feat(lsp): add OCaml (ocamllsp) with beginner-friendly defaults - #19
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Wire ocaml-lsp-server through the native LSP API, matching the nil/clangd
pattern: after/lsp/ocamllsp.lua holds the config, after/ftplugin/ocaml.lua
enables it. The server is expected on PATH via opam (docs/adr/0001).
Beginner-friendly defaults for learning the language:
- inlay hints for let bindings and pattern variables, enabled
automatically on attach (other filetypes keep the global off default).
- extendedHover and syntaxDocumentation for richer hover; codelens left
off as it duplicates the inlay hints.
Formatting goes through Conform (ocaml = { "ocamlformat" }) on the existing
format-on-save path; ocamlformat no-ops without a .ocamlformat file.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Record the first ADR: provision OCaml tooling via opam and wire ocamllsp through the native LSP API, rejecting mason (switch-agnostic build) and Nix (poor fit for per-project switches). Update the Architecture and format-on-save sections to mention ocamllsp and ocamlformat. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This was referenced Aug 4, 2026
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What
Add OCaml language support aimed at learning the language, wired through the Neovim 0.11+ native LSP API (same shape as
nil/clangd).Changes
after/lsp/ocamllsp.lua—ocamllspconfig:cmd = { "ocamllsp" }, root markers (dune-project/dune-workspace/.git), and beginner-friendly settings:on_attach(other filetypes keep the global off default;<leader>lhstill toggles).extendedHover+syntaxDocumentation;codelensintentionally off (duplicates inlay hints).after/ftplugin/ocaml.lua—vim.lsp.enable "ocamllsp".lua/plugins/conform.lua—ocaml = { "ocamlformat" }on the existing format-on-save path (no-ops without.ocamlformat).docs/adr/0001-ocaml-lsp-via-opam.md— first ADR: opam provisioning, native API, why not mason/Nix, deferred REPL.CLAUDE.md— synced Architecture + format-on-save sections.Out of repo (do separately)
Put a
.ocamlformatat the project root to enable format-on-save.Deferred (per grilling)
Verification
bin/check(lock-faithful restore): OK..mlbuffer resolvesfiletype=ocaml, theocamllspnative config (cmd=ocamllsp, inlay settings present), andvim.lsp.enableruns without error. The server itself isn't present in CI, so it simply doesn't start — no load error.🤖 Generated with Claude Code