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Modules

Skill coder/skills/skills/modules

Add a Coder module from registry.coder.com/modules to an existing Coder template, or update one that is already there. Use for requests like "add the Cursor IDE to my template", "give workspaces JetBrains access", "set up code-server", "wire in dotfiles", "install Claude Code in this template", or "pin module versions". Do not use for installing or upgrading Coder itself (use the setup skill), authoring a brand-new template from scratch (use the templates skill), or publishing a custom module to the registry.From its SKILL.md

Install
npx -y skills add coder/skills --skill modules

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

  • 12 stars12 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

SKILL.md

5.3 KB, as published. Nobody here has run it

Modules

Add or update Coder modules inside an existing Coder template. Modules are Terraform snippets published at registry.coder.com that extend a workspace with IDEs, AI agents, secrets, login flows, cloud regions, and other tools.

Source of Truth

Read current upstream docs before applying anything topic-specific:

This skill keeps only the integration workflow, user interaction rules, and a few module-specific gotchas.

User Interaction

The user wants a working module integration, not a Terraform lesson.

  • Confirm which template you are editing when the user has more than one.
  • Show the proposed snippet before writing it. Ask for one yes/no.
  • Never bump a module version silently. Call out version changes.
  • Do not lecture the user on Coder concepts unless they ask.

Workflow

1. Identify the module

Search for what the user described. Try these in order and stop at the first hit:

  1. The registry MCP server at https://registry.coder.com/mcp with the search_modules tool.
  2. The website at https://registry.coder.com/modules.
  3. find registry/coder/modules -maxdepth 1 -type d against a local clone of coder/registry.

If the request is ambiguous, list two or three matching options with one-line descriptions and ask the user to pick one.

2. Locate the target template

Coder modules go inside a Coder template, which is Terraform code on disk. Confirm:

  • A directory with main.tf.
  • A coder_agent resource. Most modules need an agent_id.
  • A data "coder_workspace" "me" data source. Most modules gate on data.coder_workspace.me.start_count.

If no template directory exists, stop and offer the templates skill.

3. Read the module page

Fetch the canonical snippet:

  • From the module's README on registry.coder.com.
  • Or from registry/coder/modules/<name>/README.md in a local clone of coder/registry.

Always pin the version shown on the page. Never use latest. Never fabricate a version that is not listed.

4. Insert the module

Add the snippet to main.tf. Common rules:

  • Set agent_id to the existing coder_agent resource. Templates usually have exactly one.
  • Keep count = data.coder_workspace.me.start_count for modules that should only run while the workspace is started.
  • Match the surrounding indentation and quoting style.
  • Modules with extra inputs (JetBrains IDE selection, Vault auth, JFrog instance URL, MCP config) take additional arguments. Read the module README's Examples section before guessing.

5. Validate

In the template directory:

terraform init
terraform fmt
terraform validate

terraform fmt may reformat unrelated parts of the file the user has not touched. If that happens, ask before committing.

6. Push

If the user wants the change live on a Coder deployment:

coder templates push "$TEMPLATE_NAME" -d "$TEMPLATE_DIR" --yes
coder templates versions list "$TEMPLATE_NAME"

The versions list output confirms the new version is registered. If the user wants the new version to become active automatically, add --activate to push; otherwise leave the existing active version alone.

Common Modules

Curated shortlist of the most-requested categories. Full catalogue at https://registry.coder.com/modules.

  • IDEs: cursor, jetbrains, code-server, vscode-desktop, vscode-web, windsurf, zed, kiro.
  • AI agents: claude-code, aider, goose, amazon-q, agentapi.
  • Dev environment: dotfiles, git-clone, git-config, personalize, coder-login.
  • Secrets: hcp-vault-secrets, vault-cli, vault-github, vault-jwt, vault-token.
  • Apps: filebrowser, jupyterlab, jupyter-notebook, rstudio-server, kasmvnc.
  • Cloud regions: aws-region, azure-region, gcp-region, fly-region.

Safeguards

  • Do not add a module to a template that has no coder_agent. The module will not function and the workspace will silently miss the integration.
  • Do not add a module that needs admin-level configuration (Vault backend, JFrog instance, external auth providers) without confirming the deployment has that side configured.
  • Do not run coder templates push without telling the user which template version they will get.
  • Do not edit main.tf if the user has uncommitted changes; offer to stash or commit first.
  • Do not invent module names or versions. If you cannot find the module on registry.coder.com, say so.

Bundled Resources

No per-module recipes ship with this skill. Defer to each module's README on registry.coder.com and to upstream Coder docs.

Keep looking

Skills are one crate of 628,971. Ordering is by how many stacks a row turns up in, so the top of any crate is what has actually been picked rather than what has the most stars.