Kyle Carberry 742694eb20 fix: filter empty text/reasoning parts before sending to LLM (#23284)
## Problem

Anthropic rejects requests containing empty text content blocks with:

```
messages: text content blocks must be non-empty
```

Empty text parts (`""` or whitespace-only like `" "`) get persisted in
the database when a stream sends `TextStart`/`TextEnd` with no
`TextDelta` in between. On the next turn, these parts are loaded from
the DB and sent to Anthropic, which rejects them.

## Fix

Filter empty/whitespace-only text and reasoning parts at the two LLM
dispatch boundaries, without modifying persistence (the raw record is
preserved):

- **`partsToMessageParts()`** in `chatprompt.go` — filters when
converting persisted DB messages to fantasy message parts for LLM calls.
This is the last gateway before the Anthropic provider creates
`TextBlockParam` objects.
- **`toResponseMessages()`** in `chatloop.go` — filters when building
in-flight conversation messages between steps within a single turn.

Note: `flushActiveState()` (the interruption path) already had this
guard — the normal `TextEnd` streaming path did not, but since we're not
changing persistence, the fix is applied at the dispatch layer.
2026-03-19 12:10:54 -04:00
2022-04-04 11:55:06 -05:00

Coder Logo Light Coder Logo Dark

Self-Hosted Cloud Development Environments

Coder Banner Light Coder Banner Dark

Quickstart | Docs | Why Coder | Premium

discord release godoc Go Report Card OpenSSF Best Practices OpenSSF Scorecard license

Coder enables organizations to set up development environments in their public or private cloud infrastructure. Cloud development environments are defined with Terraform, connected through a secure high-speed Wireguard® tunnel, and automatically shut down when not used to save on costs. Coder gives engineering teams the flexibility to use the cloud for workloads most beneficial to them.

  • Define cloud development environments in Terraform
    • EC2 VMs, Kubernetes Pods, Docker Containers, etc.
  • Automatically shutdown idle resources to save on costs
  • Onboard developers in seconds instead of days

Coder Hero Image

Quickstart

The most convenient way to try Coder is to install it on your local machine and experiment with provisioning cloud development environments using Docker (works on Linux, macOS, and Windows).

# First, install Coder
curl -L https://coder.com/install.sh | sh

# Start the Coder server (caches data in ~/.cache/coder)
coder server

# Navigate to http://localhost:3000 to create your initial user,
# create a Docker template and provision a workspace

Install

The easiest way to install Coder is to use our install script for Linux and macOS. For Windows, use the latest ..._installer.exe file from GitHub Releases.

curl -L https://coder.com/install.sh | sh

You can run the install script with --dry-run to see the commands that will be used to install without executing them. Run the install script with --help for additional flags.

See install for additional methods.

Once installed, you can start a production deployment with a single command:

# Automatically sets up an external access URL on *.try.coder.app
coder server

# Requires a PostgreSQL instance (version 13 or higher) and external access URL
coder server --postgres-url <url> --access-url <url>

Use coder --help to get a list of flags and environment variables. Use our install guides for a complete walkthrough.

Documentation

Browse our docs here or visit a specific section below:

  • Templates: Templates are written in Terraform and describe the infrastructure for workspaces
  • Workspaces: Workspaces contain the IDEs, dependencies, and configuration information needed for software development
  • IDEs: Connect your existing editor to a workspace
  • Administration: Learn how to operate Coder
  • Premium: Learn about our paid features built for large teams

Support

Feel free to open an issue if you have questions, run into bugs, or have a feature request.

Join our Discord to provide feedback on in-progress features and chat with the community using Coder!

Integrations

We are always working on new integrations. Please feel free to open an issue and ask for an integration. Contributions are welcome in any official or community repositories.

Official

Community

Contributing

We are always happy to see new contributors to Coder. If you are new to the Coder codebase, we have a guide on how to get started. We'd love to see your contributions!

Hiring

Apply here if you're interested in joining our team.

S
Description
Provision remote development environments via Terraform
Readme AGPL-3.0
918 MiB
Languages
Go 74.9%
TypeScript 23.1%
Shell 0.8%
HCL 0.3%
PLpgSQL 0.3%
Other 0.4%