# eyre-rs/eyre

A trait object based error handling type for easy idiomatic error handling and reporting in Rust applications

Repository: https://github.com/eyre-rs/eyre
Canonical: https://ross.abutalabs.com/products/eyre
Language: Rust
License: Apache-2.0
License Family: permissive
Last push: 2026-08-11T19:48:05+00:00

## Health v2 (maintenance only)
Score: 76/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 97, release rhythm 35, longevity 100
- inputs: {"age_days": 2378, "days_push": 22, "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 1769, forks 102 (observed 2026-08-28T04:05:33.767693+00:00)

## What it is
eyre is a Rust library providing eyre::Report, a trait-object based error handling type for idiomatic error handling and reporting in applications. It is a fork of anyhow that supports customizable error report handlers via companion crates like color-eyre.

## Use cases
- handle errors idiomatically in Rust applications
- capture backtraces and span traces with error reports
- customize how error reports are formatted and printed
- attach help messages and suggestions to errors
- replace anyhow with a more flexible error reporting type

## When to choose
- you are building a Rust application (not a library with external users) and want ergonomic error handling
- you want rich, customizable error reports with backtraces and span traces
- you like anyhow's ergonomics but need pluggable report handlers

## When to avoid
- you are writing a library whose public API should expose concrete error types
- you need a minimal dependency with no error reporting features
- you require API stability guarantees across major version bumps

## Facets
- artifact type: library
- maturity: stable
- function: error-handling, developer-tools
- domain: developer-tools, programming-languages
- platform: rust, cross-platform
- tags: error-reporting, anyhow-fork, trait-object-errors, report-handlers

## Member repositories
- eyre-rs/eyre (main) score 76

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:33.767693+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 2026-08-30T03:26:05.734903+00:00, confidence not recorded.
  - readme: https://github.com/eyre-rs/eyre (fetched 2026-08-28T04:05:33.767693+00:00, sha 3dee42795079)
  - registry_crates: https://crates.io/api/v1/crates/eyre (fetched 2026-08-29T11:04:25.333323+00:00, sha 7d37eeba3485)
- Data as of 2026-08-30T08:39:29.467469+00:00.