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 0.1.0a0

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Source distribution (sdist)

Source distribution for errdown 0.1.0a0
File	Size	Uploaded	Provenance	Actions
errdown-0.1.0a0.tar.gz	18.9 kB	Nov 10, 2026	Without provenance	Details for errdown-0.1.0a0.tar.gz

Built distribution (wheel)

Table of built distributions (wheels) for errdown 0.1.0a0
File	Interpreter	ABI	Platform	Actions Reset
errdown-0.1.0a0-py3-none-any.whl 21.2 kB Nov 10, 2026 Without provenance	Python 3	none	any	Details for errdown-0.1.0a0-py3-none-any.whl

Total release size: 40.2 kB

Release files / errdown-0.1.0a0.tar.gz

Download URL	errdown-0.1.0a0.tar.gz
Size	18.9 kB
Tags	Source
SHA-256 checksum How to use checksums	`75a36a0441b029142bdb45870098180fe258793d77888129eda1a4eaa57d315c`
BLAKE2b-256 checksum How to use checksums	`9c780a0b6e1e023a0a34e1af208ce6cdb8ee307cf327a74fa9958cfe0bdfac53`
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-0.1.0a0-py3-none-any.whl

Download URL	errdown-0.1.0a0-py3-none-any.whl
Size	21.2 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`44870c7aa99aee6262e9c6a9803b4ac496f06edfb097c6b748aff24cd5a762f8`
BLAKE2b-256 checksum How to use checksums	`090f27657ac2ecd6e0c680c6ecb39ae58f7f5c58648a9780bb1eb9c1daed90dd`
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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