ocaml/ocaml-lsp

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OCaml Language Server Protocol implementation

Stars: 909
Forks: 165
Open beginner issues: 0
Indexed issues: 104
Avg merge: 11h 54m
Merged PRs (30d): 68

Dominant language: OCaml
License: No license data
Last GitHub push: Sep 12, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Beginner friendly Everything

Open All

104 open issues indexed

Wrong documentation for operators in completions (`completionItem/resolve`) Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

ocaml/ocaml-lsp#2202 · 3 comments · Opened Sep 10, 2026
multiple errors on same range: report real errors first (4.14) Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

ocaml/ocaml-lsp#2143 · 1 comment · Opened Aug 21, 2026
Diagnotics are reported using UTF8-positions regardless of the agreement Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ocaml/ocaml-lsp#2138 · Opened Aug 10, 2026
`workspace/symbol` rescans all `.cmt`/`.cmti` files on every request, causing ~13s latency in a large workspace Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

ocaml/ocaml-lsp#1622 · Opened Jul 12, 2026
Reason doc comments don't appear Open

ReasonML

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ocaml/ocaml-lsp#1589 · 1 reaction · Opened Feb 24, 2026
The `construct an expression` action seems broken Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ocaml/ocaml-lsp#1588 · 3 comments · Opened Feb 21, 2026
Symbolic link directories interfere with go-to-definition and find-all-references functionality Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

ocaml/ocaml-lsp#1582 · Opened Jan 14, 2026
Server log parameters not being sent in the oxcaml branch Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

ocaml/ocaml-lsp#1548 · 1 comment · 2 reactions · Opened Aug 7, 2025
Protect master branch Open

Difficulty 1/5 Under an hour Newbie friendliness 20/100

ocaml/ocaml-lsp#1535 · 2 reactions · Opened Jun 8, 2025
Adding field to `ocamllsp/typeEnclosing` to indicate value vs. module type Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ocaml/ocaml-lsp#1532 · Opened May 27, 2025
Enable Code Lens / Inlay-Hints in neovim? Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ocaml/ocaml-lsp#1521 · 3 comments · Opened Apr 25, 2025
RFC: Introduce versionned ocamllsp capabilities Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ocaml/ocaml-lsp#1503 · 3 comments · Opened Mar 13, 2025
Feature Request: Support configurable inlay hints similar to rust-analyzer Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

ocaml/ocaml-lsp#1460 · Opened Jan 30, 2025
ERROR while compiling ocaml-lsp-server.1.20.1-4.14 Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ocaml/ocaml-lsp#1459 · 8 comments · 2 reactions · Opened Jan 30, 2025
Search (by types and polarity) does not include location properly Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

ocaml/ocaml-lsp#1450 · Opened Jan 17, 2025
Local code extraction outputs OCaml syntax even in Reason file Open

ReasonML

Difficulty 4/5 3-5 days Newbie friendliness 38/100

ocaml/ocaml-lsp#1448 · Opened Jan 16, 2025
Implementing end-to-end testing for a custom language server Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ocaml/ocaml-lsp#1438 · 1 reaction · Opened Jan 5, 2025
Diagnostics incorrect for build directories other than `_build` Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 48/100

ocaml/ocaml-lsp#1433 · 2 comments · Opened Dec 29, 2024
Hover over deriving in mutual recursion looks weird. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ocaml/ocaml-lsp#1401 · Opened Nov 21, 2024
`dune format-dune-file` Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ocaml/ocaml-lsp#1396 · Opened Nov 18, 2024
Feature request: Better support for package dependencies config (for non-dune projects) Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

ocaml/ocaml-lsp#1385 · 3 reactions · Opened Oct 3, 2024
ocamllsp/switchImplIntf results in "Jsonrpc: json conversion failed: missing field error" Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

ocaml/ocaml-lsp#1330 · 4 comments · Opened Jul 6, 2024
Implement textDocument/diagnostic for synchronous update Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ocaml/ocaml-lsp#1327 · 3 comments · Opened Jul 4, 2024
Show specialized types on hover Open

discussion

Difficulty 5/5 Over a week Newbie friendliness 35/100

ocaml/ocaml-lsp#1322 · 3 comments · 1 reaction · Opened Jun 26, 2024
Weird behaviour of lenses in type definition Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ocaml/ocaml-lsp#1313 · 2 comments · 2 reactions · Opened Jun 14, 2024
OCaml 5.0 -> 5.1+: functions with explicit type signatures no longer show up in code lens and symbol list Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ocaml/ocaml-lsp#1256 · Opened May 12, 2024
ocaml-lsp's memory consumption Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

ocaml/ocaml-lsp#1234 · 2 comments · Opened Mar 8, 2024
semantic highlighting reasonml Open

ReasonML

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ocaml/ocaml-lsp#1230 · 1 comment · Opened Feb 13, 2024
type aliases weird behavior Open

merlin

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ocaml/ocaml-lsp#1227 · 3 comments · Opened Jan 17, 2024
Some problem with Windows and uppercase file names Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ocaml/ocaml-lsp#1224 · Opened Jan 7, 2024
Option to activate code lens does not work reliably Open

Difficulty 3/5 1-2 days Newbie friendliness 40/100

ocaml/ocaml-lsp#1222 · 5 comments · Opened Jan 4, 2024
Document setup instructions for some editors Open

Difficulty 2/5 1-3 hours Newbie friendliness 32/100

ocaml/ocaml-lsp#1220 · 1 comment · 1 reaction · Opened Jan 3, 2024
Issue with doc on constructors Open

bug merlin

Difficulty 3/5 1-2 days Newbie friendliness 25/100

ocaml/ocaml-lsp#1211 · 4 comments · Opened Nov 14, 2023
Support topiary as a formatter Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ocaml/ocaml-lsp#1206 · 6 comments · Opened Oct 27, 2023
feature request: have a "goto type" link on hover Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

ocaml/ocaml-lsp#1198 · Opened Oct 16, 2023
Jump to definition request fails with Merlin "Several source files in your path" error Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ocaml/ocaml-lsp#1187 · 10 comments · 1 reaction · Opened Sep 23, 2023
Debugging the language server Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ocaml/ocaml-lsp#1180 · Opened Sep 16, 2023
Rename does not work properly with ppx_string Open

merlin

Difficulty 3/5 1-2 days Newbie friendliness 42/100

ocaml/ocaml-lsp#1176 · 2 comments · Opened Sep 5, 2023
VSCode CodeLens not displayed as of ocaml-lsp-server 1.16 Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ocaml/ocaml-lsp#1164 · 2 comments · Opened Jul 10, 2023
ocamllsp shouldn't rely on `workspace/didChangeConfiguration` to get its settings Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

ocaml/ocaml-lsp#1160 · Opened Jul 4, 2023
Don't model reading from closed reader like reaching Eof Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ocaml/ocaml-lsp#1158 · Opened Jun 27, 2023
Make educated guess for type annotation inside extension point Open

enhancement merlin

Difficulty 5/5 Over a week Newbie friendliness 30/100

ocaml/ocaml-lsp#1152 · 3 comments · Opened Jun 20, 2023
Add Neovim support for `editor.action.triggerSuggest` Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

ocaml/ocaml-lsp#1142 · 1 comment · 1 reaction · Opened Jun 16, 2023
Feature request: restore some syntactic distinctions in semantic highlights Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

ocaml/ocaml-lsp#1139 · 3 comments · Opened Jun 14, 2023
must constantly restart lsp to get accurate information Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

ocaml/ocaml-lsp#1137 · 1 reaction · Opened Jun 13, 2023
Code Action to Re-Order Match Clauses Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 38/100

ocaml/ocaml-lsp#1121 · Opened Jun 7, 2023
LSP crashes in a file with a long list (in VS Code and in Vim) Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ocaml/ocaml-lsp#1112 · 4 comments · Opened May 31, 2023
Redefining a type shadows original type during type inference Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

ocaml/ocaml-lsp#1100 · 1 comment · 2 reactions · Opened May 22, 2023
Doc comments on variant constructors are unexpectedly merged together in some cases Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ocaml/ocaml-lsp#1096 · Opened May 15, 2023
Handle Merlin's PPX phase cache Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ocaml/ocaml-lsp#1095 · Opened May 15, 2023

ocaml/ocaml-lsp

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