggregating log data with a live-updating terminal UI. It provides a small query language with parsers (JSON, logfmt, split) and aggregators (sum, average, percentile, count, sort) for analytics on log streams without a full observability platform.

## Use cases
- parse and aggregate JSON logs from the command line
- compute percentiles and averages over log streams
- live-updating terminal analytics on log files
- query structured logs without kibana or splunk
- count distinct values in log data
- filter and group log lines by fields

## When to choose
- you need fast log analytics (millions of rows/sec) directly in the terminal
- your logs aren't in a centralized system like splunk or honeycomb
- you want a lightweight query language for parsing and aggregating logs

## When to avoid
- you need long-term storage, dashboards, or alerting for logs
- you already have a full observability platform like kibana or sumologic
- you need a GUI-based log exploration tool

## Facets
- artifact type: cli-tool
- maturity: active
- function: logging, analytics, parser, data-visualization, cli
- domain: developer-tools, analytics, monitoring
- platform: windows, bsd, cli, cross-platform
- tags: log-analysis, terminal-ui, rust, aggregation, structured-logs, live-updating, command-line, linux, macos

## Member repositories
- rcoh/angle-grinder (main) score 52

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:17.712755+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 2026-08-29T18:28:58.822724+00:00, confidence not recorded.
  - readme: https://github.com/rcoh/angle-grinder (fetched 2026-08-28T04:08:17.712755+00:00, sha e5dc3502aa26)
- Data as of 2026-08-30T08:39:29.467469+00:00.