refactor(registry/coder/modules/coder-utils)!: derive names from module_directory

[matifali]

Summary

Derives coder-utils script names from module_directory instead of a separate agent_name input. The module_directory already encodes both the namespace and the module name, so carrying both is redundant and error-prone. Callers like claude-code no longer need to pass agent_name.

Scripts this module materializes lose the ${agent_name}-utils- prefix because module_directory already namespaces them per-caller.

We will address multiple instances of coder-utils per caller in a future iteration if needed.

Versioning Note

Previous tags (v1.0.0 through v1.3.0) have been deleted because no published module ever consumed them — the module was effectively unreleased. This PR ships the first real public version as v0.0.1, treating it as a fresh start rather than a breaking bump from a version that was never in production use.

Changes

• Remove agent_name variable.
• Derive caller_name = "${namespace}-${module_name}" from module_directory.
• Validate module_directory matches $HOME/.coder-modules/<namespace>/<module-name>.
• Rename script files on disk from ${agent_name}-utils-<phase>.sh to plain <phase>.sh.
• Add a TS test for the module_directory validation.
• Ship as v0.0.1 (first published version; all prior tags removed).

Breaking Changes

Before	After
agent_name = "myagent"	removed (derived from module_directory)
module_directory = ".my-module"	module_directory = "$HOME/.coder-modules/<ns>/<name>" (validated)
Script files ${agent_name}-utils-install.sh	install.sh
Script sync names ${agent_name}-install_script	${namespace}-${module_name}-install_script

No callers were depending on the old format (prior tags were unpublished).

Validation

• terraform fmt -recursive clean
• terraform validate clean
• terraform test → 17/17 pass
• bun test registry/coder/modules/coder-utils → 5/5 pass
• prettier --check clean

Consumer

#861 (claude-code) consumes this and is currently pinned to the commit SHA until this merges and ships as v0.0.1.

🤖 This PR was created with the help of Coder Agents, and needs a human review. 🧑‍💻

[35C4n0r]

@matifali If we merge this:

• Users won't have the freedom to write outside of the defined regex, even when they are building modules for their personal use.
• we need to make sure to mention we cannot have 2 instances of the coder-utils module write to same module_directory, even when both of them are instantiated in the same parent module, they'll need to choose 2 different paths.
• Every parent module that will use this module, will also need to implement that regex requirement, for example we'll need to copy the validation block to claude-code, gemini, copilot, codex etc., imo it wouldn't be a good UX for users considering we allow them to specify the module directory but enforce path restrictions.

[matifali]

Every parent module that will use this module, will also need to implement that regex requirement, for example we'll need to copy the validation block to claude-code, gemini, copilot, codex etc., imo it wouldn't be a good UX for users considering we allow them to specify the module directory but enforce path restrictions.

This is not required. terraform will fail even if the nested validation fails

Users won't have the freedom to write outside of the defined regex, even when they are building modules for their personal use.

That is fine. Being restrictive is better than permissive. We can relax it later if needed.

we need to make sure to mention we cannot have 2 instances of the coder-utils module write to same module_directory, even when both of them are instantiated in the same parent module, they'll need to choose 2 different paths.

I think it is ok. We are the only consumer of this module today. We can add support for multiple instances when needed.