errdown

Pre-release (alpha). API and output may change.

Cloudflare-compatible structured errors (RFC 9457 Problem Details) for every HTTP error your agent hits: nginx, AWS, Vercel, framework defaults, JSON/XML API errors, bot challenges. Zero dependencies, pure function, never throws. Independent project, not affiliated with Cloudflare.

import httpx
from errdown import normalize, to_markdown, decide, agent_accept_header

res = httpx.get(url, headers={"accept": agent_accept_header()})
if res.is_error:
    problem = normalize(res.status_code, res.headers, res.content, url=url)
    if problem:
        to_markdown(problem)  # Cloudflare-format Markdown for the model
        decide(problem)       # {"action": "retry", "after_seconds": 5} | escalate | fail

Spec and conformance fixtures: https://github.com/ArtZab0/errdown

License: Apache-2.0. Spec and fixtures: CC0 (captured third-party responses excepted).

Metadata

Release files for errdown 0.1.0a2

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Source distribution (sdist)

Source distribution for errdown 0.1.0a2
File	Size	Uploaded	Provenance	Actions
errdown-0.1.0a2.tar.gz	19.8 kB	Nov 10, 2026	Without provenance	Details for errdown-0.1.0a2.tar.gz

Built distribution (wheel)

Table of built distributions (wheels) for errdown 0.1.0a2
File	Interpreter	ABI	Platform	Actions Reset
errdown-0.1.0a2-py3-none-any.whl 22.1 kB Nov 10, 2026 Without provenance	Python 3	none	any	Details for errdown-0.1.0a2-py3-none-any.whl

Total release size: 41.9 kB

Release files / errdown-0.1.0a2.tar.gz

Download URL	errdown-0.1.0a2.tar.gz
Size	19.8 kB
Tags	Source
SHA-256 checksum How to use checksums	`71265fbaf57a9c703aac212463d252b5e0add95723e29ed0bda414616fd9ab29`
BLAKE2b-256 checksum How to use checksums	`7489a6a521c00173bf8cd8bdb61190cbad2d9eb9a48aaaf989bc74035f4c6991`
Upload date	Nov 10, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`uv/0.11.23 {"installer":{"name":"uv","version":"0.11.23","subcommand":["publish"]},"python":null,"implementation":{"name":null,"version":null},"distro":{"name":"Ubuntu","version":"24.04","id":"noble","libc":null},"system":{"name":null,"release":null},"cpu":null,"openssl_version":null,"setuptools_version":null,"rustc_version":null,"ci":null}`

Release files / errdown-0.1.0a2-py3-none-any.whl

Download URL	errdown-0.1.0a2-py3-none-any.whl
Size	22.1 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`dd3a8d15619240269a794960e11cdacfa09e1859a935d72e1c81392d56b808f7`
BLAKE2b-256 checksum How to use checksums	`64bc5d20b7060269e997a0749a7306df7c6701073ea9962da820424ba4c323a7`
Upload date	Nov 10, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`uv/0.11.23 {"installer":{"name":"uv","version":"0.11.23","subcommand":["publish"]},"python":null,"implementation":{"name":null,"version":null},"distro":{"name":"Ubuntu","version":"24.04","id":"noble","libc":null},"system":{"name":null,"release":null},"cpu":null,"openssl_version":null,"setuptools_version":null,"rustc_version":null,"ci":null}`

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