diff --git a/package-lock.json b/package-lock.json
index 4bdf885..986e122 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1027,7 +1027,6 @@
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       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@octokit/auth-token": "^6.0.0",
         "@octokit/graphql": "^9.0.3",
@@ -1611,7 +1610,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "undici-types": "~6.21.0"
       }
@@ -1661,7 +1659,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@typescript-eslint/scope-manager": "8.53.1",
         "@typescript-eslint/types": "8.53.1",
@@ -2063,7 +2060,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -2560,7 +2556,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.8.0",
         "@eslint-community/regexpp": "^4.12.1",
@@ -3849,7 +3844,6 @@
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.3.tgz",
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       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -4002,7 +3996,6 @@
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       "dev": true,
       "license": "Apache-2.0",
-      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -4208,7 +4201,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -4222,7 +4214,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@types/chai": "^5.2.2",
         "@vitest/expect": "3.2.4",
diff --git a/src/core/target-handlers/acp-handler.ts b/src/core/target-handlers/acp-handler.ts
index cfa023c..3920bbd 100644
--- a/src/core/target-handlers/acp-handler.ts
+++ b/src/core/target-handlers/acp-handler.ts
@@ -206,6 +206,10 @@ export class ACPTargetHandler implements TargetHandler {
     sessionId: string,
     content: string
   ): Promise<unknown> {
+    // NOTE: OpenCode supports multiple prompt formats:
+    // - prompt: [{ type: 'text', text: '...' }] (our format)
+    // - content: [{ role: 'user', content: '...' }] (alternative)
+    // Both are valid per ACP spec.
     return this.sendRequest(
       process,
       'session/prompt',