diff --git a/examples/acp-agent/tests/snapshots/pwsh-tool-turn/session.jsonl b/examples/acp-agent/tests/snapshots/pwsh-tool-turn/session.jsonl
index 061d3261a3..333948541c 100644
--- a/examples/acp-agent/tests/snapshots/pwsh-tool-turn/session.jsonl
+++ b/examples/acp-agent/tests/snapshots/pwsh-tool-turn/session.jsonl
@@ -15,7 +15,7 @@
 {"type":"assistant/chunk","seq":65,"time":1785655507602,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}}
 {"type":"assistant/message","seq":66,"time":1785655507604,"data":{"turn":1,"step":1,"message":{"role":"assistant","content":[{"type":"reasoning","text":"The user wants me to run a PowerShell command that outputs \"PWSH_OK\" and then reply with \"DONE\"."},{"type":"tool-call","id":"call_00_oEhmLGLNsvlumiE0WkXD0511","name":"pwsh","arguments":"{\"command\": \"Write-Output PWSH_OK\", \"description\": \"Output PWSH_OK string\"}"}],"source":{"kind":"model","provider":"deepseek-official","model":"deepseek-v4-pro"},"id":"4d81cc10-507e-49a8-96f4-aa3ae5ad2eb5"},"usage":{"inputTokens":816,"outputTokens":96,"cacheReadTokens":0,"reasoningTokens":25}},"sourceEventSeqs":[6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65],"surfaceOp":"append"}
 {"type":"tool/call","seq":67,"time":1785655507605,"data":{"turn":1,"step":1,"callId":"call_00_oEhmLGLNsvlumiE0WkXD0511","name":"pwsh","arguments":"{\"command\": \"Write-Output PWSH_OK\", \"description\": \"Output PWSH_OK string\"}"}}
-{"type":"tool/result","seq":68,"time":1785655507994,"data":{"turn":1,"step":1,"message":{"source":{"kind":"tool","callId":"call_00_oEhmLGLNsvlumiE0WkXD0511"},"content":[{"type":"tool-result","toolCallId":"call_00_oEhmLGLNsvlumiE0WkXD0511","content":[{"type":"text","text":"PWSH_OK\r\n"}],"isError":false}],"role":"user","id":"84a96d55-5bd5-46fc-ab0d-918882c504e2"}},"sourceEventSeqs":[67],"surfaceOp":"append"}
+{"type":"tool/result","seq":68,"time":1785655507994,"data":{"turn":1,"step":1,"message":{"source":{"kind":"tool","callId":"call_00_oEhmLGLNsvlumiE0WkXD0511"},"content":[{"type":"tool-result","toolCallId":"call_00_oEhmLGLNsvlumiE0WkXD0511","content":[{"type":"text","text":"PWSH_OK\n"}],"isError":false}],"role":"user","id":"84a96d55-5bd5-46fc-ab0d-918882c504e2"}},"sourceEventSeqs":[67],"surfaceOp":"append"}
 {"type":"step/end","seq":69,"time":1785655507994,"data":{"turn":1,"step":1}}
 {"type":"step/start","seq":70,"time":1785655508000,"data":{"turn":1,"step":2}}
 {"type":"assistant/chunk","seq":71,"time":1785655508608,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}}
diff --git a/packages/bash/tool-bash/tests/tools.spec.ts b/packages/bash/tool-bash/tests/tools.spec.ts
index b463bf4ef2..30a997b975 100644
--- a/packages/bash/tool-bash/tests/tools.spec.ts
+++ b/packages/bash/tool-bash/tests/tools.spec.ts
@@ -191,6 +191,7 @@ async function setupSandboxed(withApproval = false) {
   await ctx.plugin(SandboxPolicyService, {})
   await ctx.plugin(RecordingSandboxExecutor)
   if (withApproval) await ctx.plugin(ApprovalService)
+  await ctx.plugin(BashEnvPlugin)
   await ctx.plugin(ToolBash)
   return { ctx, bash: ctx.bash as RecordingSandboxExecutor }
 }
@@ -393,6 +394,7 @@ describe('bash tool', () => {
     await ctx.plugin(ToolRegistry)
     await ctx.plugin(LocalSubprocessService)
     await ctx.plugin(LocalBashExecutor, {})
+    await ctx.plugin(BashEnvPlugin)
     const fiber = await ctx.plugin(ToolBash)
     expect(ctx.tools.schemas()).toHaveLength(1)
     expect((await ctx.systemPrompt.assemble()).sections.map(s => s.name)).toEqual(['harness:identity', 'deployment:persona', 'tool:bash'])