# language_model: Include hosts in transport errors \(\#62990\) · gitcafe/zed

[View on GitCafe](https://git.cafe/gitcafe/zed/commit/53dbfe407328b2668d1114075ca3768dd1c2a2a5)

Repository: [gitcafe/zed](https://git.cafe/gitcafe/zed)

Visibility: public

Requested revision: 53dbfe407328b2668d1114075ca3768dd1c2a2a5

Requested commit: 53dbfe407328b2668d1114075ca3768dd1c2a2a5

Commit: 53dbfe407328b2668d1114075ca3768dd1c2a2a5

Tree: 71cfd4162b2ab1ac66be11a07b3cb4378103fd26

Author: Conrad Irwin

Committer: GitHub

## Message

```
language_model: Include hosts in transport errors (#62990)

Language model transport errors currently retain only a provider display
name after an HTTP request fails. Downstream clients therefore cannot
tell users which configured endpoint was unreachable without parsing the
source error or hard-coding provider names.

Make the request hostname a required part of
`LanguageModelCompletionError::HttpSend` and preserve it through the
Anthropic, OpenAI-compatible, OpenRouter, Vercel AI Gateway, and Zed
Cloud transports. Each transport captures the parsed hostname from the
request URI before sending it, using the configured base URL as the
defensive fallback. This supports production, development, and custom
endpoints without string matching.

Tests exercise transport failures through the real request paths and
verify hostnames for Anthropic, ChatGPT Subscription, generic
OpenAI-compatible providers, and Zed Cloud.

Testing:

- `cargo fmt --check`
- `cargo nextest run -p anthropic -p open_ai -p open_router -p
language_models_cloud -p language_models` — 209 tests passed
- `cargo check -p agent -p agent_ui --all-targets`
- `git diff --check`
- `./script/clippy -p language_model_core -p anthropic -p open_ai -p
open_router -p language_models_cloud -p language_models` — clippy
passed; the script subsequently failed in the repository-wide `cargo
shear --deny-warnings` step on 203 pre-existing target and doctest
configuration warnings

Release Notes:

- Improved language model connection errors to identify the unreachable
host.
```

## Parents

- [4c763e1563523c503282394bef9c6c08d9e10457](https://git.cafe/gitcafe/zed/commit/4c763e1563523c503282394bef9c6c08d9e10457?format=markdown)

[Source at this commit](https://git.cafe/gitcafe/zed/tree/53dbfe407328b2668d1114075ca3768dd1c2a2a5?format=markdown)