Please analyze this codebase and create a CLAUDE.md file, which will be given to future instances of Claude Code to operate in this repository.
What to add: 1. Commands that will be commonly used, such as how to build, lint, and run tests. Include the necessary commands to develop in this codebase, such as how to run a single test. 2. High-level code architecture and structure so that future instances can be productive more quickly. Focus on the "big picture" architecture that requires reading multiple files to understand.
Usage notes: - If there's already a CLAUDE.md, suggest improvements to it. - When you make the initial CLAUDE.md, do not repeat yourself and do not include obvious instructions like "Provide helpful error messages to users", "Write unit tests for all new utilities", "Never include sensitive information (API keys, tokens) in code or commits". - Avoid listing every component or file structure that can be easily discovered. - Don't include generic development practices. - If there are Cursor rules (in .cursor/rules/ or .cursorrules) or Copilot rules (in .github/copilot-instructions.md), make sure to include the important parts. - If there is a README.md, make sure to include the important parts. - Do not make up information such as "Common Development Tasks", "Tips for Development", "Support and Documentation" unless this is expressly included in other files that you read. - Be sure to prefix the file with the following text:
# CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
/Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/include/gleeunit@internal@gleam_panic_Literal.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/include/gleeunit@internal@gleam_panic_AssertedExpression.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/include/gleeunit@internal@gleam_panic_OtherExpression.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/include/gleeunit@internal@gleam_panic_Assert.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/include/gleeunit@internal@gleam_panic_LetAssert.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/include/gleeunit@internal@gleam_panic_Expression.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/include/gleeunit@internal@gleam_panic_BinaryOperator.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/include/gleeunit@internal@reporting_State.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/include/gleeunit@internal@gleam_panic_FunctionCall.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/include/gleeunit@internal@gleam_panic_GleamPanic.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/src/gleeunit@internal@reporting.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/src/gleeunit@should.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/src/gleeunit@internal@gleam_panic.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/src/gleeunit.app.src /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/src/gleeunit.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/include/gleam@dynamic@decode_Decoder.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/include/gleam@uri_Uri.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/include/gleam@dynamic@decode_DecodeError.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/include/gleam@set_Set.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@list.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@float.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@io.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@bytes_tree.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@dynamic.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@bool.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@bit_array.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@option.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@result.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@pair.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@order.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@string_tree.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@dynamic@decode.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@function.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@int.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@uri.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam_stdlib.app.src /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@set.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@string.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/src/gleam@dict.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/include/gleam@otp@actor_Builder.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/include/gleam@otp@static_supervisor_Builder.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/include/gleam@otp@factory_supervisor_NamedSupervisor.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/include/gleam@otp@actor_Started.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/include/gleam@otp@factory_supervisor_Builder.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/include/gleam@otp@actor_Initialised.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/include/gleam@otp@supervision_Worker.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/include/gleam@otp@factory_supervisor_Supervisor.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/include/gleam@otp@actor_Continue.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/include/gleam@otp@static_supervisor_Supervisor.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/include/gleam@otp@supervision_ChildSpecification.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/include/gleam@otp@system_StatusInfo.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/src/gleam@otp@system.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/src/gleam@otp@static_supervisor.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/src/gleam@otp@actor.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/src/gleam@otp@supervision.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/src/gleam@otp@factory_supervisor.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/src/gleam_otp.app.src /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/src/gleam@otp@internal@result2.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/src/gleam@otp@port.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/include/gleam@erlang@process_ProcessDown.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/include/gleam@erlang@application_Failover.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/include/gleam@erlang@application_Takeover.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/include/gleam@erlang@process_Subject.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/include/gleam@erlang@process_PortDown.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/include/gleam@erlang@process_Cancelled.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/include/gleam@erlang@process_Abnormal.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/include/gleam@erlang@process_ExitMessage.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/include/gleam@erlang@process_NamedSubject.hrl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/src/gleam@erlang@port.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/src/gleam@erlang@charlist.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/src/gleam@erlang@node.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/src/gleam@erlang@atom.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/src/gleam@erlang@process.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/src/gleam_erlang.app.src /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/src/gleam@erlang@application.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/src/gleam@erlang@reference.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/LICENSE /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/LICENCE /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/LICENCE /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/LICENCE /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/src/gleam/otp/system.gleam /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/src/gleam/otp/port.gleam /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/src/gleam/erlang/application.gleam /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/src/gleam/erlang/reference.gleam /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/src/gleam/erlang/port.gleam /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/src/gleam/erlang/charlist.gleam /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/src/gleam_erlang_ffi.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/README.md /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/src/gleeunit/internal/gleam_panic.gleam /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/src/gleeunit/internal/gleeunit_gleam_panic_ffi.erl /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/src/gleam/erlang/node.gleam /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/README.md /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/README.md /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/src/gleam/erlang/atom.gleam /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/gleam.toml /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/src/gleam/erlang/process.gleam /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/src/gleam/otp/actor.gleam /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/gleam.toml /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/README.md /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/src/gleam/otp/factory_supervisor.gleam (Results are truncated. Consider using a more specific path or pattern.)
/Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/README.md /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/README.md /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/README.md /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_erlang/gleam.toml /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/gleam.toml /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_otp/README.md /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleeunit/gleam.toml /Users/apanda/code/agent-spec-code/otp_test/build/packages/gleam_stdlib/gleam.toml /Users/apanda/code/agent-spec-code/otp_test/README.md /Users/apanda/code/agent-spec-code/otp_test/build/packages/packages.toml /Users/apanda/code/agent-spec-code/otp_test/gleam.toml /Users/apanda/code/agent-spec-code/otp_test/manifest.toml
{
"file_path": "/Users/apanda/code/agent-spec-code/otp_test/test/otp_test_test.gleam"
} 1→name = "otp_test"
2→version = "1.0.0"
3→
4→# Fill out these fields if you intend to generate HTML documentation or publish
5→# your project to the Hex package manager.
6→#
7→# description = ""
8→# licences = ["Apache-2.0"]
9→# repository = { type = "github", user = "", repo = "" }
10→# links = [{ title = "Website", href = "" }]
11→#
12→# For a full reference of all the available options, you can have a look at
13→# https://gleam.run/writing-gleam/gleam-toml/.
14→
15→[dependencies]
16→gleam_stdlib = ">= 0.44.0 and < 2.0.0"
17→gleam_otp = ">= 1.2.0 and < 2.0.0"
18→
19→[dev-dependencies]
20→gleeunit = ">= 1.0.0 and < 2.0.0"
21→
<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>
1→# otp_test
2→
3→[](https://hex.pm/packages/otp_test)
4→[](https://hexdocs.pm/otp_test/)
5→
6→```sh
7→gleam add otp_test@1
8→```
9→```gleam
10→import otp_test
11→
12→pub fn main() -> Nil {
13→ // TODO: An example of the project in use
14→}
15→```
16→
17→Further documentation can be found at <https://hexdocs.pm/otp_test>.
18→
19→## Development
20→
21→```sh
22→gleam run # Run the project
23→gleam test # Run the tests
24→```
25→
<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>
1→import gleam/io
2→
3→pub fn main() -> Nil {
4→ io.println("Hello from otp_test!")
5→}
6→
<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>
1→import gleeunit
2→
3→pub fn main() -> Nil {
4→ gleeunit.main()
5→}
6→
7→// gleeunit test functions end in `_test`
8→pub fn hello_world_test() {
9→ let name = "Joe"
10→ let greeting = "Hello, " <> name <> "!"
11→
12→ assert greeting == "Hello, Joe!"
13→}
14→
<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>
1→# This file was generated by Gleam
2→# You typically do not need to edit this file
3→
4→packages = [
5→ { name = "gleam_erlang", version = "1.3.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleam_erlang", source = "hex", outer_checksum = "1124AD3AA21143E5AF0FC5CF3D9529F6DB8CA03E43A55711B60B6B7B3874375C" },
6→ { name = "gleam_otp", version = "1.2.0", build_tools = ["gleam"], requirements = ["gleam_erlang", "gleam_stdlib"], otp_app = "gleam_otp", source = "hex", outer_checksum = "BA6A294E295E428EC1562DC1C11EA7530DCB981E8359134BEABC8493B7B2258E" },
7→ { name = "gleam_stdlib", version = "0.70.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "86949BF5D1F0E4AC0AB5B06F235D8A5CC11A2DFC33BF22F752156ED61CA7D0FF" },
8→ { name = "gleeunit", version = "1.9.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleeunit", source = "hex", outer_checksum = "DA9553CE58B67924B3C631F96FE3370C49EB6D6DC6B384EC4862CC4AAA718F3C" },
9→]
10→
11→[requirements]
12→gleam_otp = { version = ">= 1.2.0 and < 2.0.0" }
13→gleam_stdlib = { version = ">= 0.44.0 and < 2.0.0" }
14→gleeunit = { version = ">= 1.0.0 and < 2.0.0" }
15→
<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>
This is a straightforward Gleam project with OTP support. Let me create the CLAUDE.md file.
# CLAUDE.md This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository. ## Build Commands ```sh gleam build # Compile the project gleam run # Run the project gleam test # Run all tests gleam format # Format code gleam format --check # Check formatting without modifying ``` ## Project Overview This is a Gleam project targeting the Erlang/OTP runtime. The project uses: - **gleam_stdlib** - Standard library - **gleam_otp** - OTP actor system, supervisors, and process management - **gleeunit** - Testing framework (dev dependency) ## Code Structure - `src/otp_test.gleam` - Main module with application entry point - `test/otp_test_test.gleam` - Tests (functions ending in `_test` are automatically discovered by gleeunit) ## Testing Test functions must end with `_test` suffix to be discovered by gleeunit. Tests use Gleam's `assert` for assertions.
The user doesn't want to proceed with this tool use. The tool use was rejected (eg. if it was a file edit, the new_string was NOT written to the file). STOP what you are doing and wait for the user to tell you how to proceed.
The user said "yes" which means they want me to proceed with creating the CLAUDE.md file. Let me try again.
# CLAUDE.md This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository. ## Build Commands ```sh gleam build # Compile the project gleam run # Run the project gleam test # Run all tests gleam format # Format code gleam format --check # Check formatting without modifying ``` ## Project Overview This is a Gleam project targeting the Erlang/OTP runtime. The project uses: - **gleam_stdlib** - Standard library - **gleam_otp** - OTP actor system, supervisors, and process management - **gleeunit** - Testing framework (dev dependency) ## Code Structure - `src/otp_test.gleam` - Main module with application entry point - `test/otp_test_test.gleam` - Tests (functions ending in `_test` are automatically discovered by gleeunit) ## Testing Test functions must end with `_test` suffix to be discovered by gleeunit. Tests use Gleam's `assert` for assertions.
Created CLAUDE.md with:
- Build/run/test commands for Gleam
- Project overview noting the Erlang/OTP target and key dependencies (gleam_stdlib, gleam_otp, gleeunit)
- Code structure pointing to main source and test files
- Testing convention (functions must end with _test suffix)