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Kyle Carberry
210261b143
Foundation for the Workspace Context Sources RFC (phase 3). The agent push (#25983) and coderd snapshot storage (#26145) already persist per-agent context snapshots; this PR lands the **chat-side storage** plus the **`agentapi` push trigger** that a follow-up will use to read them. It does **not** touch `chatd` and changes no behavior — nothing wires an implementation yet. ## What changed - Adds four nullable columns to `chats` — `context_aggregate_hash`, `context_dirty_since`, `context_dirty_resources`, and `context_error` — and rebuilds the `chats_expanded` view. - Adds three queries — `SetChatContextSnapshot`, `HydrateAgentChatsContext`, `MarkChatsContextDirtyByAgent` — with `dbauthz` wrappers and `audit` entries. They are store-interface methods covered by a Postgres test (`TestChatContextHydration`). - Adds the `agentapi.ContextDirtyMarker` interface and invokes it inside the `PushContextState` transaction, publishing collected events only after commit. ## Intentionally inert There are **no production callers** of the three queries and **no implementation** wired for `ContextDirtyMarker`, so the push trigger is dormant. This is deliberate: the PR is the durable storage/query foundation only. The actual integration — the `chatd` implementation that hydrates/dirties chats and backs a refresh endpoint, consuming the pinned context in prompt building, the rich SDK types + UI, and retiring the live per-turn pull — lands as a single follow-up PR. Splitting this way keeps the schema/query layer reviewable on its own and keeps the integration whole in one place. Refs #25983, #26145. <details> <summary>Decision log</summary> - **Columns over a side table.** The four `chats` columns are the durable model (accepting the one-time `chats_expanded` view/CTE churn). `last_injected_context` is deliberately left untouched — it is load-bearing for the live per-turn context pull. - **Keep `agentapi`, drop `chatd`.** The earlier revision wired the hydrate/dirty implementation through `chatd` and added a `PUT /chats/{chat}/context` refresh endpoint. Those were removed so this PR is pure foundation; `agentapi` defines the trigger + interface (it does not import `chatd`), and the `chatd` implementation arrives with the full integration. - **No new experiment flag.** The columns are dark and unread by prompt building. - **Authz.** The new query wrappers authorize chat updates under the chat RBAC object / `ResourceChat`, consistent with the existing system chat mutators. </details> --- 🤖 Generated by Coder Agents on behalf of @kylecarbs.
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.