From 628cf498a7802df893494860b9c21ff46962395a Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Thu, 12 Mar 2026 11:31:50 +0900
Subject: [PATCH] pre-commit: remove markdown-link-check hook

External link checkers are inherently flaky in CI due to
websites blocking automated requests (e.g. 403 errors).
Also remove JSON hooks (pretty-format-json, check-json)
since no JSON files remain in the repository.

Co-authored-by: Claude <noreply@anthropic.com>
---
 .github/linters/mlc_config.json | 26 --------------------------
 .pre-commit-config.yaml         | 13 -------------
 2 files changed, 39 deletions(-)
 delete mode 100644 .github/linters/mlc_config.json

diff --git a/.github/linters/mlc_config.json b/.github/linters/mlc_config.json
deleted file mode 100644
index 25acbbb12..000000000
--- a/.github/linters/mlc_config.json
+++ /dev/null
@@ -1,26 +0,0 @@
-{
-  "retryOn429": true,
-  "retryCount": 3,
-  "aliveStatusCodes": [
-    200,
-    206,
-    502
-  ],
-  "ignorePatterns": [
-    {
-      "pattern": "^https://github.com/mruby/mruby/commit/"
-    },
-    {
-      "pattern": "^http://jp.rubyist.net/magazine/\\?0034-Enumerable_lz"
-    },
-    {
-      "pattern": "^https://ruby-doc.org/core-2.3.3"
-    },
-    {
-      "pattern": "^mailto:"
-    },
-    {
-      "pattern": "^https://www.iso.org/"
-    }
-  ]
-}
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 37b656628..7e07b4bf8 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -55,9 +55,6 @@ repos:
       - id: check-executables-have-shebangs
         exclude: ^test/t/lang\.rb$
       - id: check-illegal-windows-names
-      - id: pretty-format-json
-        args: [--autofix, --no-sort-keys]
-      - id: check-json
       - id: check-merge-conflict
       - id: check-shebang-scripts-are-executable
       - id: check-vcs-permalinks
@@ -107,16 +104,6 @@ repos:
         args: [--config=.github/linters/.markdown-lint.yml]
         types: [markdown]
         files: \.md$
-  - repo: https://github.com/tcort/markdown-link-check
-    rev: v3.14.2
-    hooks:
-      - id: markdown-link-check
-        name: run markdown-link-check
-        description: checks hyperlinks in Markdown files
-        args: [--config=.github/linters/mlc_config.json, -q]
-        stages: [manual]
-        types: [markdown]
-        files: \.md$
   - repo: https://github.com/rubocop/rubocop
     rev: v1.81.7
     hooks: