diff --git a/dockerimg/createdockerfile.go b/dockerimg/createdockerfile.go
index 7178b94..a9e8738 100644
--- a/dockerimg/createdockerfile.go
+++ b/dockerimg/createdockerfile.go
@@ -22,13 +22,29 @@
 	for _, path := range slices.Sorted(maps.Keys(initFiles)) {
 		fmt.Fprintf(h, "%s\n%s\n\n", path, initFiles[path])
 	}
-	fmt.Fprintf(h, "docker template\n%s\n", dockerfileBase)
+	fmt.Fprintf(h, "docker template 1\n%s\n", dockerfileCustomTmpl)
+	fmt.Fprintf(h, "docker template 2\n%s\n", dockerfileDefaultTmpl)
 	return hex.EncodeToString(h.Sum(nil))
 }
 
+// DefaultImage is intended to ONLY be used by the pushdockerimg.go script.
+func DefaultImage() (name, dockerfile, hash string) {
+	buf := new(bytes.Buffer)
+	err := template.Must(template.New("dockerfile").Parse(dockerfileBaseTmpl)).Execute(buf, map[string]string{
+		"From": defaultBaseImg,
+	})
+	if err != nil {
+		panic(err)
+	}
+	return dockerfileDefaultImg, buf.String(), hashInitFiles(nil)
+}
+
+const dockerfileDefaultImg = "ghcr.io/boldsoftware/sketch:v1"
+const defaultBaseImg = "golang:1.24.2-alpine3.21"
+
 // TODO: add semgrep, prettier -- they require node/npm/etc which is more complicated than apk
 // If/when we do this, add them into the list of available tools in bash.go.
-const dockerfileBase = `FROM {{.From}}
+const dockerfileBaseTmpl = `FROM {{.From}}
 
 RUN apk add bash git make jq sqlite gcc musl-dev linux-headers npm nodejs go github-cli ripgrep fzf python3 curl vim
 
@@ -41,9 +57,9 @@
 RUN go install mvdan.cc/gofumpt@latest
 
 RUN mkdir -p /root/.cache/sketch/webui
+`
 
-{{.ExtraCmds}}
-
+const dockerfileFragment = `
 ARG GIT_USER_EMAIL
 ARG GIT_USER_NAME
 
@@ -56,7 +72,18 @@
 WORKDIR /app{{.SubDir}}
 RUN if [ -f go.mod ]; then go mod download; fi
 
-CMD ["/bin/sketch"]`
+{{.ExtraCmds}}
+
+CMD ["/bin/sketch"]
+`
+
+// dockerfileCustomTmpl is the dockerfile template used when the LLM
+// chooses a custom base image.
+const dockerfileCustomTmpl = dockerfileBaseTmpl + dockerfileFragment
+
+// dockerfileDefaultTmpl is the dockerfile used when the LLM went with
+// the defaultBaseImg. In this case, we use a pre-canned image.
+const dockerfileDefaultTmpl = "FROM " + dockerfileDefaultImg + "\n" + dockerfileFragment
 
 // createDockerfile creates a Dockerfile for a git repo.
 // It expects the relevant initFiles to have been provided.
@@ -136,10 +163,10 @@
 The parameters to dockerfile fill out the From and ExtraCmds
 template variables in the following Go template:
 
-` + "```\n" + dockerfileBase + "\n```" + `
+` + "```\n" + dockerfileCustomTmpl + "\n```" + `
 
 In particular:
-- Assume it is primarily a Go project. For a minimal env, prefer 1.24.2-alpine3.21 as a base image.
+- Assume it is primarily a Go project. For a minimal env, prefer ` + defaultBaseImg + ` as a base image.
 - If any python is needed at all, switch to using a python alpine image as a the base and apk add go.
   Favor using uv, and use one of these base images, depending on the preferred python version:
     ghcr.io/astral-sh/uv:python3.13-alpine
@@ -149,7 +176,8 @@
 - 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.
 - Include any tools particular to this repository that can be inferred from the given context.
 - Append || true to any apk add commands in case the package does not exist.
-- Do not expose any ports.
+- Do NOT expose any ports.
+- Do NOT generate any CMD or ENTRYPOINT extra commands.
 `,
 		}},
 	}
@@ -181,8 +209,16 @@
 		return "", fmt.Errorf("no dockerfile returned")
 	}
 
+	tmpl := dockerfileCustomTmpl
+	if dockerfileFROM == defaultBaseImg {
+		// Because the LLM has chosen the image we recommended, we
+		// can use a pre-canned image of our entire template, which
+		// saves a lot of build time.
+		tmpl = dockerfileDefaultTmpl
+	}
+
 	buf := new(bytes.Buffer)
-	err = template.Must(template.New("dockerfile").Parse(dockerfileBase)).Execute(buf, map[string]string{
+	err = template.Must(template.New("dockerfile").Parse(tmpl)).Execute(buf, map[string]string{
 		"From":          dockerfileFROM,
 		"ExtraCmds":     dockerfileExtraCmds,
 		"InitFilesHash": hashInitFiles(initFiles),
diff --git a/dockerimg/dockerimg_test.go b/dockerimg/dockerimg_test.go
index cef5173..f9155c4 100644
--- a/dockerimg/dockerimg_test.go
+++ b/dockerimg/dockerimg_test.go
@@ -2,10 +2,12 @@
 
 import (
 	"context"
+	"encoding/json"
 	"flag"
 	"io/fs"
 	"net/http"
 	"os"
+	"os/exec"
 	"strings"
 	"testing"
 	"testing/fstest"
@@ -191,3 +193,40 @@
 		t.Errorf("Workflow file has incorrect content: %q", content)
 	}
 }
+
+// TestDockerHashIsPushed ensures that any changes made to the
+// dockerfile template have been pushed to the default image.
+func TestDockerHashIsPushed(t *testing.T) {
+	name, _, hash := DefaultImage()
+
+	cmd := exec.Command("docker", "buildx", "imagetools", "inspect", name, "--raw")
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		t.Logf("command %v", cmd.Args)
+		t.Fatalf("failed to inspect docker image %s: %v: %s", name, err, out)
+	}
+
+	var config struct {
+		Annotations map[string]string `json:"annotations"`
+	}
+	if err := json.Unmarshal(out, &config); err != nil {
+		t.Fatal(err)
+	}
+	rev := config.Annotations["org.opencontainers.image.revision"]
+	if rev != hash {
+		t.Fatalf(`Currently released docker image %s does not match dockerfileCustomTmpl.
+
+Inspecting the docker image shows revision hash %s,
+but the current hash of dockerfileCustomTmpl is %s.
+
+This means the template constants in createdockerfile.go have been
+edited (e.g. defaultBaseImg or dockerfileBaseTmpl), but a new version
+of the public default docker image has not been built and pushed.
+
+To do so:
+
+	go run ./dockerimg/pushdockerimg.go
+
+`, name, rev, hash)
+	}
+}
diff --git a/dockerimg/pushdockerimg.go b/dockerimg/pushdockerimg.go
new file mode 100644
index 0000000..2647626
--- /dev/null
+++ b/dockerimg/pushdockerimg.go
@@ -0,0 +1,62 @@
+//go:build ignore
+// +build ignore
+
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+
+	"sketch.dev/dockerimg"
+)
+
+func main() {
+	dir, err := os.MkdirTemp("", "sketch-pushdockerimg-*")
+	if err != nil {
+		panic(err)
+	}
+	defer os.RemoveAll(dir)
+
+	name, dockerfile, hash := dockerimg.DefaultImage()
+	if err := os.WriteFile(filepath.Join(dir, "Dockerfile"), []byte(dockerfile), 0o666); err != nil {
+		panic(err)
+	}
+
+	fmt.Print(`NOTE: this requires:
+	brew install colima docker docker-buildx qemu
+	gh auth token | docker login ghcr.io -u $(gh api user --jq .login) --password-stdin
+`)
+
+	run := func(args ...string) {
+		cmd := exec.Command(args[0], args[1:]...)
+		cmd.Dir = dir
+		cmd.Stdout = os.Stdout
+		cmd.Stderr = os.Stderr
+		fmt.Printf("running %v\n", cmd.Args)
+		if err := cmd.Run(); err != nil {
+			panic(err)
+		}
+	}
+
+	run("colima", "start")
+	run("docker", "buildx", "create", "--name", "arm", "--use", "--driver", "docker-container", "--bootstrap")
+	run("docker", "buildx", "use", "arm")
+	run("docker", "buildx", "build", "--platform", "linux/arm64", "-t", name+"arm64", "--push", ".")
+	run("docker", "buildx", "rm", "arm")
+	run("colima", "start", "--profile=intel", "--arch=x86_64", "--vm-type=vz", "--vz-rosetta", "--memory=4", "--disk=15")
+	run("docker", "context", "use", "colima-intel")
+	run("docker", "buildx", "create", "--name", "intel", "--use", "--driver", "docker-container", "--bootstrap")
+	run("docker", "buildx", "use", "intel")
+	run("docker", "buildx", "build", "--platform", "linux/amd64", "-t", name+"amd64", "--push", ".")
+	run("docker", "buildx", "rm", "intel")
+	run("docker", "context", "use", "colima")
+	run("colima", "stop", "--profile=intel")
+	run(
+		"docker", "buildx", "imagetools", "create",
+		"--annotation", "index:org.opencontainers.image.revision="+hash,
+		"-t", name, name+"arm64", name+"amd64",
+	)
+	run("docker", "buildx", "imagetools", "inspect", name)
+}
diff --git a/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.dockerfile b/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.dockerfile
index b5fe12f..42b20f2 100644
--- a/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.dockerfile
+++ b/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.dockerfile
@@ -1,18 +1,4 @@
-FROM golang:1.24.2-alpine3.21
-
-RUN apk add bash git make jq sqlite gcc musl-dev linux-headers npm nodejs go github-cli ripgrep fzf python3 curl vim
-
-ENV GOTOOLCHAIN=auto
-ENV GOPATH=/go
-ENV PATH="$GOPATH/bin:$PATH"
-
-RUN go install golang.org/x/tools/cmd/goimports@latest
-RUN go install golang.org/x/tools/gopls@latest
-RUN go install mvdan.cc/gofumpt@latest
-
-RUN mkdir -p /root/.cache/sketch/webui
-
-RUN apk add --no-cache build-base || true
+FROM ghcr.io/boldsoftware/sketch:v1
 
 ARG GIT_USER_EMAIL
 ARG GIT_USER_NAME
@@ -20,10 +6,12 @@
 RUN git config --global user.email "$GIT_USER_EMAIL" && \
     git config --global user.name "$GIT_USER_NAME"
 
-LABEL sketch_context="f20a1b665182f3a8a94fe3e1e2042ee1d820fe00af69c72989146e26de9569ba"
+LABEL sketch_context="c94b5070bcccf737554bc3e44eea559cf127c86b33d80218f3a1689411fab529"
 COPY . /app
 
 WORKDIR /app
 RUN if [ -f go.mod ]; then go mod download; fi
 
-CMD ["/bin/sketch"]
\ No newline at end of file
+RUN apk add --no-cache build-base || true
+
+CMD ["/bin/sketch"]
diff --git a/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.httprr b/dockerimg/testdata/testcreatedockerfile_basic_repo_with_readme.httprr
index 5f2345c..6536859 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
-3096 1592
+3162 1575
 POST https://api.anthropic.com/v1/messages HTTP/1.1
 Host: api.anthropic.com
 User-Agent: Go-http-client/1.1
-Content-Length: 2899
+Content-Length: 2965
 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 {{.From}}\n\nRUN apk add bash git make jq sqlite gcc musl-dev linux-headers npm nodejs go github-cli ripgrep fzf python3 curl vim\n\nENV GOTOOLCHAIN=auto\nENV GOPATH=/go\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\nRUN mkdir -p /root/.cache/sketch/webui\n\n{{.ExtraCmds}}\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\nCMD [\"/bin/sketch\"]\n```\n\nIn particular:\n- Assume it is primarily a Go project. For a minimal env, prefer 1.24.2-alpine3.21 as a base image.\n- If any python is needed at all, switch to using a python alpine image as a the base and apk add go.\n  Favor using uv, and use one of these base images, depending on the preferred python version:\n    ghcr.io/astral-sh/uv:python3.13-alpine\n    ghcr.io/astral-sh/uv:python3.12-alpine\n    ghcr.io/astral-sh/uv:python3.11-alpine\n- When using pip to install packages, use: uv pip install --system.\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 apk add commands in case the package does not exist.\n- Do not expose any ports.\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 {{.From}}\n\nRUN apk add bash git make jq sqlite gcc musl-dev linux-headers npm nodejs go github-cli ripgrep fzf python3 curl vim\n\nENV GOTOOLCHAIN=auto\nENV GOPATH=/go\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\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. For a minimal env, prefer golang:1.24.2-alpine3.21 as a base image.\n- If any python is needed at all, switch to using a python alpine image as a the base and apk add go.\n  Favor using uv, and use one of these base images, depending on the preferred python version:\n    ghcr.io/astral-sh/uv:python3.13-alpine\n    ghcr.io/astral-sh/uv:python3.12-alpine\n    ghcr.io/astral-sh/uv:python3.11-alpine\n- When using pip to install packages, use: uv pip install --system.\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 apk add commands in case the package does not exist.\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",
@@ -59,23 +59,23 @@
 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: 2025-04-24T02:15:28Z
+Anthropic-Ratelimit-Input-Tokens-Reset: 2025-04-26T03:40:01Z
 Anthropic-Ratelimit-Output-Tokens-Limit: 80000
 Anthropic-Ratelimit-Output-Tokens-Remaining: 80000
-Anthropic-Ratelimit-Output-Tokens-Reset: 2025-04-24T02:15:30Z
+Anthropic-Ratelimit-Output-Tokens-Reset: 2025-04-26T03:40:04Z
 Anthropic-Ratelimit-Requests-Limit: 4000
 Anthropic-Ratelimit-Requests-Remaining: 3999
-Anthropic-Ratelimit-Requests-Reset: 2025-04-24T02:15:26Z
+Anthropic-Ratelimit-Requests-Reset: 2025-04-26T03:39:59Z
 Anthropic-Ratelimit-Tokens-Limit: 280000
 Anthropic-Ratelimit-Tokens-Remaining: 280000
-Anthropic-Ratelimit-Tokens-Reset: 2025-04-24T02:15:28Z
+Anthropic-Ratelimit-Tokens-Reset: 2025-04-26T03:40:01Z
 Cf-Cache-Status: DYNAMIC
-Cf-Ray: 935217c86d0feb20-SJC
+Cf-Ray: 93630e5fcf7f172e-SJC
 Content-Type: application/json
-Date: Thu, 24 Apr 2025 02:15:30 GMT
-Request-Id: req_011CNSkYTfiTDQcmFtaZVJLQ
+Date: Sat, 26 Apr 2025 03:40:04 GMT
+Request-Id: req_011CNWecDCFGQ29B3Dn54Prg
 Server: cloudflare
 Via: 1.1 google
 X-Robots-Tag: none
 
-{"id":"msg_0147gKoEBcw5pqeZDsLtVmhX","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"I'll help you create a Dockerfile using the provided template. Based on the README.md content, this appears to be a simple Go test project with no specific Python requirements mentioned."},{"type":"tool_use","id":"toolu_01JcMU9U7yDJ3LWbt2xjtTTM","name":"dockerfile","input":{"from":"golang:1.24.2-alpine3.21","extra_cmds":"RUN apk add --no-cache build-base || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1030,"cache_read_input_tokens":0,"output_tokens":133}}
\ No newline at end of file
+{"id":"msg_01PX3ZVAkAydZ9xZRTYVAFb1","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 project without any Python requirements. I'll call the dockerfile tool with the appropriate parameters."},{"type":"tool_use","id":"toolu_01D6kPu7bZJDHKGizaiFLqru","name":"dockerfile","input":{"from":"golang:1.24.2-alpine3.21","extra_cmds":"RUN apk add --no-cache build-base || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1046,"cache_read_input_tokens":0,"output_tokens":126}}
\ No newline at end of file
diff --git a/dockerimg/testdata/testcreatedockerfile_empty_repo.dockerfile b/dockerimg/testdata/testcreatedockerfile_empty_repo.dockerfile
index 150bb76..b4ac299 100644
--- a/dockerimg/testdata/testcreatedockerfile_empty_repo.dockerfile
+++ b/dockerimg/testdata/testcreatedockerfile_empty_repo.dockerfile
@@ -1,29 +1,4 @@
-FROM golang:1.24.2-alpine3.21
-
-RUN apk add bash git make jq sqlite gcc musl-dev linux-headers npm nodejs go github-cli ripgrep fzf python3 curl vim
-
-ENV GOTOOLCHAIN=auto
-ENV GOPATH=/go
-ENV PATH="$GOPATH/bin:$PATH"
-
-RUN go install golang.org/x/tools/cmd/goimports@latest
-RUN go install golang.org/x/tools/gopls@latest
-RUN go install mvdan.cc/gofumpt@latest
-
-RUN mkdir -p /root/.cache/sketch/webui
-
-RUN apk add --no-cache ca-certificates && \
-    update-ca-certificates
-
-# Set up Go environment variables
-ENV CGO_ENABLED=1
-ENV GO111MODULE=on
-
-# Install any additional dependencies if needed
-RUN apk add --no-cache openssh-client || true
-
-# Create necessary directories
-RUN mkdir -p /root/.config/gh
+FROM ghcr.io/boldsoftware/sketch:v1
 
 ARG GIT_USER_EMAIL
 ARG GIT_USER_NAME
@@ -31,10 +6,14 @@
 RUN git config --global user.email "$GIT_USER_EMAIL" && \
     git config --global user.name "$GIT_USER_NAME"
 
-LABEL sketch_context="ecacc023382f310d25253734931f73bdfa48bd71cd92bd2c3ae1a6099ce5eb40"
+LABEL sketch_context="64e014c23327ab5d33f72661ff9322e1ae3f87ffc6daded9c7f68629cc8f34da"
 COPY . /app
 
 WORKDIR /app
 RUN if [ -f go.mod ]; then go mod download; fi
 
-CMD ["/bin/sketch"]
\ No newline at end of file
+RUN apk add --no-cache protoc protobuf-dev || true
+RUN go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
+RUN go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
+
+CMD ["/bin/sketch"]
diff --git a/dockerimg/testdata/testcreatedockerfile_empty_repo.httprr b/dockerimg/testdata/testcreatedockerfile_empty_repo.httprr
index c408812..536e132 100644
--- a/dockerimg/testdata/testcreatedockerfile_empty_repo.httprr
+++ b/dockerimg/testdata/testcreatedockerfile_empty_repo.httprr
@@ -1,9 +1,9 @@
 httprr trace v1
-2849 1885
+2915 1796
 POST https://api.anthropic.com/v1/messages HTTP/1.1
 Host: api.anthropic.com
 User-Agent: Go-http-client/1.1
-Content-Length: 2652
+Content-Length: 2718
 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 {{.From}}\n\nRUN apk add bash git make jq sqlite gcc musl-dev linux-headers npm nodejs go github-cli ripgrep fzf python3 curl vim\n\nENV GOTOOLCHAIN=auto\nENV GOPATH=/go\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\nRUN mkdir -p /root/.cache/sketch/webui\n\n{{.ExtraCmds}}\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\nCMD [\"/bin/sketch\"]\n```\n\nIn particular:\n- Assume it is primarily a Go project. For a minimal env, prefer 1.24.2-alpine3.21 as a base image.\n- If any python is needed at all, switch to using a python alpine image as a the base and apk add go.\n  Favor using uv, and use one of these base images, depending on the preferred python version:\n    ghcr.io/astral-sh/uv:python3.13-alpine\n    ghcr.io/astral-sh/uv:python3.12-alpine\n    ghcr.io/astral-sh/uv:python3.11-alpine\n- When using pip to install packages, use: uv pip install --system.\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 apk add commands in case the package does not exist.\n- Do not expose any ports.\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 {{.From}}\n\nRUN apk add bash git make jq sqlite gcc musl-dev linux-headers npm nodejs go github-cli ripgrep fzf python3 curl vim\n\nENV GOTOOLCHAIN=auto\nENV GOPATH=/go\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\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. For a minimal env, prefer golang:1.24.2-alpine3.21 as a base image.\n- If any python is needed at all, switch to using a python alpine image as a the base and apk add go.\n  Favor using uv, and use one of these base images, depending on the preferred python version:\n    ghcr.io/astral-sh/uv:python3.13-alpine\n    ghcr.io/astral-sh/uv:python3.12-alpine\n    ghcr.io/astral-sh/uv:python3.11-alpine\n- When using pip to install packages, use: uv pip install --system.\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 apk add commands in case the package does not exist.\n- Do NOT expose any ports.\n- Do NOT generate any CMD or ENTRYPOINT extra commands.\n"
     },
     {
      "type": "text",
@@ -55,23 +55,23 @@
 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: 2025-04-24T02:15:40Z
+Anthropic-Ratelimit-Input-Tokens-Reset: 2025-04-26T03:40:19Z
 Anthropic-Ratelimit-Output-Tokens-Limit: 80000
 Anthropic-Ratelimit-Output-Tokens-Remaining: 80000
-Anthropic-Ratelimit-Output-Tokens-Reset: 2025-04-24T02:15:43Z
+Anthropic-Ratelimit-Output-Tokens-Reset: 2025-04-26T03:40:24Z
 Anthropic-Ratelimit-Requests-Limit: 4000
 Anthropic-Ratelimit-Requests-Remaining: 3999
-Anthropic-Ratelimit-Requests-Reset: 2025-04-24T02:15:39Z
+Anthropic-Ratelimit-Requests-Reset: 2025-04-26T03:40:17Z
 Anthropic-Ratelimit-Tokens-Limit: 280000
 Anthropic-Ratelimit-Tokens-Remaining: 280000
-Anthropic-Ratelimit-Tokens-Reset: 2025-04-24T02:15:40Z
+Anthropic-Ratelimit-Tokens-Reset: 2025-04-26T03:40:19Z
 Cf-Cache-Status: DYNAMIC
-Cf-Ray: 935218176a7deb20-SJC
+Cf-Ray: 93630ed0fa52172e-SJC
 Content-Type: application/json
-Date: Thu, 24 Apr 2025 02:15:43 GMT
-Request-Id: req_011CNSkZPjMpbaJXmxLHYmuQ
+Date: Sat, 26 Apr 2025 03:40:24 GMT
+Request-Id: req_011CNWedYcpggjUWkBMhQQVQ
 Server: cloudflare
 Via: 1.1 google
 X-Robots-Tag: none
 
-{"id":"msg_01U8oUaxL2wYLdPXPLwq5Hwm","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"I'll create a Dockerfile based on your template and requirements. Since you mentioned this is primarily a Go project and no specific Python requirements were mentioned, I'll use the Go Alpine image as the base."},{"type":"tool_use","id":"toolu_01PckFFikshDSXVmd5o3fKwQ","name":"dockerfile","input":{"from":"golang:1.24.2-alpine3.21","extra_cmds":"RUN apk add --no-cache ca-certificates && \\\n    update-ca-certificates\n\n# Set up Go environment variables\nENV CGO_ENABLED=1\nENV GO111MODULE=on\n\n# Install any additional dependencies if needed\nRUN apk add --no-cache openssh-client || true\n\n# Create necessary directories\nRUN mkdir -p /root/.config/gh"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":990,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"output_tokens":209}}
\ No newline at end of file
+{"id":"msg_01PChHSQkt21DEvvMyJne1Xf","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"Based on your request, I'll call the dockerfile tool to create a Dockerfile for a Go project using golang:1.24.2-alpine3.21 as the base image. Since you haven't mentioned any Python requirements, I'll stick with the Go Alpine image as the base."},{"type":"tool_use","id":"toolu_017s6Lem8FXfK7uStmC8Ymby","name":"dockerfile","input":{"from":"golang:1.24.2-alpine3.21","extra_cmds":"RUN apk add --no-cache protoc protobuf-dev || true\nRUN go install google.golang.org/protobuf/cmd/protoc-gen-go@latest\nRUN go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1006,"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"output_tokens":212}}
\ 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 328e164..a55b6e8 100644
--- a/dockerimg/testdata/testcreatedockerfile_mention_a_devtool_in_the_readme.dockerfile
+++ b/dockerimg/testdata/testcreatedockerfile_mention_a_devtool_in_the_readme.dockerfile
@@ -1,18 +1,4 @@
-FROM golang:1.24.2-alpine3.21
-
-RUN apk add bash git make jq sqlite gcc musl-dev linux-headers npm nodejs go github-cli ripgrep fzf python3 curl vim
-
-ENV GOTOOLCHAIN=auto
-ENV GOPATH=/go
-ENV PATH="$GOPATH/bin:$PATH"
-
-RUN go install golang.org/x/tools/cmd/goimports@latest
-RUN go install golang.org/x/tools/gopls@latest
-RUN go install mvdan.cc/gofumpt@latest
-
-RUN mkdir -p /root/.cache/sketch/webui
-
-RUN apk add graphviz || true
+FROM ghcr.io/boldsoftware/sketch:v1
 
 ARG GIT_USER_EMAIL
 ARG GIT_USER_NAME
@@ -20,10 +6,12 @@
 RUN git config --global user.email "$GIT_USER_EMAIL" && \
     git config --global user.name "$GIT_USER_NAME"
 
-LABEL sketch_context="d8239a17f871092ba50cc68925458c106655b0741bc27d010b137e5bac79d871"
+LABEL sketch_context="5ddad5f1e105aea5cff88f638a4e2377a20797b71fe352a3d4361af3d2ec8411"
 COPY . /app
 
 WORKDIR /app
 RUN if [ -f go.mod ]; then go mod download; fi
 
-CMD ["/bin/sketch"]
\ No newline at end of file
+RUN apk add graphviz || true
+
+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 7fbbd24..280514f 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
-3111 1710
+3177 1635
 POST https://api.anthropic.com/v1/messages HTTP/1.1
 Host: api.anthropic.com
 User-Agent: Go-http-client/1.1
-Content-Length: 2914
+Content-Length: 2980
 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 {{.From}}\n\nRUN apk add bash git make jq sqlite gcc musl-dev linux-headers npm nodejs go github-cli ripgrep fzf python3 curl vim\n\nENV GOTOOLCHAIN=auto\nENV GOPATH=/go\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\nRUN mkdir -p /root/.cache/sketch/webui\n\n{{.ExtraCmds}}\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\nCMD [\"/bin/sketch\"]\n```\n\nIn particular:\n- Assume it is primarily a Go project. For a minimal env, prefer 1.24.2-alpine3.21 as a base image.\n- If any python is needed at all, switch to using a python alpine image as a the base and apk add go.\n  Favor using uv, and use one of these base images, depending on the preferred python version:\n    ghcr.io/astral-sh/uv:python3.13-alpine\n    ghcr.io/astral-sh/uv:python3.12-alpine\n    ghcr.io/astral-sh/uv:python3.11-alpine\n- When using pip to install packages, use: uv pip install --system.\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 apk add commands in case the package does not exist.\n- Do not expose any ports.\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 {{.From}}\n\nRUN apk add bash git make jq sqlite gcc musl-dev linux-headers npm nodejs go github-cli ripgrep fzf python3 curl vim\n\nENV GOTOOLCHAIN=auto\nENV GOPATH=/go\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\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. For a minimal env, prefer golang:1.24.2-alpine3.21 as a base image.\n- If any python is needed at all, switch to using a python alpine image as a the base and apk add go.\n  Favor using uv, and use one of these base images, depending on the preferred python version:\n    ghcr.io/astral-sh/uv:python3.13-alpine\n    ghcr.io/astral-sh/uv:python3.12-alpine\n    ghcr.io/astral-sh/uv:python3.11-alpine\n- When using pip to install packages, use: uv pip install --system.\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 apk add commands in case the package does not exist.\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",
@@ -59,23 +59,23 @@
 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: 2025-04-24T02:15:37Z
+Anthropic-Ratelimit-Input-Tokens-Reset: 2025-04-26T03:40:13Z
 Anthropic-Ratelimit-Output-Tokens-Limit: 80000
 Anthropic-Ratelimit-Output-Tokens-Remaining: 80000
-Anthropic-Ratelimit-Output-Tokens-Reset: 2025-04-24T02:15:39Z
+Anthropic-Ratelimit-Output-Tokens-Reset: 2025-04-26T03:40:17Z
 Anthropic-Ratelimit-Requests-Limit: 4000
 Anthropic-Ratelimit-Requests-Remaining: 3999
-Anthropic-Ratelimit-Requests-Reset: 2025-04-24T02:15:35Z
+Anthropic-Ratelimit-Requests-Reset: 2025-04-26T03:40:10Z
 Anthropic-Ratelimit-Tokens-Limit: 280000
 Anthropic-Ratelimit-Tokens-Remaining: 280000
-Anthropic-Ratelimit-Tokens-Reset: 2025-04-24T02:15:37Z
+Anthropic-Ratelimit-Tokens-Reset: 2025-04-26T03:40:13Z
 Cf-Cache-Status: DYNAMIC
-Cf-Ray: 935217fb1f86eb20-SJC
+Cf-Ray: 93630ea54f94172e-SJC
 Content-Type: application/json
-Date: Thu, 24 Apr 2025 02:15:39 GMT
-Request-Id: req_011CNSkZ4NXL9YNZ5ZVmUvne
+Date: Sat, 26 Apr 2025 03:40:17 GMT
+Request-Id: req_011CNWed2nCteDEZw5BUpZ17
 Server: cloudflare
 Via: 1.1 google
 X-Robots-Tag: none
 
-{"id":"msg_012CGFaPdXU2zZ81ai9epSmU","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"I'll create a Dockerfile for this project. Based on the readme.md content, I can see that the project requires the `dot` tool to run tests. The `dot` command is part of the Graphviz package. Since this is primarily a Go project with no specific Python requirements mentioned, I'll use the Go Alpine image as the base."},{"type":"tool_use","id":"toolu_012jj1jKkenvErY4D7i1Zyrc","name":"dockerfile","input":{"from":"golang:1.24.2-alpine3.21","extra_cmds":"RUN apk add graphviz || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1035,"cache_read_input_tokens":0,"output_tokens":166}}
\ No newline at end of file
+{"id":"msg_01JdMjSZXcotL2DwMzAEYDrQ","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, but it also requires the `dot` tool (GraphViz) according to the README. I'll create a Dockerfile using the Go Alpine image and add the necessary extra commands."},{"type":"tool_use","id":"toolu_01GipvH34jzbujRVMyjzguvB","name":"dockerfile","input":{"from":"golang:1.24.2-alpine3.21","extra_cmds":"RUN apk add graphviz || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1051,"cache_read_input_tokens":0,"output_tokens":146}}
\ No newline at end of file
diff --git a/dockerimg/testdata/testcreatedockerfile_python_misery.dockerfile b/dockerimg/testdata/testcreatedockerfile_python_misery.dockerfile
index e51c8cc..a3a96ee 100644
--- a/dockerimg/testdata/testcreatedockerfile_python_misery.dockerfile
+++ b/dockerimg/testdata/testcreatedockerfile_python_misery.dockerfile
@@ -12,26 +12,23 @@
 
 RUN mkdir -p /root/.cache/sketch/webui
 
-RUN apk add go || true
-
-# Install DVC as mentioned in README.md
-RUN uv pip install --system dvc || true
-
-# Set up Go environment since it's primarily a Go project
-ENV GOTOOLCHAIN=auto
-ENV GOPATH=/go
-ENV PATH="$GOPATH/bin:$PATH"
-
 ARG GIT_USER_EMAIL
 ARG GIT_USER_NAME
 
 RUN git config --global user.email "$GIT_USER_EMAIL" && \
     git config --global user.name "$GIT_USER_NAME"
 
-LABEL sketch_context="eab53f6f296061461bd8461cbd9a350cb6e6b57a1df1e8bcc902aa5306eba849"
+LABEL sketch_context="1e26552a9d39a0cdaacc7efdcb4d9dd0f94b2d041bb583c3214f0c02be93c89f"
 COPY . /app
 
 WORKDIR /app
 RUN if [ -f go.mod ]; then go mod download; fi
 
-CMD ["/bin/sketch"]
\ No newline at end of file
+RUN apk add go || true
+# Install DVC tool as mentioned in the README
+RUN uv pip install --system dvc || true
+
+# Ensure git is properly configured for DVC
+RUN git config --global init.defaultBranch main || true
+
+CMD ["/bin/sketch"]
diff --git a/dockerimg/testdata/testcreatedockerfile_python_misery.httprr b/dockerimg/testdata/testcreatedockerfile_python_misery.httprr
index 97bfc9f..28a4877 100644
--- a/dockerimg/testdata/testcreatedockerfile_python_misery.httprr
+++ b/dockerimg/testdata/testcreatedockerfile_python_misery.httprr
@@ -1,9 +1,9 @@
 httprr trace v1
-3134 1956
+3200 1922
 POST https://api.anthropic.com/v1/messages HTTP/1.1
 Host: api.anthropic.com
 User-Agent: Go-http-client/1.1
-Content-Length: 2937
+Content-Length: 3003
 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 {{.From}}\n\nRUN apk add bash git make jq sqlite gcc musl-dev linux-headers npm nodejs go github-cli ripgrep fzf python3 curl vim\n\nENV GOTOOLCHAIN=auto\nENV GOPATH=/go\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\nRUN mkdir -p /root/.cache/sketch/webui\n\n{{.ExtraCmds}}\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\nCMD [\"/bin/sketch\"]\n```\n\nIn particular:\n- Assume it is primarily a Go project. For a minimal env, prefer 1.24.2-alpine3.21 as a base image.\n- If any python is needed at all, switch to using a python alpine image as a the base and apk add go.\n  Favor using uv, and use one of these base images, depending on the preferred python version:\n    ghcr.io/astral-sh/uv:python3.13-alpine\n    ghcr.io/astral-sh/uv:python3.12-alpine\n    ghcr.io/astral-sh/uv:python3.11-alpine\n- When using pip to install packages, use: uv pip install --system.\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 apk add commands in case the package does not exist.\n- Do not expose any ports.\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 {{.From}}\n\nRUN apk add bash git make jq sqlite gcc musl-dev linux-headers npm nodejs go github-cli ripgrep fzf python3 curl vim\n\nENV GOTOOLCHAIN=auto\nENV GOPATH=/go\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\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. For a minimal env, prefer golang:1.24.2-alpine3.21 as a base image.\n- If any python is needed at all, switch to using a python alpine image as a the base and apk add go.\n  Favor using uv, and use one of these base images, depending on the preferred python version:\n    ghcr.io/astral-sh/uv:python3.13-alpine\n    ghcr.io/astral-sh/uv:python3.12-alpine\n    ghcr.io/astral-sh/uv:python3.11-alpine\n- When using pip to install packages, use: uv pip install --system.\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 apk add commands in case the package does not exist.\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",
@@ -59,23 +59,23 @@
 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: 2025-04-24T02:15:45Z
+Anthropic-Ratelimit-Input-Tokens-Reset: 2025-04-26T03:40:27Z
 Anthropic-Ratelimit-Output-Tokens-Limit: 80000
 Anthropic-Ratelimit-Output-Tokens-Remaining: 80000
-Anthropic-Ratelimit-Output-Tokens-Reset: 2025-04-24T02:15:48Z
+Anthropic-Ratelimit-Output-Tokens-Reset: 2025-04-26T03:40:31Z
 Anthropic-Ratelimit-Requests-Limit: 4000
 Anthropic-Ratelimit-Requests-Remaining: 3999
-Anthropic-Ratelimit-Requests-Reset: 2025-04-24T02:15:44Z
+Anthropic-Ratelimit-Requests-Reset: 2025-04-26T03:40:24Z
 Anthropic-Ratelimit-Tokens-Limit: 280000
 Anthropic-Ratelimit-Tokens-Remaining: 280000
-Anthropic-Ratelimit-Tokens-Reset: 2025-04-24T02:15:45Z
+Anthropic-Ratelimit-Tokens-Reset: 2025-04-26T03:40:27Z
 Cf-Cache-Status: DYNAMIC
-Cf-Ray: 935218327c4aeb20-SJC
+Cf-Ray: 93630efada3e172e-SJC
 Content-Type: application/json
-Date: Thu, 24 Apr 2025 02:15:48 GMT
-Request-Id: req_011CNSkZife6ktMXUEo9Zf57
+Date: Sat, 26 Apr 2025 03:40:31 GMT
+Request-Id: req_011CNWee3HzahdMgsQJW7Q7R
 Server: cloudflare
 Via: 1.1 google
 X-Robots-Tag: none
 
-{"id":"msg_0196AYdtoVipL1pzheYTGgst","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"I see you want to create a Dockerfile for a project that requires both Go and Python 3.11, along with the DVC tool mentioned in the README.md.\n\nBased on your requirements and the template provided, I'll create a Dockerfile using the Python 3.11 Alpine base image (since Python is needed) and include the necessary Go setup along with DVC."},{"type":"tool_use","id":"toolu_01Xu7YF3fW7fZwjmjrWCY2dQ","name":"dockerfile","input":{"from":"ghcr.io/astral-sh/uv:python3.11-alpine","extra_cmds":"RUN apk add go || true\n\n# Install DVC as mentioned in README.md\nRUN uv pip install --system dvc || true\n\n# Set up Go environment since it's primarily a Go project\nENV GOTOOLCHAIN=auto\nENV GOPATH=/go\nENV PATH=\"$GOPATH/bin:$PATH\""}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1042,"cache_read_input_tokens":0,"output_tokens":244}}
\ No newline at end of file
+{"id":"msg_01SPFxjWsJWMvuvJ69KFoCUm","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"Based on the README.md content, I can see that this project requires Python 3.11 and the DVC tool. Since the project needs Python specifically mentioned in the README, I'll use the Python Alpine image as the base instead of the Go image, and add Go as required.\n\nLet me call the dockerfile tool with the appropriate parameters:"},{"type":"tool_use","id":"toolu_01ETiNb6YT4Rzi7zkPYs6nPG","name":"dockerfile","input":{"from":"ghcr.io/astral-sh/uv:python3.11-alpine","extra_cmds":"RUN apk add go || true\n# Install DVC tool as mentioned in the README\nRUN uv pip install --system dvc || true\n\n# Ensure git is properly configured for DVC\nRUN git config --global init.defaultBranch main || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1058,"cache_read_input_tokens":0,"output_tokens":222}}
\ 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 554dd4a..244bf78 100644
--- a/dockerimg/testdata/testcreatedockerfile_repo_with_readme_and_workflow.dockerfile
+++ b/dockerimg/testdata/testcreatedockerfile_repo_with_readme_and_workflow.dockerfile
@@ -1,18 +1,4 @@
-FROM golang:1.24.2-alpine3.21
-
-RUN apk add bash git make jq sqlite gcc musl-dev linux-headers npm nodejs go github-cli ripgrep fzf python3 curl vim
-
-ENV GOTOOLCHAIN=auto
-ENV GOPATH=/go
-ENV PATH="$GOPATH/bin:$PATH"
-
-RUN go install golang.org/x/tools/cmd/goimports@latest
-RUN go install golang.org/x/tools/gopls@latest
-RUN go install mvdan.cc/gofumpt@latest
-
-RUN mkdir -p /root/.cache/sketch/webui
-
-RUN npm install -g corepack && corepack enable || true
+FROM ghcr.io/boldsoftware/sketch:v1
 
 ARG GIT_USER_EMAIL
 ARG GIT_USER_NAME
@@ -20,10 +6,13 @@
 RUN git config --global user.email "$GIT_USER_EMAIL" && \
     git config --global user.name "$GIT_USER_NAME"
 
-LABEL sketch_context="3e95953d80d7eb73175a05c7d1499dc9a0fc5e7afdbcc0ae59d26aafffa8eb66"
+LABEL sketch_context="a8fa928cd209a4990326ce7f0996bc72ce496d9fb09d69c6409923f6773285ec"
 COPY . /app
 
 WORKDIR /app
 RUN if [ -f go.mod ]; then go mod download; fi
 
-CMD ["/bin/sketch"]
\ No newline at end of file
+RUN npm install -g corepack || true
+RUN corepack enable || 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 76a6c9b..c56dcbf 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
-3583 1656
+3649 1636
 POST https://api.anthropic.com/v1/messages HTTP/1.1
 Host: api.anthropic.com
 User-Agent: Go-http-client/1.1
-Content-Length: 3386
+Content-Length: 3452
 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 {{.From}}\n\nRUN apk add bash git make jq sqlite gcc musl-dev linux-headers npm nodejs go github-cli ripgrep fzf python3 curl vim\n\nENV GOTOOLCHAIN=auto\nENV GOPATH=/go\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\nRUN mkdir -p /root/.cache/sketch/webui\n\n{{.ExtraCmds}}\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\nCMD [\"/bin/sketch\"]\n```\n\nIn particular:\n- Assume it is primarily a Go project. For a minimal env, prefer 1.24.2-alpine3.21 as a base image.\n- If any python is needed at all, switch to using a python alpine image as a the base and apk add go.\n  Favor using uv, and use one of these base images, depending on the preferred python version:\n    ghcr.io/astral-sh/uv:python3.13-alpine\n    ghcr.io/astral-sh/uv:python3.12-alpine\n    ghcr.io/astral-sh/uv:python3.11-alpine\n- When using pip to install packages, use: uv pip install --system.\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 apk add commands in case the package does not exist.\n- Do not expose any ports.\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 {{.From}}\n\nRUN apk add bash git make jq sqlite gcc musl-dev linux-headers npm nodejs go github-cli ripgrep fzf python3 curl vim\n\nENV GOTOOLCHAIN=auto\nENV GOPATH=/go\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\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. For a minimal env, prefer golang:1.24.2-alpine3.21 as a base image.\n- If any python is needed at all, switch to using a python alpine image as a the base and apk add go.\n  Favor using uv, and use one of these base images, depending on the preferred python version:\n    ghcr.io/astral-sh/uv:python3.13-alpine\n    ghcr.io/astral-sh/uv:python3.12-alpine\n    ghcr.io/astral-sh/uv:python3.11-alpine\n- When using pip to install packages, use: uv pip install --system.\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 apk add commands in case the package does not exist.\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",
@@ -63,23 +63,23 @@
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-Anthropic-Ratelimit-Output-Tokens-Reset: 2025-04-24T02:15:34Z
+Anthropic-Ratelimit-Output-Tokens-Reset: 2025-04-26T03:40:10Z
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 Anthropic-Ratelimit-Requests-Remaining: 3999
-Anthropic-Ratelimit-Requests-Reset: 2025-04-24T02:15:30Z
+Anthropic-Ratelimit-Requests-Reset: 2025-04-26T03:40:04Z
 Anthropic-Ratelimit-Tokens-Limit: 280000
 Anthropic-Ratelimit-Tokens-Remaining: 280000
-Anthropic-Ratelimit-Tokens-Reset: 2025-04-24T02:15:32Z
+Anthropic-Ratelimit-Tokens-Reset: 2025-04-26T03:40:07Z
 Cf-Cache-Status: DYNAMIC
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+Cf-Ray: 93630e7f3afa172e-SJC
 Content-Type: application/json
-Date: Thu, 24 Apr 2025 02:15:34 GMT
-Request-Id: req_011CNSkYjYCSstLxUA6ePfkx
+Date: Sat, 26 Apr 2025 03:40:10 GMT
+Request-Id: req_011CNWecah4z8NDFzAPMUtkx
 Server: cloudflare
 Via: 1.1 google
 X-Robots-Tag: none
 
-{"id":"msg_0124MFkarFzWiiD4ydBJEa87","type":"message","role":"assistant","model":"claude-3-7-sonnet-20250219","content":[{"type":"text","text":"I'll help you create a Dockerfile based on the template and the information provided. Since this appears to be primarily a Go project (as mentioned in the README and seen in the GitHub workflow), I'll use the Go Alpine image as the base."},{"type":"tool_use","id":"toolu_01WpcgvskbpGY6wQBa19Uwvm","name":"dockerfile","input":{"from":"golang:1.24.2-alpine3.21","extra_cmds":"RUN npm install -g corepack && corepack enable || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1159,"cache_read_input_tokens":0,"output_tokens":148}}
\ No newline at end of file
+{"id":"msg_01QqqfaLXy44TXUACAPm3t2M","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 and files, it seems to be primarily a Go project that also uses Node.js (as evidenced by the GitHub Actions workflow)."},{"type":"tool_use","id":"toolu_01RGeX34Njc5QUVCR2dH4EXy","name":"dockerfile","input":{"from":"golang:1.24.2-alpine3.21","extra_cmds":"RUN npm install -g corepack || true\nRUN corepack enable || true"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":4,"cache_creation_input_tokens":1175,"cache_read_input_tokens":0,"output_tokens":147}}
\ No newline at end of file