telplin 0.13.0
See the version list below for details.
dotnet tool install --global telplin --version 0.13.0
dotnet new tool-manifest
dotnet tool install --local telplin --version 0.13.0
#tool dotnet:?package=telplin&version=0.13.0
nuke :add-package telplin --version 0.13.0
Telplin

Telplin helps F# users to generate matching signature files for implementation files.
Usage
dotnet tool install -g telplin
telplin src/App/App.fsproj --files App/Api.fs --only-used
This writes Api.fsi next to Api.fs, lists it in the project, and keeps only what other files of the project use: a let binding nothing else calls is left out, which makes it private. The project is type checked before and after, so a signature that does not match is never written.
Leave out --only-used to get everything the file exposes, and --files to do the whole project. Run telplin --help for the other flags.
Checkout our documentation for more information.
Local development
Run online tool
dotnet fsi build.fsx -- -p Watch
Format code
dotnet fantomas src tests docs tool
| Product | Versions Compatible and additional computed target framework versions. |
|---|---|
| .NET | net10.0 is compatible. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed. |
This package has no dependencies.
| Version | Downloads | Last Updated |
|---|---|---|
| 0.17.0 | 89 | 8/30/2026 |
| 0.16.0 | 81 | 8/30/2026 |
| 0.15.0 | 85 | 8/30/2026 |
| 0.14.0 | 81 | 8/30/2026 |
| 0.13.0 | 80 | 8/30/2026 |
| 0.12.0 | 82 | 8/30/2026 |
| 0.11.0 | 207 | 4/10/2026 |
| 0.10.0 | 2,544 | 2/10/2025 |
| 0.9.6 | 26,496 | 2/22/2024 |
| 0.9.5 | 335 | 1/31/2024 |
| 0.9.4 | 366 | 1/29/2024 |
| 0.9.3 | 394 | 12/12/2023 |
| 0.9.2 | 324 | 12/1/2023 |
| 0.9.1 | 279 | 11/22/2023 |
| 0.9.0 | 326 | 11/22/2023 |
| 0.8.3 | 357 | 6/28/2023 |
| 0.8.2 | 326 | 6/14/2023 |
| 0.8.1 | 354 | 6/13/2023 |
| 0.8.0 | 316 | 6/12/2023 |
### Added
- `--only-used` leaves out let bindings that no other file of the project uses. Types, members and bindings with an attribute are kept. Only the project is looked at, so this is for files internal to a project. [#371](https://github.com/nojaf/telplin/pull/371)
- The project is type checked before a run, and again with the new signatures in place before anything is written. `--no-verify` skips the second check, `--force` writes despite it.
- Signature files are listed in the project file, directly before their implementation file. `--no-project` opts out.
- The `private` keyword is removed from let bindings the signature leaves out. `--keep-private` opts out.
- `--files` accepts a path relative to the project, such as `Api.fs` or `App/Api.fs`, from any working directory.
- The input can be a folder that holds exactly one project file.
### Changed
- A project that does not compile is refused with its diagnostics.
- The generated `AssemblyInfo.fs` and `AssemblyAttributes.fs` no longer get a signature file.