diff --git a/frontend/src/content/en/harness/tools.mdx b/frontend/src/content/en/harness/tools.mdx
index a6ab242872..f806125e8e 100644
--- a/frontend/src/content/en/harness/tools.mdx
+++ b/frontend/src/content/en/harness/tools.mdx
@@ -72,7 +72,7 @@ Persists updates to the current custom agent's `SOUL.md` and `config.yaml`. Boun
 
 ### invoke_acp_agent
 
-Invokes an external agent using the [Agent Connect Protocol (ACP)](https://agentconnectprotocol.org/). Requires `acp_agents:` configuration in `config.yaml`. See the [Subagents](/docs/harness/subagents) page for ACP configuration.
+Invokes an external agent using the [Agent Client Protocol (ACP)](https://agentclientprotocol.com/). Requires `acp_agents:` configuration in `config.yaml`. See the [Subagents](/docs/harness/subagents) page for ACP configuration.
 
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diff --git a/frontend/src/content/zh/harness/tools.mdx b/frontend/src/content/zh/harness/tools.mdx
index 771439284b..52118192d2 100644
--- a/frontend/src/content/zh/harness/tools.mdx
+++ b/frontend/src/content/zh/harness/tools.mdx
@@ -69,7 +69,7 @@ task(agent="general-purpose", task="...", context="...")
 
 ### invoke_acp_agent
 
-使用 [Agent Connect Protocol (ACP)](https://agentconnectprotocol.org/) 调用外部 Agent。需要在 `config.yaml` 中配置 `acp_agents:`。参见[子 Agent](/docs/harness/subagents)页面了解 ACP 配置。
+使用 [Agent Client Protocol (ACP)](https://agentclientprotocol.com/) 调用外部 Agent。需要在 `config.yaml` 中配置 `acp_agents:`。参见[子 Agent](/docs/harness/subagents)页面了解 ACP 配置。
 
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