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claude-code: load MCP config via plugin dir

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Claude Code rejects `--mcp-config` once the Home Manager wrapper injects
it around subcommands, which breaks commands like `claude mcp list`.
Claude Code 2.1.76 fixed `--plugin-dir` so it no longer consumes
following subcommands, so use that path for the generated MCP config
instead.

Generate a plugin directory with a manifest and `.mcp.json`, wrap
`claude` with `--plugin-dir` before user arguments, and snapshot that
wrapper directly in the tests. Keep the existing LSP support in the
generated plugin directory as well, and add coverage for the combined
MCP+LSP case plus the MCP integration merge path.

Signed-off-by: Austin Horstman <khaneliman12@gmail.com>
This commit is contained in:
Austin Horstman 2026-03-18 16:57:42 -05:00
parent d47357a4c8
commit 4fcef56c15
11 changed files with 205 additions and 39 deletions
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4
tests/modules/programs/claude-code/expected-lsp-wrapper
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@ -1,2 +1,2 @@
#! /nix/store/00000000000000000000000000000000-bash/bin/bash -e
exec -a "$0" "/nix/store/00000000000000000000000000000000-claude-code/bin/.claude-wrapped" "$@" --plugin-dir /nix/store/00000000000000000000000000000000-claude-code-lsp-plugin
#! @bash-interactive@/bin/bash -e
exec -a "$0" "/nix/store/00000000000000000000000000000000-claude-code/bin/.claude-wrapped" --plugin-dir /nix/store/00000000000000000000000000000000-claude-code-hm-plugin "$@"