diff --git a/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.dockerfile b/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.dockerfile
index b23552a..8ea2cdb 100644
--- a/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.dockerfile
+++ b/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.dockerfile
@@ -4,14 +4,15 @@
 ARG GIT_USER_NAME
 
 RUN git config --global user.email "$GIT_USER_EMAIL" && \
-    git config --global user.name "$GIT_USER_NAME"
+    git config --global user.name "$GIT_USER_NAME" && \
+    git config --global http.postBuffer 524288000
 
-LABEL sketch_context="1904f4ae13566afc998b89a591dd37bac3bbe5ee0811b3c8c5d017baa0b7a924"
+LABEL sketch_context="f6830cad46a9b0d71acb50ff81972f4494fe1a9d90869544b692bc26dd43adfb"
 COPY . /app
 
 WORKDIR /app
 RUN if [ -f go.mod ]; then go mod download; fi
 
-RUN echo "Setting up test project environment" || 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 9c3b36c..14045eb 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
-3609 2037
+3676 1943
 POST https://api.anthropic.com/v1/messages HTTP/1.1
 Host: api.anthropic.com
 User-Agent: Go-http-client/1.1
-Content-Length: 3412
+Content-Length: 3479
 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\n# attempt to keep package installs lean\nRUN printf '%s\\n' \\\n      'path-exclude=/usr/share/man/*' \\\n      'path-exclude=/usr/share/doc/*' \\\n      'path-exclude=/usr/share/doc-base/*' \\\n      'path-exclude=/usr/share/info/*' \\\n      'path-exclude=/usr/share/locale/*' \\\n      'path-exclude=/usr/share/groff/*' \\\n      'path-exclude=/usr/share/lintian/*' \\\n      'path-exclude=/usr/share/zoneinfo/*' \\\n    \u003e /etc/dpkg/dpkg.cfg.d/01_nodoc\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 \u0026\u0026 \\\n\tapt-get clean \u0026\u0026 \\\n\trm -rf /var/lib/apt/lists/*\n\n# Strip out docs from debian.\nRUN rm -rf /usr/share/{doc,doc-base,info,lintian,man,groff,locale,zoneinfo}/*\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\n# While these binaries install generally useful supporting packages,\n# the specific versions are rarely what a user wants so there is no\n# point polluting the base image module with them.\n\nRUN set -eux; \\\n\tgo install golang.org/x/tools/cmd/goimports@latest; \\\n\tgo install golang.org/x/tools/gopls@latest; \\\n\tgo install mvdan.cc/gofumpt@latest; \\\n\tgo clean -cache -testcache -modcache\n\nENV GOTOOLCHAIN=auto\nENV SKETCH=1\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"
+     "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\n# attempt to keep package installs lean\nRUN printf '%s\\n' \\\n      'path-exclude=/usr/share/man/*' \\\n      'path-exclude=/usr/share/doc/*' \\\n      'path-exclude=/usr/share/doc-base/*' \\\n      'path-exclude=/usr/share/info/*' \\\n      'path-exclude=/usr/share/locale/*' \\\n      'path-exclude=/usr/share/groff/*' \\\n      'path-exclude=/usr/share/lintian/*' \\\n      'path-exclude=/usr/share/zoneinfo/*' \\\n    \u003e /etc/dpkg/dpkg.cfg.d/01_nodoc\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 \u0026\u0026 \\\n\tapt-get clean \u0026\u0026 \\\n\trm -rf /var/lib/apt/lists/*\n\n# Strip out docs from debian.\nRUN rm -rf /usr/share/{doc,doc-base,info,lintian,man,groff,locale,zoneinfo}/*\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\n# While these binaries install generally useful supporting packages,\n# the specific versions are rarely what a user wants so there is no\n# point polluting the base image module with them.\n\nRUN set -eux; \\\n\tgo install golang.org/x/tools/cmd/goimports@latest; \\\n\tgo install golang.org/x/tools/gopls@latest; \\\n\tgo install mvdan.cc/gofumpt@latest; \\\n\tgo clean -cache -testcache -modcache\n\nENV GOTOOLCHAIN=auto\nENV SKETCH=1\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\" \u0026\u0026 \\\n    git config --global http.postBuffer 524288000\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",
@@ -53,24 +53,25 @@
 }HTTP/2.0 200 OK
 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: 2025-05-02T15:19:34Z
+Anthropic-Ratelimit-Input-Tokens-Remaining: 190000
+Anthropic-Ratelimit-Input-Tokens-Reset: 2025-05-03T20:06:21Z
 Anthropic-Ratelimit-Output-Tokens-Limit: 80000
 Anthropic-Ratelimit-Output-Tokens-Remaining: 80000
-Anthropic-Ratelimit-Output-Tokens-Reset: 2025-05-02T15:19:37Z
+Anthropic-Ratelimit-Output-Tokens-Reset: 2025-05-03T20:06:21Z
 Anthropic-Ratelimit-Requests-Limit: 4000
 Anthropic-Ratelimit-Requests-Remaining: 3999
-Anthropic-Ratelimit-Requests-Reset: 2025-05-02T15:19:33Z
+Anthropic-Ratelimit-Requests-Reset: 2025-05-03T20:06:17Z
 Anthropic-Ratelimit-Tokens-Limit: 280000
-Anthropic-Ratelimit-Tokens-Remaining: 280000
-Anthropic-Ratelimit-Tokens-Reset: 2025-05-02T15:19:34Z
+Anthropic-Ratelimit-Tokens-Remaining: 270000
+Anthropic-Ratelimit-Tokens-Reset: 2025-05-03T20:06:21Z
 Cf-Cache-Status: DYNAMIC
-Cf-Ray: 93987f601b9cfa49-SJC
+Cf-Ray: 93a260c73963ebe5-SJC
 Content-Type: application/json
-Date: Fri, 02 May 2025 15:19:37 GMT
-Request-Id: req_011CNivomtECfUSY6nN5zrZG
+Date: Sat, 03 May 2025 20:06:21 GMT
+Request-Id: req_011CNmCUtxU8oS2Gd3YzNEDL
 Server: cloudflare
+Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
 Via: 1.1 google
 X-Robots-Tag: none
 
-{"id":"msg_019V7Niskg5sqUbQpkoPZfb1","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"Based on the information provided, I can see this is a simple Go test project without any specific requirements beyond what's already included in the base Dockerfile template.\n\nThe base template already includes:\n1. Go development environment with tools like goimports, gopls, and gofumpt\n2. Basic utilities like git, jq, sqlite3, npm, nodejs, gh, ripgrep, fzf, python3, curl, and vim\n3. Configuration for Go modules and workspace\n\nSince this is a straightforward Go test project without any specialized requirements mentioned in the README, I don't need to add any extra commands.\n\nI'll call the dockerfile tool with minimal extra commands:"},{"type":"tool_use","id":"toolu_015pqf6bh7nyg1pevhXEU4W7","name":"dockerfile","input":{"extra_cmds":"RUN echo \"Setting up test project environment\" || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1203,"cache_read_input_tokens":0,"output_tokens":211}}
\ No newline at end of file
+{"id":"msg_01RxYVihrgWXEcmHserwp3sd","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"Based on the information provided, this appears to be a simple Go test project without any special requirements beyond what's already included in the template. The template already has a good setup for Go development with tools like goimports, gopls, and gofumpt.\n\nSince this is a straightforward Go project as indicated by the README.md, I'll call the dockerfile tool with minimal extra commands, as you suggested that straightforward environments don't need many additions."},{"type":"tool_use","id":"toolu_01Ldy4q7DcEkxkkamEzMkyTP","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":4,"cache_creation_input_tokens":1219,"cache_read_input_tokens":0,"output_tokens":162}}
\ No newline at end of file
diff --git a/dockerimg/testdata/testcreatedockerfile_empty_repo.dockerfile b/dockerimg/testdata/testcreatedockerfile_empty_repo.dockerfile
index cc73fbd..4b01973 100644
--- a/dockerimg/testdata/testcreatedockerfile_empty_repo.dockerfile
+++ b/dockerimg/testdata/testcreatedockerfile_empty_repo.dockerfile
@@ -4,18 +4,20 @@
 ARG GIT_USER_NAME
 
 RUN git config --global user.email "$GIT_USER_EMAIL" && \
-    git config --global user.name "$GIT_USER_NAME"
+    git config --global user.name "$GIT_USER_NAME" && \
+    git config --global http.postBuffer 524288000
 
-LABEL sketch_context="6f16c9b83fbd20e2eb242922989364954adb4905ab8c562baf2bc906ee347da5"
+LABEL sketch_context="7f08d4359542e0a924280791b6d7baae3480d3878b309e30eaf24d291b41e1df"
 COPY . /app
 
 WORKDIR /app
 RUN if [ -f go.mod ]; then go mod download; fi
 
-# Install any Python dependencies but continue if setup fails
-RUN if [ -f requirements.txt ]; then pip3 install -r requirements.txt || true; fi
+RUN set -eux; \
+    # Install any Python dependencies if applicable, continuing on failure
+    if [ -f requirements.txt ]; then pip3 install -r requirements.txt || true; fi
 
-# Ensure Go development tools are properly set up
-RUN go mod tidy || true
+# Ensure sketch binary is available
+RUN if [ ! -f /bin/sketch ]; then ln -s /app/sketch /bin/sketch || true; fi
 
 CMD ["/bin/sketch"]
diff --git a/dockerimg/testdata/testcreatedockerfile_empty_repo.httprr b/dockerimg/testdata/testcreatedockerfile_empty_repo.httprr
index 357047f..5bd7fd1 100644
--- a/dockerimg/testdata/testcreatedockerfile_empty_repo.httprr
+++ b/dockerimg/testdata/testcreatedockerfile_empty_repo.httprr
@@ -1,9 +1,9 @@
 httprr trace v1
-3362 1888
+3429 1877
 POST https://api.anthropic.com/v1/messages HTTP/1.1
 Host: api.anthropic.com
 User-Agent: Go-http-client/1.1
-Content-Length: 3165
+Content-Length: 3232
 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\n# attempt to keep package installs lean\nRUN printf '%s\\n' \\\n      'path-exclude=/usr/share/man/*' \\\n      'path-exclude=/usr/share/doc/*' \\\n      'path-exclude=/usr/share/doc-base/*' \\\n      'path-exclude=/usr/share/info/*' \\\n      'path-exclude=/usr/share/locale/*' \\\n      'path-exclude=/usr/share/groff/*' \\\n      'path-exclude=/usr/share/lintian/*' \\\n      'path-exclude=/usr/share/zoneinfo/*' \\\n    \u003e /etc/dpkg/dpkg.cfg.d/01_nodoc\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 \u0026\u0026 \\\n\tapt-get clean \u0026\u0026 \\\n\trm -rf /var/lib/apt/lists/*\n\n# Strip out docs from debian.\nRUN rm -rf /usr/share/{doc,doc-base,info,lintian,man,groff,locale,zoneinfo}/*\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\n# While these binaries install generally useful supporting packages,\n# the specific versions are rarely what a user wants so there is no\n# point polluting the base image module with them.\n\nRUN set -eux; \\\n\tgo install golang.org/x/tools/cmd/goimports@latest; \\\n\tgo install golang.org/x/tools/gopls@latest; \\\n\tgo install mvdan.cc/gofumpt@latest; \\\n\tgo clean -cache -testcache -modcache\n\nENV GOTOOLCHAIN=auto\nENV SKETCH=1\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"
+     "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\n# attempt to keep package installs lean\nRUN printf '%s\\n' \\\n      'path-exclude=/usr/share/man/*' \\\n      'path-exclude=/usr/share/doc/*' \\\n      'path-exclude=/usr/share/doc-base/*' \\\n      'path-exclude=/usr/share/info/*' \\\n      'path-exclude=/usr/share/locale/*' \\\n      'path-exclude=/usr/share/groff/*' \\\n      'path-exclude=/usr/share/lintian/*' \\\n      'path-exclude=/usr/share/zoneinfo/*' \\\n    \u003e /etc/dpkg/dpkg.cfg.d/01_nodoc\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 \u0026\u0026 \\\n\tapt-get clean \u0026\u0026 \\\n\trm -rf /var/lib/apt/lists/*\n\n# Strip out docs from debian.\nRUN rm -rf /usr/share/{doc,doc-base,info,lintian,man,groff,locale,zoneinfo}/*\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\n# While these binaries install generally useful supporting packages,\n# the specific versions are rarely what a user wants so there is no\n# point polluting the base image module with them.\n\nRUN set -eux; \\\n\tgo install golang.org/x/tools/cmd/goimports@latest; \\\n\tgo install golang.org/x/tools/gopls@latest; \\\n\tgo install mvdan.cc/gofumpt@latest; \\\n\tgo clean -cache -testcache -modcache\n\nENV GOTOOLCHAIN=auto\nENV SKETCH=1\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\" \u0026\u0026 \\\n    git config --global http.postBuffer 524288000\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",
@@ -49,24 +49,25 @@
 }HTTP/2.0 200 OK
 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: 2025-05-02T15:19:45Z
+Anthropic-Ratelimit-Input-Tokens-Remaining: 190000
+Anthropic-Ratelimit-Input-Tokens-Reset: 2025-05-03T20:06:35Z
 Anthropic-Ratelimit-Output-Tokens-Limit: 80000
 Anthropic-Ratelimit-Output-Tokens-Remaining: 80000
-Anthropic-Ratelimit-Output-Tokens-Reset: 2025-05-02T15:19:48Z
+Anthropic-Ratelimit-Output-Tokens-Reset: 2025-05-03T20:06:35Z
 Anthropic-Ratelimit-Requests-Limit: 4000
 Anthropic-Ratelimit-Requests-Remaining: 3999
-Anthropic-Ratelimit-Requests-Reset: 2025-05-02T15:19:44Z
+Anthropic-Ratelimit-Requests-Reset: 2025-05-03T20:06:31Z
 Anthropic-Ratelimit-Tokens-Limit: 280000
-Anthropic-Ratelimit-Tokens-Remaining: 280000
-Anthropic-Ratelimit-Tokens-Reset: 2025-05-02T15:19:45Z
+Anthropic-Ratelimit-Tokens-Remaining: 270000
+Anthropic-Ratelimit-Tokens-Reset: 2025-05-03T20:06:35Z
 Cf-Cache-Status: DYNAMIC
-Cf-Ray: 93987fa80b7efa49-SJC
+Cf-Ray: 93a2611bdd5cebe5-SJC
 Content-Type: application/json
-Date: Fri, 02 May 2025 15:19:48 GMT
-Request-Id: req_011CNivpd6RDj18bowpC9PQe
+Date: Sat, 03 May 2025 20:06:35 GMT
+Request-Id: req_011CNmCVuaxBi3NWMqvSxNyc
 Server: cloudflare
+Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
 Via: 1.1 google
 X-Robots-Tag: none
 
-{"id":"msg_01BVwJENcuAgvTqtvUgWTdw2","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 the template provided.\n\nSince this is primarily a Go project, I'll keep the extra commands minimal. I note that Python environment setup should be resilient to failures, and any apt-get install commands should continue even if packages can't be found."},{"type":"tool_use","id":"toolu_016HcFKHVaPTbDDDZ14wHMH9","name":"dockerfile","input":{"extra_cmds":"# Install any Python dependencies but continue if setup fails\nRUN if [ -f requirements.txt ]; then pip3 install -r requirements.txt || true; fi\n\n# Ensure Go development tools are properly set up\nRUN go mod tidy || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1159,"cache_read_input_tokens":0,"output_tokens":180}}
\ No newline at end of file
+{"id":"msg_01KUUe93HvhH27N4F7qcfE5e","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. Based on your instructions, I'll keep the extra commands minimal and focus on creating a Go development environment."},{"type":"tool_use","id":"toolu_01Pp6zm24cM3VSTNESr7FA37","name":"dockerfile","input":{"extra_cmds":"RUN set -eux; \\\n    # Install any Python dependencies if applicable, continuing on failure\n    if [ -f requirements.txt ]; then pip3 install -r requirements.txt || true; fi\n\n# Ensure sketch binary is available\nRUN if [ ! -f /bin/sketch ]; then ln -s /app/sketch /bin/sketch || true; fi"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1175,"cache_read_input_tokens":0,"output_tokens":173}}
\ 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 4ee9143..b8bc031 100644
--- a/dockerimg/testdata/testcreatedockerfile_mention_a_devtool_in_the_readme.dockerfile
+++ b/dockerimg/testdata/testcreatedockerfile_mention_a_devtool_in_the_readme.dockerfile
@@ -4,14 +4,18 @@
 ARG GIT_USER_NAME
 
 RUN git config --global user.email "$GIT_USER_EMAIL" && \
-    git config --global user.name "$GIT_USER_NAME"
+    git config --global user.name "$GIT_USER_NAME" && \
+    git config --global http.postBuffer 524288000
 
-LABEL sketch_context="7f3bb0ff41be88d7916a3757975c3adfd67f265d6e5dff4ca7d6486e93677d1c"
+LABEL sketch_context="7af343271500f08da1a4792a6f9a19f1f749495ee67d46ebc61917ca0f56ac1e"
 COPY . /app
 
 WORKDIR /app
 RUN if [ -f go.mod ]; then go mod download; fi
 
-RUN apt-get update && apt-get install -y graphviz || true
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends graphviz || true && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
 
 CMD ["/bin/sketch"]
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 d5c3085..e311b45 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
-3624 1535
+3691 1778
 POST https://api.anthropic.com/v1/messages HTTP/1.1
 Host: api.anthropic.com
 User-Agent: Go-http-client/1.1
-Content-Length: 3427
+Content-Length: 3494
 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\n# attempt to keep package installs lean\nRUN printf '%s\\n' \\\n      'path-exclude=/usr/share/man/*' \\\n      'path-exclude=/usr/share/doc/*' \\\n      'path-exclude=/usr/share/doc-base/*' \\\n      'path-exclude=/usr/share/info/*' \\\n      'path-exclude=/usr/share/locale/*' \\\n      'path-exclude=/usr/share/groff/*' \\\n      'path-exclude=/usr/share/lintian/*' \\\n      'path-exclude=/usr/share/zoneinfo/*' \\\n    \u003e /etc/dpkg/dpkg.cfg.d/01_nodoc\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 \u0026\u0026 \\\n\tapt-get clean \u0026\u0026 \\\n\trm -rf /var/lib/apt/lists/*\n\n# Strip out docs from debian.\nRUN rm -rf /usr/share/{doc,doc-base,info,lintian,man,groff,locale,zoneinfo}/*\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\n# While these binaries install generally useful supporting packages,\n# the specific versions are rarely what a user wants so there is no\n# point polluting the base image module with them.\n\nRUN set -eux; \\\n\tgo install golang.org/x/tools/cmd/goimports@latest; \\\n\tgo install golang.org/x/tools/gopls@latest; \\\n\tgo install mvdan.cc/gofumpt@latest; \\\n\tgo clean -cache -testcache -modcache\n\nENV GOTOOLCHAIN=auto\nENV SKETCH=1\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"
+     "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\n# attempt to keep package installs lean\nRUN printf '%s\\n' \\\n      'path-exclude=/usr/share/man/*' \\\n      'path-exclude=/usr/share/doc/*' \\\n      'path-exclude=/usr/share/doc-base/*' \\\n      'path-exclude=/usr/share/info/*' \\\n      'path-exclude=/usr/share/locale/*' \\\n      'path-exclude=/usr/share/groff/*' \\\n      'path-exclude=/usr/share/lintian/*' \\\n      'path-exclude=/usr/share/zoneinfo/*' \\\n    \u003e /etc/dpkg/dpkg.cfg.d/01_nodoc\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 \u0026\u0026 \\\n\tapt-get clean \u0026\u0026 \\\n\trm -rf /var/lib/apt/lists/*\n\n# Strip out docs from debian.\nRUN rm -rf /usr/share/{doc,doc-base,info,lintian,man,groff,locale,zoneinfo}/*\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\n# While these binaries install generally useful supporting packages,\n# the specific versions are rarely what a user wants so there is no\n# point polluting the base image module with them.\n\nRUN set -eux; \\\n\tgo install golang.org/x/tools/cmd/goimports@latest; \\\n\tgo install golang.org/x/tools/gopls@latest; \\\n\tgo install mvdan.cc/gofumpt@latest; \\\n\tgo clean -cache -testcache -modcache\n\nENV GOTOOLCHAIN=auto\nENV SKETCH=1\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\" \u0026\u0026 \\\n    git config --global http.postBuffer 524288000\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",
@@ -53,24 +53,25 @@
 }HTTP/2.0 200 OK
 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: 2025-05-02T15:19:42Z
+Anthropic-Ratelimit-Input-Tokens-Remaining: 193000
+Anthropic-Ratelimit-Input-Tokens-Reset: 2025-05-03T20:06:30Z
 Anthropic-Ratelimit-Output-Tokens-Limit: 80000
 Anthropic-Ratelimit-Output-Tokens-Remaining: 80000
-Anthropic-Ratelimit-Output-Tokens-Reset: 2025-05-02T15:19:44Z
+Anthropic-Ratelimit-Output-Tokens-Reset: 2025-05-03T20:06:30Z
 Anthropic-Ratelimit-Requests-Limit: 4000
 Anthropic-Ratelimit-Requests-Remaining: 3999
-Anthropic-Ratelimit-Requests-Reset: 2025-05-02T15:19:42Z
+Anthropic-Ratelimit-Requests-Reset: 2025-05-03T20:06:26Z
 Anthropic-Ratelimit-Tokens-Limit: 280000
-Anthropic-Ratelimit-Tokens-Remaining: 280000
-Anthropic-Ratelimit-Tokens-Reset: 2025-05-02T15:19:42Z
+Anthropic-Ratelimit-Tokens-Remaining: 273000
+Anthropic-Ratelimit-Tokens-Reset: 2025-05-03T20:06:30Z
 Cf-Cache-Status: DYNAMIC
-Cf-Ray: 93987f98ce95fa49-SJC
+Cf-Ray: 93a260fe9a2cebe5-SJC
 Content-Type: application/json
-Date: Fri, 02 May 2025 15:19:44 GMT
-Request-Id: req_011CNivpSeNGtDSvr5pG3t9V
+Date: Sat, 03 May 2025 20:06:30 GMT
+Request-Id: req_011CNmCVYqmyvDcUQxQTiunY
 Server: cloudflare
+Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
 Via: 1.1 google
 X-Robots-Tag: none
 
-{"id":"msg_019G9FgaD8T44eRFyv65ajws","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 readme.md content, I see that the project requires the `dot` tool to run tests."},{"type":"tool_use","id":"toolu_013DrCaeZahYQFz5sK52E9km","name":"dockerfile","input":{"extra_cmds":"RUN apt-get update && apt-get install -y graphviz || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1208,"cache_read_input_tokens":0,"output_tokens":108}}
\ No newline at end of file
+{"id":"msg_01NeNtYAFmukY75BuDHavYtx","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"Based on the provided context, I'll call the dockerfile tool to create a Dockerfile for this Go project.\n\nFrom the readme.md, I can see that the project requires the 'dot' utility, which is part of the Graphviz package."},{"type":"tool_use","id":"toolu_01BTcvvvkWy214k4tHEPn44d","name":"dockerfile","input":{"extra_cmds":"RUN apt-get update && \\\n    apt-get install -y --no-install-recommends graphviz || true && \\\n    apt-get clean && \\\n    rm -rf /var/lib/apt/lists/*"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1224,"cache_read_input_tokens":0,"output_tokens":160}}
\ No newline at end of file
diff --git a/dockerimg/testdata/testcreatedockerfile_python_misery.dockerfile b/dockerimg/testdata/testcreatedockerfile_python_misery.dockerfile
index c74aeb1..d7cd328 100644
--- a/dockerimg/testdata/testcreatedockerfile_python_misery.dockerfile
+++ b/dockerimg/testdata/testcreatedockerfile_python_misery.dockerfile
@@ -4,26 +4,22 @@
 ARG GIT_USER_NAME
 
 RUN git config --global user.email "$GIT_USER_EMAIL" && \
-    git config --global user.name "$GIT_USER_NAME"
+    git config --global user.name "$GIT_USER_NAME" && \
+    git config --global http.postBuffer 524288000
 
-LABEL sketch_context="00e8cee1c3621b40cc6b977430392a621b3d8dea06b12191c082f9bda155832b"
+LABEL sketch_context="2c865c897e88f0bc021007a21d2ed036f3918b5e8b9dbbd5708662980afb4ee6"
 COPY . /app
 
 WORKDIR /app
 RUN if [ -f go.mod ]; then go mod download; fi
 
-# Install Python 3.11 and set it up as the default python3
+# Install Python 3.11 and DVC as required by the project
 RUN apt-get update && \
     apt-get install -y --no-install-recommends python3.11 python3.11-venv python3-pip || true && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/*
 
-# Create symlink to make python3.11 the default python3
-RUN if [ -f /usr/bin/python3.11 ]; then \
-      update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.11 1; \
-    fi
-
-# Install dvc (Data Version Control) as mentioned in README
+# Install DVC
 RUN pip3 install dvc || true
 
 CMD ["/bin/sketch"]
diff --git a/dockerimg/testdata/testcreatedockerfile_python_misery.httprr b/dockerimg/testdata/testcreatedockerfile_python_misery.httprr
index 9143543..f00349c 100644
--- a/dockerimg/testdata/testcreatedockerfile_python_misery.httprr
+++ b/dockerimg/testdata/testcreatedockerfile_python_misery.httprr
@@ -1,9 +1,9 @@
 httprr trace v1
-3647 2204
+3714 1848
 POST https://api.anthropic.com/v1/messages HTTP/1.1
 Host: api.anthropic.com
 User-Agent: Go-http-client/1.1
-Content-Length: 3450
+Content-Length: 3517
 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\n# attempt to keep package installs lean\nRUN printf '%s\\n' \\\n      'path-exclude=/usr/share/man/*' \\\n      'path-exclude=/usr/share/doc/*' \\\n      'path-exclude=/usr/share/doc-base/*' \\\n      'path-exclude=/usr/share/info/*' \\\n      'path-exclude=/usr/share/locale/*' \\\n      'path-exclude=/usr/share/groff/*' \\\n      'path-exclude=/usr/share/lintian/*' \\\n      'path-exclude=/usr/share/zoneinfo/*' \\\n    \u003e /etc/dpkg/dpkg.cfg.d/01_nodoc\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 \u0026\u0026 \\\n\tapt-get clean \u0026\u0026 \\\n\trm -rf /var/lib/apt/lists/*\n\n# Strip out docs from debian.\nRUN rm -rf /usr/share/{doc,doc-base,info,lintian,man,groff,locale,zoneinfo}/*\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\n# While these binaries install generally useful supporting packages,\n# the specific versions are rarely what a user wants so there is no\n# point polluting the base image module with them.\n\nRUN set -eux; \\\n\tgo install golang.org/x/tools/cmd/goimports@latest; \\\n\tgo install golang.org/x/tools/gopls@latest; \\\n\tgo install mvdan.cc/gofumpt@latest; \\\n\tgo clean -cache -testcache -modcache\n\nENV GOTOOLCHAIN=auto\nENV SKETCH=1\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"
+     "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\n# attempt to keep package installs lean\nRUN printf '%s\\n' \\\n      'path-exclude=/usr/share/man/*' \\\n      'path-exclude=/usr/share/doc/*' \\\n      'path-exclude=/usr/share/doc-base/*' \\\n      'path-exclude=/usr/share/info/*' \\\n      'path-exclude=/usr/share/locale/*' \\\n      'path-exclude=/usr/share/groff/*' \\\n      'path-exclude=/usr/share/lintian/*' \\\n      'path-exclude=/usr/share/zoneinfo/*' \\\n    \u003e /etc/dpkg/dpkg.cfg.d/01_nodoc\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 \u0026\u0026 \\\n\tapt-get clean \u0026\u0026 \\\n\trm -rf /var/lib/apt/lists/*\n\n# Strip out docs from debian.\nRUN rm -rf /usr/share/{doc,doc-base,info,lintian,man,groff,locale,zoneinfo}/*\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\n# While these binaries install generally useful supporting packages,\n# the specific versions are rarely what a user wants so there is no\n# point polluting the base image module with them.\n\nRUN set -eux; \\\n\tgo install golang.org/x/tools/cmd/goimports@latest; \\\n\tgo install golang.org/x/tools/gopls@latest; \\\n\tgo install mvdan.cc/gofumpt@latest; \\\n\tgo clean -cache -testcache -modcache\n\nENV GOTOOLCHAIN=auto\nENV SKETCH=1\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\" \u0026\u0026 \\\n    git config --global http.postBuffer 524288000\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 +54,24 @@
 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: 2025-05-02T15:19:49Z
+Anthropic-Ratelimit-Input-Tokens-Reset: 2025-05-03T20:06:36Z
 Anthropic-Ratelimit-Output-Tokens-Limit: 80000
 Anthropic-Ratelimit-Output-Tokens-Remaining: 80000
-Anthropic-Ratelimit-Output-Tokens-Reset: 2025-05-02T15:19:54Z
+Anthropic-Ratelimit-Output-Tokens-Reset: 2025-05-03T20:06:39Z
 Anthropic-Ratelimit-Requests-Limit: 4000
 Anthropic-Ratelimit-Requests-Remaining: 3999
-Anthropic-Ratelimit-Requests-Reset: 2025-05-02T15:19:48Z
+Anthropic-Ratelimit-Requests-Reset: 2025-05-03T20:06:35Z
 Anthropic-Ratelimit-Tokens-Limit: 280000
 Anthropic-Ratelimit-Tokens-Remaining: 280000
-Anthropic-Ratelimit-Tokens-Reset: 2025-05-02T15:19:49Z
+Anthropic-Ratelimit-Tokens-Reset: 2025-05-03T20:06:36Z
 Cf-Cache-Status: DYNAMIC
-Cf-Ray: 93987fc0dcdffa49-SJC
+Cf-Ray: 93a26136fa09ebe5-SJC
 Content-Type: application/json
-Date: Fri, 02 May 2025 15:19:54 GMT
-Request-Id: req_011CNivpvC56P95w34tCaZfB
+Date: Sat, 03 May 2025 20:06:39 GMT
+Request-Id: req_011CNmCWDQm7zK9TciqurBV4
 Server: cloudflare
+Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
 Via: 1.1 google
 X-Robots-Tag: none
 
-{"id":"msg_013FvNnsCNS4n2CLHrzDmAdn","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"I'll help you create a Dockerfile with the appropriate extra commands based on the repository context provided.\n\nFrom the README.md, I can see that this project requires Python 3.11 and the dvc tool. Since Python 3.11 isn't installed by default (the base image only has Python3), and dvc is needed, I'll add these to the extra commands."},{"type":"tool_use","id":"toolu_0151KLaWj8jMedcxHGLsrD39","name":"dockerfile","input":{"extra_cmds":"# Install Python 3.11 and set it up as the default python3\nRUN apt-get update && \\\n    apt-get install -y --no-install-recommends python3.11 python3.11-venv python3-pip || true && \\\n    apt-get clean && \\\n    rm -rf /var/lib/apt/lists/*\n\n# Create symlink to make python3.11 the default python3\nRUN if [ -f /usr/bin/python3.11 ]; then \\\n      update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.11 1; \\\n    fi\n\n# Install dvc (Data Version Control) as mentioned in README\nRUN pip3 install dvc || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1215,"cache_read_input_tokens":0,"output_tokens":317}}
\ No newline at end of file
+{"id":"msg_01HHhhjvH5vBKcwHxnwSdxNC","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"Based on the information provided, I'll call the dockerfile tool to create a Dockerfile for this Go project that also requires Python 3.11 and the DVC tool."},{"type":"tool_use","id":"toolu_01GaiUwYsE5GqghXtVaQBZ6k","name":"dockerfile","input":{"extra_cmds":"# Install Python 3.11 and DVC as required by the project\nRUN apt-get update && \\\n    apt-get install -y --no-install-recommends python3.11 python3.11-venv python3-pip || true && \\\n    apt-get clean && \\\n    rm -rf /var/lib/apt/lists/*\n\n# Install DVC\nRUN pip3 install dvc || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1231,"cache_read_input_tokens":0,"output_tokens":190}}
\ 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 cdf023e..c6aaa88 100644
--- a/dockerimg/testdata/testcreatedockerfile_repo_with_readme_and_workflow.dockerfile
+++ b/dockerimg/testdata/testcreatedockerfile_repo_with_readme_and_workflow.dockerfile
@@ -4,18 +4,19 @@
 ARG GIT_USER_NAME
 
 RUN git config --global user.email "$GIT_USER_EMAIL" && \
-    git config --global user.name "$GIT_USER_NAME"
+    git config --global user.name "$GIT_USER_NAME" && \
+    git config --global http.postBuffer 524288000
 
-LABEL sketch_context="ff4ffb8b67de82930fc2bae9297a8d3fdf4593f64a2a050a58a279d77b65deb8"
+LABEL sketch_context="c07d7ee5f43192e235d71ecc6f1579b74bb669f20482e4768b86edd06b59271a"
 COPY . /app
 
 WORKDIR /app
 RUN if [ -f go.mod ]; then go mod download; fi
 
-# Install Node.js 18 and enable corepack as used in GitHub workflow
-RUN npm install -g corepack && corepack enable
+# Install Node.js specific tools based on workflow file
+RUN npm install -g corepack && corepack enable || true
 
-# If Python packages are needed, make it fault-tolerant
-RUN pip3 install -r requirements.txt 2>/dev/null || true
+# Run tests to verify setup
+RUN if [ -f go.mod ]; then go test ./... || true; fi
 
 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 3c59878..c5772e9 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
-4096 1854
+4163 1913
 POST https://api.anthropic.com/v1/messages HTTP/1.1
 Host: api.anthropic.com
 User-Agent: Go-http-client/1.1
-Content-Length: 3899
+Content-Length: 3966
 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\n# attempt to keep package installs lean\nRUN printf '%s\\n' \\\n      'path-exclude=/usr/share/man/*' \\\n      'path-exclude=/usr/share/doc/*' \\\n      'path-exclude=/usr/share/doc-base/*' \\\n      'path-exclude=/usr/share/info/*' \\\n      'path-exclude=/usr/share/locale/*' \\\n      'path-exclude=/usr/share/groff/*' \\\n      'path-exclude=/usr/share/lintian/*' \\\n      'path-exclude=/usr/share/zoneinfo/*' \\\n    \u003e /etc/dpkg/dpkg.cfg.d/01_nodoc\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 \u0026\u0026 \\\n\tapt-get clean \u0026\u0026 \\\n\trm -rf /var/lib/apt/lists/*\n\n# Strip out docs from debian.\nRUN rm -rf /usr/share/{doc,doc-base,info,lintian,man,groff,locale,zoneinfo}/*\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\n# While these binaries install generally useful supporting packages,\n# the specific versions are rarely what a user wants so there is no\n# point polluting the base image module with them.\n\nRUN set -eux; \\\n\tgo install golang.org/x/tools/cmd/goimports@latest; \\\n\tgo install golang.org/x/tools/gopls@latest; \\\n\tgo install mvdan.cc/gofumpt@latest; \\\n\tgo clean -cache -testcache -modcache\n\nENV GOTOOLCHAIN=auto\nENV SKETCH=1\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"
+     "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\n# attempt to keep package installs lean\nRUN printf '%s\\n' \\\n      'path-exclude=/usr/share/man/*' \\\n      'path-exclude=/usr/share/doc/*' \\\n      'path-exclude=/usr/share/doc-base/*' \\\n      'path-exclude=/usr/share/info/*' \\\n      'path-exclude=/usr/share/locale/*' \\\n      'path-exclude=/usr/share/groff/*' \\\n      'path-exclude=/usr/share/lintian/*' \\\n      'path-exclude=/usr/share/zoneinfo/*' \\\n    \u003e /etc/dpkg/dpkg.cfg.d/01_nodoc\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 \u0026\u0026 \\\n\tapt-get clean \u0026\u0026 \\\n\trm -rf /var/lib/apt/lists/*\n\n# Strip out docs from debian.\nRUN rm -rf /usr/share/{doc,doc-base,info,lintian,man,groff,locale,zoneinfo}/*\n\nENV PATH=\"$GOPATH/bin:$PATH\"\n\n# While these binaries install generally useful supporting packages,\n# the specific versions are rarely what a user wants so there is no\n# point polluting the base image module with them.\n\nRUN set -eux; \\\n\tgo install golang.org/x/tools/cmd/goimports@latest; \\\n\tgo install golang.org/x/tools/gopls@latest; \\\n\tgo install mvdan.cc/gofumpt@latest; \\\n\tgo clean -cache -testcache -modcache\n\nENV GOTOOLCHAIN=auto\nENV SKETCH=1\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\" \u0026\u0026 \\\n    git config --global http.postBuffer 524288000\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",
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-{"id":"msg_01RMczznwyZwbXobUNi2aWob","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"Based on the information provided, I can see that this is primarily a Go project with some Node.js dependencies. The GitHub workflow shows that it uses corepack with Node.js 18, which I should include in the Dockerfile.\n\nLet me call the dockerfile tool with the appropriate extra commands:"},{"type":"tool_use","id":"toolu_01QEn5kV9x8m5je2aiUsTnVA","name":"dockerfile","input":{"extra_cmds":"# Install Node.js 18 and enable corepack as used in GitHub workflow\nRUN npm install -g corepack && corepack enable\n\n# If Python packages are needed, make it fault-tolerant\nRUN pip3 install -r requirements.txt 2>/dev/null || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1332,"cache_read_input_tokens":0,"output_tokens":185}}
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+{"id":"msg_01DpXSDZUt7e9am5pe4DnmqJ","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 provided information, I can see this is primarily a Go project with some Node.js dependencies (as evidenced by the GitHub workflow that sets up Node.js 18 and enables corepack).\n\nLet me call the dockerfile tool with appropriate extra commands:"},{"type":"tool_use","id":"toolu_01DNdiwPCHdCyD1SPAZwEoiq","name":"dockerfile","input":{"extra_cmds":"# Install Node.js specific tools based on workflow file\nRUN npm install -g corepack && corepack enable || true\n\n# Run tests to verify setup\nRUN if [ -f go.mod ]; then go test ./... || true; fi"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1348,"cache_read_input_tokens":0,"output_tokens":181}}
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