diff --git a/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.dockerfile b/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.dockerfile
index 9a9e3a3..47b0f5e 100644
--- a/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.dockerfile
+++ b/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.dockerfile
@@ -6,17 +6,12 @@
 RUN git config --global user.email "$GIT_USER_EMAIL" && \
     git config --global user.name "$GIT_USER_NAME"
 
+LABEL sketch_context="afa0b82fd799233b6a1a96e027ea08f77f5727c5565b49d4455d3f58b19b3d8d"
 COPY . /app
 
 WORKDIR /app
 RUN if [ -f go.mod ]; then go mod download; fi
 
-RUN go install golang.org/x/tools/cmd/stringer@latest
-
-# Install any potentially useful development tools
-RUN apt-get install -y --no-install-recommends gcc build-essential make || true
-
-# Try to setup Python environment if needed
-RUN python3 -m pip install --upgrade pip || true
+# No additional setup required for this simple Go test project
 
 CMD ["/bin/sketch"]
diff --git a/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.httprr b/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.httprr
index f3b15f6..1652de8 100644
--- a/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.httprr
+++ b/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.httprr
@@ -1,9 +1,9 @@
 httprr trace v1
-2637 1843
+2682 2107
 POST https://api.anthropic.com/v1/messages HTTP/1.1
 Host: api.anthropic.com
 User-Agent: Go-http-client/1.1
-Content-Length: 2440
+Content-Length: 2485
 Anthropic-Version: 2023-06-01
 Content-Type: application/json
 
@@ -15,7 +15,7 @@
    "content": [
     {
      "type": "text",
-     "text": "\nCall the dockerfile tool to create a Dockerfile.\nThe parameters to dockerfile fill out the From and ExtraCmds\ntemplate variables in the following Go template:\n\n```\nFROM golang:1.24-bookworm\n\nRUN set -eux; \\\n\tapt-get update; \\\n\tapt-get install -y --no-install-recommends \\\n\t\tgit jq sqlite3 npm nodejs gh ripgrep fzf python3 curl vim\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\nRUN go install golang.org/x/tools/cmd/goimports@latest\nRUN go install golang.org/x/tools/gopls@latest\nRUN go install mvdan.cc/gofumpt@latest\n\nENV GOTOOLCHAIN=auto\n\nRUN mkdir -p /root/.cache/sketch/webui\n\nARG GIT_USER_EMAIL\nARG GIT_USER_NAME\n\nRUN git config --global user.email \"$GIT_USER_EMAIL\" \u0026\u0026 \\\n    git config --global user.name \"$GIT_USER_NAME\"\n\nCOPY . /app\n\nWORKDIR /app{{.SubDir}}\nRUN if [ -f go.mod ]; then go mod download; fi\n\n{{.ExtraCmds}}\n\nCMD [\"/bin/sketch\"]\n\n```\n\nIn particular:\n- Assume it is primarily a Go project.\n- Python env setup is challenging and often no required, so any RUN commands involving python tooling should be written to let docker build continue if there is a failure.\n- Include any tools particular to this repository that can be inferred from the given context.\n- Append || true to any apt-get install commands in case the package does not exist.\n- MINIMIZE the number of extra_cmds generated. Straightforward environments do not need any.\n- Do NOT expose any ports.\n- Do NOT generate any CMD or ENTRYPOINT extra commands.\nHere is the content of several files from the repository that may be relevant:\n\n"
+     "text": "\nCall the dockerfile tool to create a Dockerfile.\nThe parameters to dockerfile fill out the From and ExtraCmds\ntemplate variables in the following Go template:\n\n```\nFROM golang:1.24-bookworm\n\nRUN set -eux; \\\n\tapt-get update; \\\n\tapt-get install -y --no-install-recommends \\\n\t\tgit jq sqlite3 npm nodejs gh ripgrep fzf python3 curl vim\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\nRUN go install golang.org/x/tools/cmd/goimports@latest\nRUN go install golang.org/x/tools/gopls@latest\nRUN go install mvdan.cc/gofumpt@latest\n\nENV GOTOOLCHAIN=auto\n\nRUN mkdir -p /root/.cache/sketch/webui\n\nARG GIT_USER_EMAIL\nARG GIT_USER_NAME\n\nRUN git config --global user.email \"$GIT_USER_EMAIL\" \u0026\u0026 \\\n    git config --global user.name \"$GIT_USER_NAME\"\n\nLABEL sketch_context=\"{{.InitFilesHash}}\"\nCOPY . /app\n\nWORKDIR /app{{.SubDir}}\nRUN if [ -f go.mod ]; then go mod download; fi\n\n{{.ExtraCmds}}\n\nCMD [\"/bin/sketch\"]\n\n```\n\nIn particular:\n- Assume it is primarily a Go project.\n- Python env setup is challenging and often no required, so any RUN commands involving python tooling should be written to let docker build continue if there is a failure.\n- Include any tools particular to this repository that can be inferred from the given context.\n- Append || true to any apt-get install commands in case the package does not exist.\n- MINIMIZE the number of extra_cmds generated. Straightforward environments do not need any.\n- Do NOT expose any ports.\n- Do NOT generate any CMD or ENTRYPOINT extra commands.\nHere is the content of several files from the repository that may be relevant:\n\n"
     },
     {
      "type": "text",
@@ -54,23 +54,23 @@
 Anthropic-Organization-Id: 3c473a21-7208-450a-a9f8-80aebda45c1b
 Anthropic-Ratelimit-Input-Tokens-Limit: 200000
 Anthropic-Ratelimit-Input-Tokens-Remaining: 200000
-Anthropic-Ratelimit-Input-Tokens-Reset: 2025-04-30T22:04:05Z
+Anthropic-Ratelimit-Input-Tokens-Reset: 2025-05-01T01:25:07Z
 Anthropic-Ratelimit-Output-Tokens-Limit: 80000
 Anthropic-Ratelimit-Output-Tokens-Remaining: 80000
-Anthropic-Ratelimit-Output-Tokens-Reset: 2025-04-30T22:04:08Z
+Anthropic-Ratelimit-Output-Tokens-Reset: 2025-05-01T01:25:10Z
 Anthropic-Ratelimit-Requests-Limit: 4000
 Anthropic-Ratelimit-Requests-Remaining: 3999
-Anthropic-Ratelimit-Requests-Reset: 2025-04-30T22:04:04Z
+Anthropic-Ratelimit-Requests-Reset: 2025-05-01T01:25:01Z
 Anthropic-Ratelimit-Tokens-Limit: 280000
 Anthropic-Ratelimit-Tokens-Remaining: 280000
-Anthropic-Ratelimit-Tokens-Reset: 2025-04-30T22:04:05Z
+Anthropic-Ratelimit-Tokens-Reset: 2025-05-01T01:25:07Z
 Cf-Cache-Status: DYNAMIC
-Cf-Ray: 938a55312bd8cf05-SJC
+Cf-Ray: 938b7b884d569e5c-SJC
 Content-Type: application/json
-Date: Wed, 30 Apr 2025 22:04:08 GMT
-Request-Id: req_011CNfg371XDAe1Y9gVyKpwj
+Date: Thu, 01 May 2025 01:25:10 GMT
+Request-Id: req_011CNfwMpHE5n9J4LcvUc9cj
 Server: cloudflare
 Via: 1.1 google
 X-Robots-Tag: none
 
-{"id":"msg_01PkvGHd4a2yx34TunMEGznA","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"I'll help you create a Dockerfile for this Go project. Based on the template and the README.md, this appears to be a simple Go testing project. Since the project details are minimal, I'll keep the extra commands minimal as well."},{"type":"tool_use","id":"toolu_01PQ5Bzm1WMMfdUoYoF1YJpx","name":"dockerfile","input":{"extra_cmds":"RUN go install golang.org/x/tools/cmd/stringer@latest\n\n# Install any potentially useful development tools\nRUN apt-get install -y --no-install-recommends gcc build-essential make || true\n\n# Try to setup Python environment if needed\nRUN python3 -m pip install --upgrade pip || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":888,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"output_tokens":177}}
\ No newline at end of file
+{"id":"msg_01QtM6gyruMykGCZnqpZFWom","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"I'll help you create a Dockerfile for this Go project. Based on the template and files provided, this appears to be a simple Go test project without any special requirements beyond the standard Go development environment already included in the template.\n\nLooking at the contents of README.md, there's no indication of any special tools or dependencies beyond what's already in the template. The template already includes:\n- Go tooling (goimports, gopls, gofumpt)\n- Common development tools (git, jq, sqlite3, npm, nodejs, gh, ripgrep, fzf, etc.)\n\nSince this is a straightforward Go project without any special requirements inferred from the context, I'll call the dockerfile tool with minimal extra commands:"},{"type":"tool_use","id":"toolu_01WkcBWmnnsMdRBZz2sjJC81","name":"dockerfile","input":{"extra_cmds":"# No additional setup required for this simple Go test project"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":903,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"output_tokens":224}}
\ No newline at end of file
diff --git a/dockerimg/testdata/testcreatedockerfile_empty_repo.dockerfile b/dockerimg/testdata/testcreatedockerfile_empty_repo.dockerfile
index fb2fc22..94010f1 100644
--- a/dockerimg/testdata/testcreatedockerfile_empty_repo.dockerfile
+++ b/dockerimg/testdata/testcreatedockerfile_empty_repo.dockerfile
@@ -6,15 +6,19 @@
 RUN git config --global user.email "$GIT_USER_EMAIL" && \
     git config --global user.name "$GIT_USER_NAME"
 
+LABEL sketch_context="8680db4c498365658a6e773fde0d43f642ae6744f41a14ad6d01e9eae7064f65"
 COPY . /app
 
 WORKDIR /app
 RUN if [ -f go.mod ]; then go mod download; fi
 
-RUN set -eux; \
-    # Install any Python dependencies safely
-    pip3 install --no-cache-dir setuptools wheel || true; \
-    # Make sure sketch is executable
-    if [ -f /bin/sketch ]; then chmod +x /bin/sketch; fi
+# Install any Python dependencies but continue on error
+RUN if [ -f requirements.txt ]; then pip3 install -r requirements.txt || true; fi
+
+# Setup Go environment properly
+RUN if [ -f go.sum ]; then go mod tidy || true; fi
+
+# Make sure build scripts are executable
+RUN find . -name "*.sh" -exec chmod +x {} \; || true
 
 CMD ["/bin/sketch"]
diff --git a/dockerimg/testdata/testcreatedockerfile_empty_repo.httprr b/dockerimg/testdata/testcreatedockerfile_empty_repo.httprr
index d3c3c57..a6ee7e7 100644
--- a/dockerimg/testdata/testcreatedockerfile_empty_repo.httprr
+++ b/dockerimg/testdata/testcreatedockerfile_empty_repo.httprr
@@ -1,9 +1,9 @@
 httprr trace v1
-2390 1849
+2435 1897
 POST https://api.anthropic.com/v1/messages HTTP/1.1
 Host: api.anthropic.com
 User-Agent: Go-http-client/1.1
-Content-Length: 2193
+Content-Length: 2238
 Anthropic-Version: 2023-06-01
 Content-Type: application/json
 
@@ -15,7 +15,7 @@
    "content": [
     {
      "type": "text",
-     "text": "\nCall the dockerfile tool to create a Dockerfile.\nThe parameters to dockerfile fill out the From and ExtraCmds\ntemplate variables in the following Go template:\n\n```\nFROM golang:1.24-bookworm\n\nRUN set -eux; \\\n\tapt-get update; \\\n\tapt-get install -y --no-install-recommends \\\n\t\tgit jq sqlite3 npm nodejs gh ripgrep fzf python3 curl vim\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\nRUN go install golang.org/x/tools/cmd/goimports@latest\nRUN go install golang.org/x/tools/gopls@latest\nRUN go install mvdan.cc/gofumpt@latest\n\nENV GOTOOLCHAIN=auto\n\nRUN mkdir -p /root/.cache/sketch/webui\n\nARG GIT_USER_EMAIL\nARG GIT_USER_NAME\n\nRUN git config --global user.email \"$GIT_USER_EMAIL\" \u0026\u0026 \\\n    git config --global user.name \"$GIT_USER_NAME\"\n\nCOPY . /app\n\nWORKDIR /app{{.SubDir}}\nRUN if [ -f go.mod ]; then go mod download; fi\n\n{{.ExtraCmds}}\n\nCMD [\"/bin/sketch\"]\n\n```\n\nIn particular:\n- Assume it is primarily a Go project.\n- Python env setup is challenging and often no required, so any RUN commands involving python tooling should be written to let docker build continue if there is a failure.\n- Include any tools particular to this repository that can be inferred from the given context.\n- Append || true to any apt-get install commands in case the package does not exist.\n- MINIMIZE the number of extra_cmds generated. Straightforward environments do not need any.\n- Do NOT expose any ports.\n- Do NOT generate any CMD or ENTRYPOINT extra commands.\n"
+     "text": "\nCall the dockerfile tool to create a Dockerfile.\nThe parameters to dockerfile fill out the From and ExtraCmds\ntemplate variables in the following Go template:\n\n```\nFROM golang:1.24-bookworm\n\nRUN set -eux; \\\n\tapt-get update; \\\n\tapt-get install -y --no-install-recommends \\\n\t\tgit jq sqlite3 npm nodejs gh ripgrep fzf python3 curl vim\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\nRUN go install golang.org/x/tools/cmd/goimports@latest\nRUN go install golang.org/x/tools/gopls@latest\nRUN go install mvdan.cc/gofumpt@latest\n\nENV GOTOOLCHAIN=auto\n\nRUN mkdir -p /root/.cache/sketch/webui\n\nARG GIT_USER_EMAIL\nARG GIT_USER_NAME\n\nRUN git config --global user.email \"$GIT_USER_EMAIL\" \u0026\u0026 \\\n    git config --global user.name \"$GIT_USER_NAME\"\n\nLABEL sketch_context=\"{{.InitFilesHash}}\"\nCOPY . /app\n\nWORKDIR /app{{.SubDir}}\nRUN if [ -f go.mod ]; then go mod download; fi\n\n{{.ExtraCmds}}\n\nCMD [\"/bin/sketch\"]\n\n```\n\nIn particular:\n- Assume it is primarily a Go project.\n- Python env setup is challenging and often no required, so any RUN commands involving python tooling should be written to let docker build continue if there is a failure.\n- Include any tools particular to this repository that can be inferred from the given context.\n- Append || true to any apt-get install commands in case the package does not exist.\n- MINIMIZE the number of extra_cmds generated. Straightforward environments do not need any.\n- Do NOT expose any ports.\n- Do NOT generate any CMD or ENTRYPOINT extra commands.\n"
     },
     {
      "type": "text",
@@ -50,23 +50,23 @@
 Anthropic-Organization-Id: 3c473a21-7208-450a-a9f8-80aebda45c1b
 Anthropic-Ratelimit-Input-Tokens-Limit: 200000
 Anthropic-Ratelimit-Input-Tokens-Remaining: 200000
-Anthropic-Ratelimit-Input-Tokens-Reset: 2025-04-30T22:04:15Z
+Anthropic-Ratelimit-Input-Tokens-Reset: 2025-05-01T01:25:18Z
 Anthropic-Ratelimit-Output-Tokens-Limit: 80000
 Anthropic-Ratelimit-Output-Tokens-Remaining: 80000
-Anthropic-Ratelimit-Output-Tokens-Reset: 2025-04-30T22:04:17Z
+Anthropic-Ratelimit-Output-Tokens-Reset: 2025-05-01T01:25:21Z
 Anthropic-Ratelimit-Requests-Limit: 4000
 Anthropic-Ratelimit-Requests-Remaining: 3999
-Anthropic-Ratelimit-Requests-Reset: 2025-04-30T22:04:14Z
+Anthropic-Ratelimit-Requests-Reset: 2025-05-01T01:25:17Z
 Anthropic-Ratelimit-Tokens-Limit: 280000
 Anthropic-Ratelimit-Tokens-Remaining: 280000
-Anthropic-Ratelimit-Tokens-Reset: 2025-04-30T22:04:15Z
+Anthropic-Ratelimit-Tokens-Reset: 2025-05-01T01:25:18Z
 Cf-Cache-Status: DYNAMIC
-Cf-Ray: 938a556d1ea6cf05-SJC
+Cf-Ray: 938b7bf06c579e5c-SJC
 Content-Type: application/json
-Date: Wed, 30 Apr 2025 22:04:17 GMT
-Request-Id: req_011CNfg3oxdWdVmvCYDhj17W
+Date: Thu, 01 May 2025 01:25:21 GMT
+Request-Id: req_011CNfwP3eB71rSrsnZwG6yB
 Server: cloudflare
 Via: 1.1 google
 X-Robots-Tag: none
 
-{"id":"msg_011ukJ3isPb91KkWgvwLnub2","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"I'll help you create a Dockerfile by calling the dockerfile tool with appropriate extra commands. Based on your requirements, I'll keep the extra commands minimal while ensuring Python setup continues even if there are failures, and I'll include the necessary safety mechanisms for apt-get commands."},{"type":"tool_use","id":"toolu_01Mkj468d88fLpyQCZy8cu13","name":"dockerfile","input":{"extra_cmds":"RUN set -eux; \\\n    # Install any Python dependencies safely\n    pip3 install --no-cache-dir setuptools wheel || true; \\\n    # Make sure sketch is executable\n    if [ -f /bin/sketch ]; then chmod +x /bin/sketch; fi"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":844,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"output_tokens":174}}
\ No newline at end of file
+{"id":"msg_01MP89fzED7GroE4qh6DKasp","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"I'll call the dockerfile tool to create a Dockerfile for your Go project. Based on your requirements, I need to include commands that are resilient to failures (especially for Python setup) and append \"|| true\" to apt-get install commands."},{"type":"tool_use","id":"toolu_01Q5kAUCGzLvV2tSfxczMFSA","name":"dockerfile","input":{"extra_cmds":"# Install any Python dependencies but continue on error\nRUN if [ -f requirements.txt ]; then pip3 install -r requirements.txt || true; fi\n\n# Setup Go environment properly\nRUN if [ -f go.sum ]; then go mod tidy || true; fi\n\n# Make sure build scripts are executable\nRUN find . -name \"*.sh\" -exec chmod +x {} \\; || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":859,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"output_tokens":198}}
\ No newline at end of file
diff --git a/dockerimg/testdata/testcreatedockerfile_mention_a_devtool_in_the_readme.dockerfile b/dockerimg/testdata/testcreatedockerfile_mention_a_devtool_in_the_readme.dockerfile
index a6b320d..129f7f6 100644
--- a/dockerimg/testdata/testcreatedockerfile_mention_a_devtool_in_the_readme.dockerfile
+++ b/dockerimg/testdata/testcreatedockerfile_mention_a_devtool_in_the_readme.dockerfile
@@ -6,6 +6,7 @@
 RUN git config --global user.email "$GIT_USER_EMAIL" && \
     git config --global user.name "$GIT_USER_NAME"
 
+LABEL sketch_context="fc9dd68c203618c0f878c9e10883e960cd88654a9a183f09f02db495ac0fb20a"
 COPY . /app
 
 WORKDIR /app
diff --git a/dockerimg/testdata/testcreatedockerfile_mention_a_devtool_in_the_readme.httprr b/dockerimg/testdata/testcreatedockerfile_mention_a_devtool_in_the_readme.httprr
index 31019e1..eee33e4 100644
--- a/dockerimg/testdata/testcreatedockerfile_mention_a_devtool_in_the_readme.httprr
+++ b/dockerimg/testdata/testcreatedockerfile_mention_a_devtool_in_the_readme.httprr
@@ -1,9 +1,9 @@
 httprr trace v1
-2652 1635
+2697 1730
 POST https://api.anthropic.com/v1/messages HTTP/1.1
 Host: api.anthropic.com
 User-Agent: Go-http-client/1.1
-Content-Length: 2455
+Content-Length: 2500
 Anthropic-Version: 2023-06-01
 Content-Type: application/json
 
@@ -15,7 +15,7 @@
    "content": [
     {
      "type": "text",
-     "text": "\nCall the dockerfile tool to create a Dockerfile.\nThe parameters to dockerfile fill out the From and ExtraCmds\ntemplate variables in the following Go template:\n\n```\nFROM golang:1.24-bookworm\n\nRUN set -eux; \\\n\tapt-get update; \\\n\tapt-get install -y --no-install-recommends \\\n\t\tgit jq sqlite3 npm nodejs gh ripgrep fzf python3 curl vim\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\nRUN go install golang.org/x/tools/cmd/goimports@latest\nRUN go install golang.org/x/tools/gopls@latest\nRUN go install mvdan.cc/gofumpt@latest\n\nENV GOTOOLCHAIN=auto\n\nRUN mkdir -p /root/.cache/sketch/webui\n\nARG GIT_USER_EMAIL\nARG GIT_USER_NAME\n\nRUN git config --global user.email \"$GIT_USER_EMAIL\" \u0026\u0026 \\\n    git config --global user.name \"$GIT_USER_NAME\"\n\nCOPY . /app\n\nWORKDIR /app{{.SubDir}}\nRUN if [ -f go.mod ]; then go mod download; fi\n\n{{.ExtraCmds}}\n\nCMD [\"/bin/sketch\"]\n\n```\n\nIn particular:\n- Assume it is primarily a Go project.\n- Python env setup is challenging and often no required, so any RUN commands involving python tooling should be written to let docker build continue if there is a failure.\n- Include any tools particular to this repository that can be inferred from the given context.\n- Append || true to any apt-get install commands in case the package does not exist.\n- MINIMIZE the number of extra_cmds generated. Straightforward environments do not need any.\n- Do NOT expose any ports.\n- Do NOT generate any CMD or ENTRYPOINT extra commands.\nHere is the content of several files from the repository that may be relevant:\n\n"
+     "text": "\nCall the dockerfile tool to create a Dockerfile.\nThe parameters to dockerfile fill out the From and ExtraCmds\ntemplate variables in the following Go template:\n\n```\nFROM golang:1.24-bookworm\n\nRUN set -eux; \\\n\tapt-get update; \\\n\tapt-get install -y --no-install-recommends \\\n\t\tgit jq sqlite3 npm nodejs gh ripgrep fzf python3 curl vim\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\nRUN go install golang.org/x/tools/cmd/goimports@latest\nRUN go install golang.org/x/tools/gopls@latest\nRUN go install mvdan.cc/gofumpt@latest\n\nENV GOTOOLCHAIN=auto\n\nRUN mkdir -p /root/.cache/sketch/webui\n\nARG GIT_USER_EMAIL\nARG GIT_USER_NAME\n\nRUN git config --global user.email \"$GIT_USER_EMAIL\" \u0026\u0026 \\\n    git config --global user.name \"$GIT_USER_NAME\"\n\nLABEL sketch_context=\"{{.InitFilesHash}}\"\nCOPY . /app\n\nWORKDIR /app{{.SubDir}}\nRUN if [ -f go.mod ]; then go mod download; fi\n\n{{.ExtraCmds}}\n\nCMD [\"/bin/sketch\"]\n\n```\n\nIn particular:\n- Assume it is primarily a Go project.\n- Python env setup is challenging and often no required, so any RUN commands involving python tooling should be written to let docker build continue if there is a failure.\n- Include any tools particular to this repository that can be inferred from the given context.\n- Append || true to any apt-get install commands in case the package does not exist.\n- MINIMIZE the number of extra_cmds generated. Straightforward environments do not need any.\n- Do NOT expose any ports.\n- Do NOT generate any CMD or ENTRYPOINT extra commands.\nHere is the content of several files from the repository that may be relevant:\n\n"
     },
     {
      "type": "text",
@@ -54,23 +54,23 @@
 Anthropic-Organization-Id: 3c473a21-7208-450a-a9f8-80aebda45c1b
 Anthropic-Ratelimit-Input-Tokens-Limit: 200000
 Anthropic-Ratelimit-Input-Tokens-Remaining: 200000
-Anthropic-Ratelimit-Input-Tokens-Reset: 2025-04-30T22:04:12Z
+Anthropic-Ratelimit-Input-Tokens-Reset: 2025-05-01T01:25:15Z
 Anthropic-Ratelimit-Output-Tokens-Limit: 80000
 Anthropic-Ratelimit-Output-Tokens-Remaining: 80000
-Anthropic-Ratelimit-Output-Tokens-Reset: 2025-04-30T22:04:13Z
+Anthropic-Ratelimit-Output-Tokens-Reset: 2025-05-01T01:25:17Z
 Anthropic-Ratelimit-Requests-Limit: 4000
 Anthropic-Ratelimit-Requests-Remaining: 3999
-Anthropic-Ratelimit-Requests-Reset: 2025-04-30T22:04:11Z
+Anthropic-Ratelimit-Requests-Reset: 2025-05-01T01:25:14Z
 Anthropic-Ratelimit-Tokens-Limit: 280000
 Anthropic-Ratelimit-Tokens-Remaining: 280000
-Anthropic-Ratelimit-Tokens-Reset: 2025-04-30T22:04:12Z
+Anthropic-Ratelimit-Tokens-Reset: 2025-05-01T01:25:15Z
 Cf-Cache-Status: DYNAMIC
-Cf-Ray: 938a555caefccf05-SJC
+Cf-Ray: 938b7bdcec5a9e5c-SJC
 Content-Type: application/json
-Date: Wed, 30 Apr 2025 22:04:13 GMT
-Request-Id: req_011CNfg3cezA5KjxVJRayvfp
+Date: Thu, 01 May 2025 01:25:17 GMT
+Request-Id: req_011CNfwNpB3xiUA1NXD4aSZh
 Server: cloudflare
 Via: 1.1 google
 X-Robots-Tag: none
 
-{"id":"msg_01XAMKd1fe8F2a6raDjAQRt7","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"Based on the provided information, I'll call the dockerfile tool to create a Dockerfile for this Go project. The readme mentions that `dot` (a part of the Graphviz package) is required to run tests, so I'll include that in the extra commands."},{"type":"tool_use","id":"toolu_018N851d5pFsgDAF8J564daa","name":"dockerfile","input":{"extra_cmds":"RUN apt-get install -y --no-install-recommends graphviz || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":893,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"output_tokens":130}}
\ No newline at end of file
+{"id":"msg_01MLsKiYXtB2c5xZfggoa2W5","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"Based on the provided template and the requirements, I'll help you create a Dockerfile using the dockerfile tool. \n\nFrom the readme.md file, I can see that the project requires the `dot` command to run tests. The `dot` command is typically provided by the `graphviz` package. I'll include this in the extra commands for the Dockerfile."},{"type":"tool_use","id":"toolu_01JGkNPfiCUr6dYzHhHKa2cR","name":"dockerfile","input":{"extra_cmds":"RUN apt-get install -y --no-install-recommends graphviz || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":908,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"output_tokens":151}}
\ No newline at end of file
diff --git a/dockerimg/testdata/testcreatedockerfile_python_misery.dockerfile b/dockerimg/testdata/testcreatedockerfile_python_misery.dockerfile
index d61eed3..031bf57 100644
--- a/dockerimg/testdata/testcreatedockerfile_python_misery.dockerfile
+++ b/dockerimg/testdata/testcreatedockerfile_python_misery.dockerfile
@@ -6,14 +6,17 @@
 RUN git config --global user.email "$GIT_USER_EMAIL" && \
     git config --global user.name "$GIT_USER_NAME"
 
+LABEL sketch_context="06ae0e78aabfa84fc629e6585f6260ec08fb49fc84330a9307173654d41a5628"
 COPY . /app
 
 WORKDIR /app
 RUN if [ -f go.mod ]; then go mod download; fi
 
-# Install Python 3.11 and ensure it's the default python3
-RUN apt-get update && apt-get install -y --no-install-recommends python3.11 python3.11-venv python3-pip || true
-RUN update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.11 1
+# Install Python 3.11
+RUN apt-get update && apt-get install -y --no-install-recommends python3.11 python3.11-dev python3.11-venv python3-pip || true
+
+# Set up Python environment
+RUN update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.11 1 || true
 
 # Install DVC tool
 RUN pip3 install dvc || true
diff --git a/dockerimg/testdata/testcreatedockerfile_python_misery.httprr b/dockerimg/testdata/testcreatedockerfile_python_misery.httprr
index be45494..ab18318 100644
--- a/dockerimg/testdata/testcreatedockerfile_python_misery.httprr
+++ b/dockerimg/testdata/testcreatedockerfile_python_misery.httprr
@@ -1,9 +1,9 @@
 httprr trace v1
-2675 1873
+2720 1878
 POST https://api.anthropic.com/v1/messages HTTP/1.1
 Host: api.anthropic.com
 User-Agent: Go-http-client/1.1
-Content-Length: 2478
+Content-Length: 2523
 Anthropic-Version: 2023-06-01
 Content-Type: application/json
 
@@ -15,7 +15,7 @@
    "content": [
     {
      "type": "text",
-     "text": "\nCall the dockerfile tool to create a Dockerfile.\nThe parameters to dockerfile fill out the From and ExtraCmds\ntemplate variables in the following Go template:\n\n```\nFROM golang:1.24-bookworm\n\nRUN set -eux; \\\n\tapt-get update; \\\n\tapt-get install -y --no-install-recommends \\\n\t\tgit jq sqlite3 npm nodejs gh ripgrep fzf python3 curl vim\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\nRUN go install golang.org/x/tools/cmd/goimports@latest\nRUN go install golang.org/x/tools/gopls@latest\nRUN go install mvdan.cc/gofumpt@latest\n\nENV GOTOOLCHAIN=auto\n\nRUN mkdir -p /root/.cache/sketch/webui\n\nARG GIT_USER_EMAIL\nARG GIT_USER_NAME\n\nRUN git config --global user.email \"$GIT_USER_EMAIL\" \u0026\u0026 \\\n    git config --global user.name \"$GIT_USER_NAME\"\n\nCOPY . /app\n\nWORKDIR /app{{.SubDir}}\nRUN if [ -f go.mod ]; then go mod download; fi\n\n{{.ExtraCmds}}\n\nCMD [\"/bin/sketch\"]\n\n```\n\nIn particular:\n- Assume it is primarily a Go project.\n- Python env setup is challenging and often no required, so any RUN commands involving python tooling should be written to let docker build continue if there is a failure.\n- Include any tools particular to this repository that can be inferred from the given context.\n- Append || true to any apt-get install commands in case the package does not exist.\n- MINIMIZE the number of extra_cmds generated. Straightforward environments do not need any.\n- Do NOT expose any ports.\n- Do NOT generate any CMD or ENTRYPOINT extra commands.\nHere is the content of several files from the repository that may be relevant:\n\n"
+     "text": "\nCall the dockerfile tool to create a Dockerfile.\nThe parameters to dockerfile fill out the From and ExtraCmds\ntemplate variables in the following Go template:\n\n```\nFROM golang:1.24-bookworm\n\nRUN set -eux; \\\n\tapt-get update; \\\n\tapt-get install -y --no-install-recommends \\\n\t\tgit jq sqlite3 npm nodejs gh ripgrep fzf python3 curl vim\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\nRUN go install golang.org/x/tools/cmd/goimports@latest\nRUN go install golang.org/x/tools/gopls@latest\nRUN go install mvdan.cc/gofumpt@latest\n\nENV GOTOOLCHAIN=auto\n\nRUN mkdir -p /root/.cache/sketch/webui\n\nARG GIT_USER_EMAIL\nARG GIT_USER_NAME\n\nRUN git config --global user.email \"$GIT_USER_EMAIL\" \u0026\u0026 \\\n    git config --global user.name \"$GIT_USER_NAME\"\n\nLABEL sketch_context=\"{{.InitFilesHash}}\"\nCOPY . /app\n\nWORKDIR /app{{.SubDir}}\nRUN if [ -f go.mod ]; then go mod download; fi\n\n{{.ExtraCmds}}\n\nCMD [\"/bin/sketch\"]\n\n```\n\nIn particular:\n- Assume it is primarily a Go project.\n- Python env setup is challenging and often no required, so any RUN commands involving python tooling should be written to let docker build continue if there is a failure.\n- Include any tools particular to this repository that can be inferred from the given context.\n- Append || true to any apt-get install commands in case the package does not exist.\n- MINIMIZE the number of extra_cmds generated. Straightforward environments do not need any.\n- Do NOT expose any ports.\n- Do NOT generate any CMD or ENTRYPOINT extra commands.\nHere is the content of several files from the repository that may be relevant:\n\n"
     },
     {
      "type": "text",
@@ -54,23 +54,23 @@
 Anthropic-Organization-Id: 3c473a21-7208-450a-a9f8-80aebda45c1b
 Anthropic-Ratelimit-Input-Tokens-Limit: 200000
 Anthropic-Ratelimit-Input-Tokens-Remaining: 200000
-Anthropic-Ratelimit-Input-Tokens-Reset: 2025-04-30T22:04:18Z
+Anthropic-Ratelimit-Input-Tokens-Reset: 2025-05-01T01:25:24Z
 Anthropic-Ratelimit-Output-Tokens-Limit: 80000
 Anthropic-Ratelimit-Output-Tokens-Remaining: 80000
-Anthropic-Ratelimit-Output-Tokens-Reset: 2025-04-30T22:04:21Z
+Anthropic-Ratelimit-Output-Tokens-Reset: 2025-05-01T01:25:27Z
 Anthropic-Ratelimit-Requests-Limit: 4000
 Anthropic-Ratelimit-Requests-Remaining: 3999
-Anthropic-Ratelimit-Requests-Reset: 2025-04-30T22:04:18Z
+Anthropic-Ratelimit-Requests-Reset: 2025-05-01T01:25:21Z
 Anthropic-Ratelimit-Tokens-Limit: 280000
 Anthropic-Ratelimit-Tokens-Remaining: 280000
-Anthropic-Ratelimit-Tokens-Reset: 2025-04-30T22:04:18Z
+Anthropic-Ratelimit-Tokens-Reset: 2025-05-01T01:25:24Z
 Cf-Cache-Status: DYNAMIC
-Cf-Ray: 938a55847cf9cf05-SJC
+Cf-Ray: 938b7c0b3c2b9e5c-SJC
 Content-Type: application/json
-Date: Wed, 30 Apr 2025 22:04:21 GMT
-Request-Id: req_011CNfg45vZqeRUpncm8aMJG
+Date: Thu, 01 May 2025 01:25:27 GMT
+Request-Id: req_011CNfwPMwWSkNQonwYtebtX
 Server: cloudflare
 Via: 1.1 google
 X-Robots-Tag: none
 
-{"id":"msg_01VzFn44Swuuo4pHL5q2HXNi","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"Based on the information provided, I see that this is primarily a Go project, but also requires Python 3.11 and the DVC tool according to the README.md. I'll create a Dockerfile with appropriate extra commands to set up these requirements."},{"type":"tool_use","id":"toolu_01UhMAHuapY5DwfyQB1iNAez","name":"dockerfile","input":{"extra_cmds":"# Install Python 3.11 and ensure it's the default python3\nRUN apt-get update && apt-get install -y --no-install-recommends python3.11 python3.11-venv python3-pip || true\nRUN update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.11 1\n\n# Install DVC tool\nRUN pip3 install dvc || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":900,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"output_tokens":211}}
\ No newline at end of file
+{"id":"msg_01X4EW9PpfxCdujwVQFTfFNW","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"Based on the README.md, I can see that this project requires Python 3.11 and the DVC tool, which should be included in the Dockerfile. I'll call the dockerfile tool with appropriate extra commands to set up these requirements."},{"type":"tool_use","id":"toolu_01WSaqTV4yGpqQzBnPSPMfJS","name":"dockerfile","input":{"extra_cmds":"# Install Python 3.11\nRUN apt-get update && apt-get install -y --no-install-recommends python3.11 python3.11-dev python3.11-venv python3-pip || true\n\n# Set up Python environment\nRUN update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.11 1 || true\n\n# Install DVC tool\nRUN pip3 install dvc || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":915,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"output_tokens":215}}
\ No newline at end of file
diff --git a/dockerimg/testdata/testcreatedockerfile_repo_with_readme_and_workflow.dockerfile b/dockerimg/testdata/testcreatedockerfile_repo_with_readme_and_workflow.dockerfile
index c370993..fae80a3 100644
--- a/dockerimg/testdata/testcreatedockerfile_repo_with_readme_and_workflow.dockerfile
+++ b/dockerimg/testdata/testcreatedockerfile_repo_with_readme_and_workflow.dockerfile
@@ -6,12 +6,15 @@
 RUN git config --global user.email "$GIT_USER_EMAIL" && \
     git config --global user.name "$GIT_USER_NAME"
 
+LABEL sketch_context="3d03f73f3537490cbbce6b19d529404113eefbf09d3b77bbc1c05c35505b44fb"
 COPY . /app
 
 WORKDIR /app
 RUN if [ -f go.mod ]; then go mod download; fi
 
-RUN npm install -g corepack && corepack enable
-RUN go test ./... || true
+RUN npm install -g corepack && corepack enable || true
+
+# If there are package.json files, install dependencies
+RUN find . -name "package.json" -maxdepth 3 -execdir npm install \; || true
 
 CMD ["/bin/sketch"]
diff --git a/dockerimg/testdata/testcreatedockerfile_repo_with_readme_and_workflow.httprr b/dockerimg/testdata/testcreatedockerfile_repo_with_readme_and_workflow.httprr
index c9b73cf..633149e 100644
--- a/dockerimg/testdata/testcreatedockerfile_repo_with_readme_and_workflow.httprr
+++ b/dockerimg/testdata/testcreatedockerfile_repo_with_readme_and_workflow.httprr
@@ -1,9 +1,9 @@
 httprr trace v1
-3124 1617
+3169 1716
 POST https://api.anthropic.com/v1/messages HTTP/1.1
 Host: api.anthropic.com
 User-Agent: Go-http-client/1.1
-Content-Length: 2927
+Content-Length: 2972
 Anthropic-Version: 2023-06-01
 Content-Type: application/json
 
@@ -15,7 +15,7 @@
    "content": [
     {
      "type": "text",
-     "text": "\nCall the dockerfile tool to create a Dockerfile.\nThe parameters to dockerfile fill out the From and ExtraCmds\ntemplate variables in the following Go template:\n\n```\nFROM golang:1.24-bookworm\n\nRUN set -eux; \\\n\tapt-get update; \\\n\tapt-get install -y --no-install-recommends \\\n\t\tgit jq sqlite3 npm nodejs gh ripgrep fzf python3 curl vim\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\nRUN go install golang.org/x/tools/cmd/goimports@latest\nRUN go install golang.org/x/tools/gopls@latest\nRUN go install mvdan.cc/gofumpt@latest\n\nENV GOTOOLCHAIN=auto\n\nRUN mkdir -p /root/.cache/sketch/webui\n\nARG GIT_USER_EMAIL\nARG GIT_USER_NAME\n\nRUN git config --global user.email \"$GIT_USER_EMAIL\" \u0026\u0026 \\\n    git config --global user.name \"$GIT_USER_NAME\"\n\nCOPY . /app\n\nWORKDIR /app{{.SubDir}}\nRUN if [ -f go.mod ]; then go mod download; fi\n\n{{.ExtraCmds}}\n\nCMD [\"/bin/sketch\"]\n\n```\n\nIn particular:\n- Assume it is primarily a Go project.\n- Python env setup is challenging and often no required, so any RUN commands involving python tooling should be written to let docker build continue if there is a failure.\n- Include any tools particular to this repository that can be inferred from the given context.\n- Append || true to any apt-get install commands in case the package does not exist.\n- MINIMIZE the number of extra_cmds generated. Straightforward environments do not need any.\n- Do NOT expose any ports.\n- Do NOT generate any CMD or ENTRYPOINT extra commands.\nHere is the content of several files from the repository that may be relevant:\n\n"
+     "text": "\nCall the dockerfile tool to create a Dockerfile.\nThe parameters to dockerfile fill out the From and ExtraCmds\ntemplate variables in the following Go template:\n\n```\nFROM golang:1.24-bookworm\n\nRUN set -eux; \\\n\tapt-get update; \\\n\tapt-get install -y --no-install-recommends \\\n\t\tgit jq sqlite3 npm nodejs gh ripgrep fzf python3 curl vim\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\nRUN go install golang.org/x/tools/cmd/goimports@latest\nRUN go install golang.org/x/tools/gopls@latest\nRUN go install mvdan.cc/gofumpt@latest\n\nENV GOTOOLCHAIN=auto\n\nRUN mkdir -p /root/.cache/sketch/webui\n\nARG GIT_USER_EMAIL\nARG GIT_USER_NAME\n\nRUN git config --global user.email \"$GIT_USER_EMAIL\" \u0026\u0026 \\\n    git config --global user.name \"$GIT_USER_NAME\"\n\nLABEL sketch_context=\"{{.InitFilesHash}}\"\nCOPY . /app\n\nWORKDIR /app{{.SubDir}}\nRUN if [ -f go.mod ]; then go mod download; fi\n\n{{.ExtraCmds}}\n\nCMD [\"/bin/sketch\"]\n\n```\n\nIn particular:\n- Assume it is primarily a Go project.\n- Python env setup is challenging and often no required, so any RUN commands involving python tooling should be written to let docker build continue if there is a failure.\n- Include any tools particular to this repository that can be inferred from the given context.\n- Append || true to any apt-get install commands in case the package does not exist.\n- MINIMIZE the number of extra_cmds generated. Straightforward environments do not need any.\n- Do NOT expose any ports.\n- Do NOT generate any CMD or ENTRYPOINT extra commands.\nHere is the content of several files from the repository that may be relevant:\n\n"
     },
     {
      "type": "text",
@@ -58,23 +58,23 @@
 Anthropic-Organization-Id: 3c473a21-7208-450a-a9f8-80aebda45c1b
 Anthropic-Ratelimit-Input-Tokens-Limit: 200000
 Anthropic-Ratelimit-Input-Tokens-Remaining: 200000
-Anthropic-Ratelimit-Input-Tokens-Reset: 2025-04-30T22:04:09Z
+Anthropic-Ratelimit-Input-Tokens-Reset: 2025-05-01T01:25:12Z
 Anthropic-Ratelimit-Output-Tokens-Limit: 80000
 Anthropic-Ratelimit-Output-Tokens-Remaining: 80000
-Anthropic-Ratelimit-Output-Tokens-Reset: 2025-04-30T22:04:11Z
+Anthropic-Ratelimit-Output-Tokens-Reset: 2025-05-01T01:25:14Z
 Anthropic-Ratelimit-Requests-Limit: 4000
 Anthropic-Ratelimit-Requests-Remaining: 3999
-Anthropic-Ratelimit-Requests-Reset: 2025-04-30T22:04:08Z
+Anthropic-Ratelimit-Requests-Reset: 2025-05-01T01:25:11Z
 Anthropic-Ratelimit-Tokens-Limit: 280000
 Anthropic-Ratelimit-Tokens-Remaining: 280000
-Anthropic-Ratelimit-Tokens-Reset: 2025-04-30T22:04:09Z
+Anthropic-Ratelimit-Tokens-Reset: 2025-05-01T01:25:12Z
 Cf-Cache-Status: DYNAMIC
-Cf-Ray: 938a55495bcfcf05-SJC
+Cf-Ray: 938b7bc86bae9e5c-SJC
 Content-Type: application/json
-Date: Wed, 30 Apr 2025 22:04:11 GMT
-Request-Id: req_011CNfg3PUiw54oU5SDDqogp
+Date: Thu, 01 May 2025 01:25:14 GMT
+Request-Id: req_011CNfwNa7TzBVPvxNE1i3cE
 Server: cloudflare
 Via: 1.1 google
 X-Robots-Tag: none
 
-{"id":"msg_016YHPtsHb19sgdNsTMYavqN","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"Looking at the provided files, I see this is primarily a Go project that also uses Node.js with version 18, and specifically uses corepack. I'll create an appropriate Dockerfile based on the template you provided."},{"type":"tool_use","id":"toolu_01HRH9rytSWDc9x3ov8QpnTc","name":"dockerfile","input":{"extra_cmds":"RUN npm install -g corepack && corepack enable\nRUN go test ./... || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1017,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"output_tokens":124}}
\ No newline at end of file
+{"id":"msg_01JcRhsSKYT8GhXwP4oXUVhv","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"Based on the repository information provided, I can see this is primarily a Go project that also uses Node.js with corepack enabled. I'll create an appropriate Dockerfile for this environment."},{"type":"tool_use","id":"toolu_01RYAqBMv9dmKdTp8mpsqS75","name":"dockerfile","input":{"extra_cmds":"RUN npm install -g corepack && corepack enable || true\n\n# If there are package.json files, install dependencies\nRUN find . -name \"package.json\" -maxdepth 3 -execdir npm install \\; || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1028,"cache_read_input_tokens":0,"output_tokens":150}}
\ No newline at end of file