# One buffered batch discovers an earlier unsaved caller edit, introduces a parameter, and lets a later insertion use the final signature.
stdin input.json
exec semedit mcp --enable-batching
! stdout '"name"\s*:\s*"refactor_introduce_parameter"'
stdout '"isError":false'
cmp service.go .scratch/want/service.txt
cmp calls.go .scratch/want/calls.txt
cmp other.go .scratch/want/other.txt
cmp service_test.go .scratch/want/service_test.txt
exec go test ./...
-- go.mod --
module example.com/introduceparameterbatch

go 1.24
-- input.json --
{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-06-18","initializationOptions":{"trust_workspace":true}}}
{"jsonrpc":"2.0","id":2,"method":"tools/list"}
{"jsonrpc":"2.0","id":3,"method":"tools/call","params":{"name":"semantic_batch","arguments":{"auto_organize_imports":true,"edits":[{"tool":"semantic_replace_body","params":{"file":"calls.go","symbol":"first","body":"return transform(7)"}},{"tool":"refactor_introduce_parameter","params":{"file":"service.go","symbol":"transform","parameters":[{"source_index":0,"parameter":{"name":"id","type":"int"}},{"parameter":{"name":"mode","type":"mode"},"argument":"3"}],"discriminator":"defaultMode"}},{"tool":"semantic_insert_function","params":{"file":"calls.go","source":"func later() int { return transform(9, 3) }"}}]}}}
-- service.go --
package sample

type mode int

const defaultMode mode = 3
func transform(id int) int { return id + int(defaultMode) }
-- calls.go --
package sample

func first() int { return 0 }
-- other.go --
package sample

func second() int { return transform(2) }
-- service_test.go --
package sample

import "testing"

func TestTransform(t *testing.T) {
	if got := transform(5); got != 8 {
		t.Fatalf("transform(5) = %d, want 8", got)
	}
}
-- .scratch/want/service.txt --
package sample

type mode int

const defaultMode mode = 3

func transform(id int, mode mode) int { return id + int(mode) }
-- .scratch/want/calls.txt --
package sample

func first() int {
	return transform(7, 3)
}

func later() int { return transform(9, 3) }
-- .scratch/want/other.txt --
package sample

func second() int { return transform(2, 3) }
-- .scratch/want/service_test.txt --
package sample

import "testing"

func TestTransform(t *testing.T) {
	if got := transform(5, 3); got != 8 {
		t.Fatalf("transform(5) = %d, want 8", got)
	}
}