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Jaayden Halko
70c0ffcfb5
closes CODAGT-467 ## Problem In the agent chat timeline, wide tool-preview code blocks did not wrap **and** had no usable horizontal scroll. Long lines were clipped and unreachable for mouse users. Root cause: file/code/JSON previews (`read_file`, generic & MCP tool input/output) and markdown fenced code blocks render through `@pierre/diffs`, whose `[data-code]` grid grows to its content width (`align-self: flex-start`). The wrapping `ScrollArea` only rendered a **vertical** scrollbar, so although the viewport was horizontally scrollable, there was no scrollbar affordance and the overflow was clipped. ## Fix Render a horizontal scrollbar on these previews via `ScrollArea orientation="both"`, exposing the already-scrollable viewport with a visible 6px bar (consistent with the existing hover scrollbars). For markdown, let `[data-code]` size to its content so the outer `ScrollArea` owns the scroll. Shell/log output (`execute`, `process_output`) and diffs (`write_file`, `edit_files`) intentionally keep **wrapping**. | Preview type | Behavior | | --- | --- | | `read_file`, generic/MCP input & output, markdown fenced code | horizontal **scroll** (new) | | `execute`, `process_output` (shell/logs) | wrap (unchanged) | | `write_file`, `edit_files` (diffs) | wrap (unchanged) | ## Changes - `ScrollArea`: add `horizontalScrollBarClassName` to size the horizontal bar independently of the vertical bar (avoids a `twMerge` width/height conflict). - `ReadFileTool`, generic `ToolFileViewer` (`Tool.tsx`): `orientation="both"` + thin horizontal bar. - `Response.tsx`: wrap fenced code in a both-axis `ScrollArea`; let `[data-code]` size to content. - Long-line regression stories for the file viewer, generic tool, and markdown. - Change scrollbar color to accessible contrast ratio - Increase hit area for scroll bars to 24px which is minimim for wcag 2.2 accessibility requirements <details> <summary>Implementation notes & decisions</summary> - The `@pierre/diffs` `File` viewer only supports `overflow: "scroll" | "wrap"`. Its `[data-code]` element is a grid with `overflow: scroll clip` that grows to content width instead of scrolling, so the outer container must provide the scroll affordance. - Chosen approach: surface the **outer** `ScrollArea`'s horizontal scrollbar (the viewport was already scrollable) rather than fighting the library's internal per-block scroll. This yields a single, unified horizontal scrollbar and guarantees the timeline never exceeds the viewport (the `ScrollArea` root is `overflow: hidden`). - Scroll vs wrap was chosen per content type: code/JSON/file structure benefits from scrolling (wrapping breaks indentation and line-number alignment), while shell/log output keeps wrapping. Precedent for visible horizontal scrollbars already exists in `GitPanel`/`TaskApps`. </details> --- _Generated by Coder Agents on behalf of @jaaydenh._
Coder is a self-hosted platform for cloud development environments and AI coding agents. Workspaces are defined with Terraform, connected through a secure Wireguard® tunnel, and automatically shut down when not used. Coder Agents runs a native AI coding agent whose loop executes in the control plane on your infrastructure, with no API keys in workspaces.
- 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
- Delegate coding work to AI agents on your infrastructure
- Bring any model (Anthropic, OpenAI, Google, Bedrock, self-hosted)
- No LLM credentials in workspaces, user identity on every action
- Centralized model governance, cost tracking, and audit logging
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 the
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. See the install guides for a complete tutorial.
Documentation
Browse the documentation or visit a specific section below:
- Workspaces: Workspaces contain the IDEs, dependencies, and configuration information needed for software development
- Templates: Templates are written in Terraform and describe the infrastructure for workspaces
- Coder Agents: Delegate coding work to AI agents running on your self-hosted infrastructure
- Administration: Learn how to operate Coder
- Premium: Learn about paid features built for large teams
- IDEs: Connect your existing editor to a workspace
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
New integrations are always in progress. Open an issue to request one. Contributions are welcome in any official or community repository.
Official
- Coder Registry: Templates, modules, and integrations for common development environments
- VS Code Extension: Open any Coder workspace in VS Code with a single click
- JetBrains Toolbox Plugin: Open any Coder workspace from JetBrains Toolbox with a single click
- JetBrains Gateway Plugin: Open any Coder workspace in JetBrains Gateway with a single click
- Dev Containers: Build development environments using
devcontainer.jsonon Docker, Kubernetes, and OpenShift - Kubernetes Log Stream: Stream Kubernetes Pod events to the Coder startup logs
- Self-Hosted VS Code Extension Marketplace: A private extension marketplace that works in restricted or airgapped networks integrating with code-server.
- GitHub Actions: An action to set up the Coder CLI in GitHub workflows
Community
- Community Templates: Community-contributed workspace templates in the Coder Registry
- Community Modules: Community-contributed modules to extend Coder templates
- Provision Coder with Terraform: Provision Coder on Google GKE, Azure AKS, AWS EKS, DigitalOcean DOKS, IBMCloud K8s, OVHCloud K8s, and Scaleway K8s Kapsule with Terraform
- Coder Template GitHub Action: A GitHub Action that updates Coder templates
- Discord: Chat with the community and provide feedback on in-progress features
Contributing
New contributors are always welcome. If you are new to the Coder codebase, see the contribution guide to get started.
Hiring
Apply on the careers page if you are interested in joining the team.