feat(pkg/floxenv): add Flox environment lifecycle management package

- Activate / Deactivate via flox activate --detach (with graceful SIGTERM→SIGKILL) - Non-privileged IsAlive process check with Linux /proc fallback - Dev-mode stub when flox is missing or FLOXENV_DEV_MODE=1 - Unit and integration tests Closes #16
2026-05-29 23:40:22 -07:00 · 2026-05-29 23:40:22 -07:00 · 163a3333d3
commit 163a3333d3
parent 3264f9fe66
24 changed files with 2740 additions and 20 deletions
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,17 @@
+# Go
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+*.test
+*.out
+vendor/
+# Flox
+.flox/
+# IDEs
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
--- a/README.md
+++ b/README.md
@ -1,32 +1,76 @@
-# ScobleClaw
+# floxenv

-Agentic engineering framework by **[Scott Scoble](https://scott.scoble.me)** — tools, workflows, and skills for building with AI agents.
+Go package for managing Flox environment lifecycles via `flox activate --detach`.

-## What Is ScobleClaw?
+## Features

-ScobleClaw is a monorepo for agentic engineering patterns used across Scott Scoble's open-source projects. It provides:
+- **Activate** — start a Flox environment and return an `envID` + PID.
+- **Deactivate** — graceful shutdown with `SIGTERM` then `SIGKILL` after a 10-second grace period.
+- **IsAlive** — lightweight, non-privileged process-existence check using zero-signal delivery.
+- **Dev-mode stub** — transparently falls back to a long-running shell command when `flox` is not installed (or when `FLOXENV_DEV_MODE=1` is set), useful for CI and local development.

- **Subagent dispatch** patterns for structured AI agent workflows
- **Skill-based development** with reusable, composable AI context modules
- **Provenance tracking** for auditable agent outputs and decisions
- **Cross-repo tooling** shared across Speckl, brand-site, beyond-the-prompt, and more
+## Installation

-## Projects
+```bash
+go get github.com/marcus/scobleclaw/pkg/floxenv
+```

-| Project | Description | Author |
-|---------|-------------|--------|
-| [Speckl](https://speckl.scoble.me) | Spec language compiler with embedded provenance | Scott Scoble |
-| [Brand Site](https://scott.scoble.me) | Professional speaker website | Scott Scoble |
-| [Beyond the Prompt](https://os.scoble.me/forgejo/sscoble/beyond-the-prompt) | Workshop: Lessons from building with Claude Code | Scott Scoble |
+## Usage

-## Author
+```go
+package main

-Created and maintained by **Scott Scoble** — builder, speaker, and AI agentics engineer.
+import (
+    "fmt"
+    "log"

- Website: [scott.scoble.me](https://scott.scoble.me)
- LinkedIn: [scottscoble](https://linkedin.com/in/scottscoble)
- GitHub: [sscoble](https://github.com/sscoble)
+    "github.com/marcus/scobleclaw/pkg/floxenv"
+)
+
+func main() {
+    r := floxenv.NewRegistry()
+
+    envID, pid, err := r.Activate("/path/to/env/.flox/env/manifest.toml")
+    if err != nil {
+        log.Fatal(err)
+    }
+    fmt.Printf("activated %s (pid %d)\n", envID, pid)
+
+    // later …
+    if err := r.Deactivate(envID, pid); err != nil {
+        log.Fatal(err)
+    }
+}
+```
+
+## Dev mode
+
+When the `flox` binary is absent, or when `FLOXENV_DEV_MODE=1` is set in the environment, the package runs a lightweight stub that forks a shell `sleep` process instead of invoking `flox activate`. This keeps dependent tests green in environments where Flox is not available.
+
+## Running tests
+
+Unit tests (uses the dev-mode stub):
+
+```bash
+go test ./pkg/floxenv
+```
+
+Integration tests (requires a working Flox installation):
+
+```bash
+go test -tags=integration ./pkg/floxenv
+```
+
+## API
+
+| Function | Signature | Description |
+|----------|-----------|-------------|
+| `NewRegistry` | `() *Registry` | Create a new registry, auto-detecting dev mode. |
+| `(*Registry) Activate` | `(manifestPath string) (envID string, pid int, err error)` | Activate a Flox environment. |
+| `(*Registry) Deactivate` | `(envID string, pid int) error` | Shutdown an active environment. |
+| `IsAlive` | `(pid int) bool` | Non-privileged process existence check. |
+| `(*Registry) List` | `() []Info` | Snapshot of tracked environments. |

 ## License

-MIT © Scott Scoble / Greybeard Holdings, LLC
+MIT
--- a/go.mod
+++ b/go.mod
@ -0,0 +1,3 @@
+module github.com/marcus/scobleclaw
+
+go 1.26.3
--- a/kubeclaw/Makefile
+++ b/kubeclaw/Makefile
@ -0,0 +1,45 @@
+# Build and development commands for kubeclaw operator
+
+.PHONY: generate
+generate:
+	controller-gen object:headerFile="hack/boilerplate.go.txt" paths="./api/..."
+
+.PHONY: manifests
+manifests: generate
+	controller-gen rbac:roleName=kubeclaw-manager crd:maxDescLen=0,outputDir=config/crd webhook paths="./..."
+
+.PHONY: install
+install: manifests
+	kubectl apply -f config/crd/
+
+.PHONY: uninstall
+uninstall:
+	kubectl delete -f config/crd/
+
+.PHONY: run
+run: generate
+	go run ./main.go
+
+.PHONY: test
+test: generate
+	go test ./... -v -count=1
+
+.PHONY: test-integration
+test-integration:
+	go test ./... -tags=integration -v -count=1
+
+.PHONY: test-e2e
+test-e2e:
+	go test ./... -tags=e2e -v -count=1
+
+.PHONY: docker-build
+docker-build:
+	docker build -t kubeclaw/controller:latest .
+
+.PHONY: helm-package
+helm-package:
+	helm package ./charts/kubeclaw
+
+.PHONY: deploy
+deploy: docker-build helm-package
+	helm upgrade --install kubeclaw ./charts/kubeclaw --namespace kubeclaw-system --create-namespace
--- a/kubeclaw/api/v1alpha1/groupversion.go
+++ b/kubeclaw/api/v1alpha1/groupversion.go
@ -0,0 +1,16 @@
+// +kubebuilder:object:generate=true
+// +groupName=kubeclaw.nousresearch.com
+package v1alpha1
+
+import (
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"sigs.k8s.io/controller-runtime/pkg/scheme"
+)
+
+var (
+	GroupVersion = schema.GroupVersion{Group: "kubeclaw.nousresearch.com", Version: "v1alpha1"}
+
+	SchemeBuilder = &scheme.Builder{GroupVersion: GroupVersion}
+
+	AddToScheme = SchemeBuilder.AddToScheme
+)
--- a/kubeclaw/api/v1alpha1/types.go
+++ b/kubeclaw/api/v1alpha1/types.go
@ -0,0 +1,330 @@
+package v1alpha1
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// ProviderSpec defines the desired state of an LLM provider.
+type ProviderSpec struct {
+	Type         string      `json:"type"`
+	BaseURL      string      `json:"baseURL"`
+	APIKeyRef    SecretRef   `json:"apiKeyRef"`
+	Models       []ModelSpec `json:"models,omitempty"`
+	DefaultModel string      `json:"defaultModel,omitempty"`
+}
+
+type SecretRef struct {
+	Name string `json:"name"`
+	Key  string `json:"key"`
+}
+
+type ModelSpec struct {
+	Name            string  `json:"name"`
+	ContextWindow   int     `json:"contextWindow"`
+	CostPer1KInput  float64 `json:"costPer1KInput"`
+	CostPer1KOutput float64 `json:"costPer1KOutput"`
+}
+
+// +kubebuilder:object:root=true
+// +kubebuilder:resource:scope=Cluster
+type Provider struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+	Spec              ProviderSpec `json:"spec,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+type ProviderList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []Provider `json:"items"`
+}
+
+// ChannelSpec defines a platform channel binding.
+type ChannelSpec struct {
+	Platform        string     `json:"platform"`
+	BotTokenRef     SecretRef  `json:"botTokenRef"`
+	GuildID         string     `json:"guildID"`
+	AllowedChannels []string   `json:"allowedChannels,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+// +kubebuilder:resource:scope=Namespaced
+type Channel struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+	Spec              ChannelSpec `json:"spec,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+type ChannelList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []Channel `json:"items"`
+}
+
+// AgentConfigSpec defines reusable agent configuration.
+type AgentConfigSpec struct {
+	Workspace WorkspaceSpec `json:"workspace,omitempty"`
+	Memory    MemorySpec    `json:"memory,omitempty"`
+	Skills    []SkillRef    `json:"skills,omitempty"`
+	Sandbox   SandboxSpec   `json:"sandbox,omitempty"`
+	Resources ResourceSpec  `json:"resources,omitempty"`
+}
+
+type WorkspaceSpec struct {
+	MountPath string `json:"mountPath"`
+	Size      string `json:"size"`
+}
+
+type MemorySpec struct {
+	Enabled       bool `json:"enabled"`
+	RetentionDays int  `json:"retentionDays"`
+}
+
+type SkillRef struct {
+	ID      string `json:"id"`
+	Version string `json:"version"`
+}
+
+type SandboxSpec struct {
+	Type          string `json:"type"`
+	NetworkPolicy string `json:"networkPolicy"`
+}
+
+type ResourceSpec struct {
+	CPU    string `json:"cpu"`
+	Memory string `json:"memory"`
+	GPU    int    `json:"gpu"`
+}
+
+// +kubebuilder:object:root=true
+// +kubebuilder:resource:scope=Namespaced
+type AgentConfig struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+	Spec              AgentConfigSpec `json:"spec,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+type AgentConfigList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []AgentConfig `json:"items"`
+}
+
+// AgentSpec defines the desired state of an agent deployment.
+type AgentSpec struct {
+	Identity           AgentIdentity   `json:"identity"`
+	Config             AgentConfigRef  `json:"config"`
+	Providers          []ProviderRef   `json:"providers,omitempty"`
+	Channels           []ChannelRef    `json:"channels,omitempty"`
+	WorkflowTemplates  []TemplateRef   `json:"workflowTemplates,omitempty"`
+	CompliancePolicies []PolicyRef     `json:"compliancePolicies,omitempty"`
+	Judge              JudgeConfig     `json:"judge,omitempty"`
+}
+
+type AgentIdentity struct {
+	DisplayName string `json:"displayName"`
+	Description string `json:"description"`
+	Owner       string `json:"owner"`
+}
+
+type AgentConfigRef struct {
+	AgentConfigRef LocalRef       `json:"agentConfigRef"`
+	Overrides      *ResourceSpec  `json:"overrides,omitempty"`
+}
+
+type ProviderRef struct {
+	Ref   LocalRef `json:"ref"`
+	Model string   `json:"model,omitempty"`
+}
+
+type ChannelRef struct {
+	Ref LocalRef `json:"ref"`
+}
+
+type TemplateRef struct {
+	Ref LocalRef `json:"ref"`
+}
+
+type PolicyRef struct {
+	Ref LocalRef `json:"ref"`
+}
+
+type LocalRef struct {
+	Name string `json:"name"`
+}
+
+type JudgeConfig struct {
+	Enabled     bool     `json:"enabled"`
+	ProviderRef LocalRef `json:"providerRef,omitempty"`
+	Model       string   `json:"model,omitempty"`
+}
+
+type AgentStatus struct {
+	Conditions          []metav1.Condition `json:"conditions,omitempty"`
+	ObservedGeneration  int64              `json:"observedGeneration"`
+	AgentPodRef         *LocalRef          `json:"agentPodRef,omitempty"`
+	LastWorkflowCount   int                `json:"lastWorkflowCount,omitempty"`
+	LastJudgeVerdict    string             `json:"lastJudgeVerdict,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+// +kubebuilder:subresource:status
+// +kubebuilder:resource:scope=Namespaced
+type Agent struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+	Spec              AgentSpec   `json:"spec,omitempty"`
+	Status            AgentStatus `json:"status,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+type AgentList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []Agent `json:"items"`
+}
+
+type AgentGroupSpec struct {
+	SharedConfig AgentGroupSharedConfig `json:"sharedConfig"`
+	Members      []AgentGroupMember     `json:"members"`
+}
+
+type AgentGroupSharedConfig struct {
+	AgentConfigRef LocalRef      `json:"agentConfigRef"`
+	Providers      []ProviderRef `json:"providers,omitempty"`
+	Channels       []ChannelRef  `json:"channels,omitempty"`
+}
+
+type AgentGroupMember struct {
+	Name      string               `json:"name"`
+	Overrides AgentGroupOverrides  `json:"overrides,omitempty"`
+}
+
+type AgentGroupOverrides struct {
+	Channels []ChannelRef `json:"channels,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+// +kubebuilder:subresource:status
+// +kubebuilder:resource:scope=Namespaced
+type AgentGroup struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+	Spec              AgentGroupSpec `json:"spec,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+type AgentGroupList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []AgentGroup `json:"items"`
+}
+
+type WorkflowTemplateSpec struct {
+	Description  string          `json:"description"`
+	Version      string          `json:"version"`
+	Parameters   []WorkflowParam `json:"parameters,omitempty"`
+	Steps        []WorkflowStep  `json:"steps"`
+	Output       WorkflowOutput  `json:"output,omitempty"`
+	Compliance   ComplianceSpec  `json:"compliance,omitempty"`
+}
+
+type WorkflowParam struct {
+	Name        string      `json:"name"`
+	Type        string      `json:"type"`
+	Required    bool        `json:"required"`
+	Description string      `json:"description,omitempty"`
+	Default     interface{} `json:"default,omitempty"`
+	Minimum     *int        `json:"minimum,omitempty"`
+	Maximum     *int        `json:"maximum,omitempty"`
+}
+
+type WorkflowStep struct {
+	ID     string `json:"id"`
+	Action string `json:"action"`
+	Input  string `json:"input"`
+	Limit  string `json:"limit,omitempty"`
+}
+
+type WorkflowOutput struct {
+	Type   string     `json:"type"`
+	Schema *SchemaDef `json:"schema,omitempty"`
+}
+
+type SchemaDef struct {
+	Type       string               `json:"type"`
+	Items      *SchemaDef           `json:"items,omitempty"`
+	Properties map[string]SchemaProp `json:"properties,omitempty"`
+}
+
+type SchemaProp struct {
+	Type string `json:"type"`
+}
+
+type ComplianceSpec struct {
+	RequiredFrameworks  []string `json:"requiredFrameworks"`
+	DataClassification  string   `json:"dataClassification"`
+}
+
+// +kubebuilder:object:root=true
+// +kubebuilder:resource:scope=Cluster
+type WorkflowTemplate struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+	Spec              WorkflowTemplateSpec `json:"spec,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+type WorkflowTemplateList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []WorkflowTemplate `json:"items"`
+}
+
+type CompliancePolicySpec struct {
+	Framework  string           `json:"framework"`
+	Version    string           `json:"version"`
+	Rules      []ComplianceRule `json:"rules"`
+	Escalation EscalationSpec   `json:"escalation,omitempty"`
+}
+
+type ComplianceRule struct {
+	ID          string `json:"id"`
+	Severity    string `json:"severity"`
+	Description string `json:"description"`
+	Eval        string `json:"eval"`
+	OnViolation string `json:"onViolation"`
+}
+
+type EscalationSpec struct {
+	OnReject string `json:"onReject,omitempty"`
+	OnError  string `json:"onError,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+// +kubebuilder:resource:scope=Cluster
+type CompliancePolicy struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+	Spec              CompliancePolicySpec `json:"spec,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+type CompliancePolicyList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []CompliancePolicy `json:"items"`
+}
+
+func init() {
+	SchemeBuilder.Register(&Provider{}, &ProviderList{})
+	SchemeBuilder.Register(&Channel{}, &ChannelList{})
+	SchemeBuilder.Register(&AgentConfig{}, &AgentConfigList{})
+	SchemeBuilder.Register(&Agent{}, &AgentList{})
+	SchemeBuilder.Register(&AgentGroup{}, &AgentGroupList{})
+	SchemeBuilder.Register(&WorkflowTemplate{}, &WorkflowTemplateList{})
+	SchemeBuilder.Register(&CompliancePolicy{}, &CompliancePolicyList{})
+}
--- a/kubeclaw/api/v1alpha1/zz_generated.deepcopy.go
+++ b/kubeclaw/api/v1alpha1/zz_generated.deepcopy.go
--- a/kubeclaw/config/pool-manager/configmap.yaml
+++ b/kubeclaw/config/pool-manager/configmap.yaml
@ -0,0 +1,61 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: pool-manager-harness
+  namespace: scobleclaw
+data:
+  harness.yaml: |
+    pools:
+      billing:
+        manifest: ./envs/billing
+        queue: work:billing
+        spares: 2
+        max_busy: 5
+        ttl: 3600
+      devops:
+        manifest: ./envs/devops
+        queue: work:devops
+        spares: 1
+        max_busy: 3
+        ttl: 7200
+      content:
+        manifest: ./envs/content
+        queue: work:content
+        spares: 3
+        max_busy: 10
+        ttl: 1800
+      verifier:
+        manifest: ./envs/verify
+        queue: work:verify
+        spares: 1
+        max_busy: 2
+        ttl: 3600
+    routes:
+      "billing.invoice": "billing"
+      "billing.report": "billing"
+      "deploy.service": "devops"
+      "deploy.monitor": "devops"
+      "draft.blog-post": "content"
+      "draft.changelog": "content"
+      "draft.newsletter": "content"
+      "verify.security": "verifier"
+      "verify.compliance": "verifier"
+      "billing.*": "billing"
+      "deploy.*": "devops"
+      "draft.*": "content"
+      "verify.*": "verifier"
+    pipelines:
+      full_deploy:
+        stages:
+          - pool: content
+            next_queue: work:deploy
+          - pool: devops
+            next_queue: work:verify
+          - pool: verifier
+            next_queue: ""
+      generate_bill:
+        stages:
+          - pool: content
+            next_queue: work:billing
+          - pool: billing
+            next_queue: ""
--- a/kubeclaw/config/pool-manager/deployment.yaml
+++ b/kubeclaw/config/pool-manager/deployment.yaml
@ -0,0 +1,78 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: pool-manager
+  namespace: scobleclaw
+  labels:
+    app: pool-manager
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: pool-manager
+  template:
+    metadata:
+      labels:
+        app: pool-manager
+    spec:
+      containers:
+        - name: pool-manager
+          image: localhost:5000/pool-manager:latest
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 3990
+              name: http
+          env:
+            - name: PORT
+              value: "3990"
+            - name: HOST
+              value: "0.0.0.0"
+            - name: POOL_CONFIG
+              value: "/app/harness.yaml"
+          volumeMounts:
+            - name: harness-config
+              mountPath: /app/harness.yaml
+              subPath: harness.yaml
+          livenessProbe:
+            httpGet:
+              path: /healthz
+              port: http
+            initialDelaySeconds: 5
+            periodSeconds: 10
+            failureThreshold: 3
+          readinessProbe:
+            httpGet:
+              path: /healthz
+              port: http
+            initialDelaySeconds: 2
+            periodSeconds: 5
+            failureThreshold: 3
+          resources:
+            requests:
+              memory: "32Mi"
+              cpu: "50m"
+            limits:
+              memory: "128Mi"
+              cpu: "250m"
+      volumes:
+        - name: harness-config
+          configMap:
+            name: pool-manager-harness
+            defaultMode: 0444
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: pool-manager
+  namespace: scobleclaw
+  labels:
+    app: pool-manager
+spec:
+  type: ClusterIP
+  selector:
+    app: pool-manager
+  ports:
+    - name: http
+      port: 3990
+      targetPort: 3990
+      protocol: TCP
--- a/kubeclaw/config/pool-manager/namespace.yaml
+++ b/kubeclaw/config/pool-manager/namespace.yaml
@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: scobleclaw
--- a/kubeclaw/go.mod
+++ b/kubeclaw/go.mod
@ -0,0 +1,67 @@
+module github.com/nousresearch/kubeclaw
+
+go 1.22.0
+
+require (
+	k8s.io/api v0.30.0
+	k8s.io/apimachinery v0.30.0
+	k8s.io/client-go v0.30.0
+	sigs.k8s.io/controller-runtime v0.18.0
+)
+
+require (
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/emicklei/go-restful/v3 v3.11.0 // indirect
+	github.com/evanphx/json-patch/v5 v5.9.0 // indirect
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/go-logr/zapr v1.3.0 // indirect
+	github.com/go-openapi/jsonpointer v0.19.6 // indirect
+	github.com/go-openapi/jsonreference v0.20.2 // indirect
+	github.com/go-openapi/swag v0.22.3 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
+	github.com/golang/protobuf v1.5.4 // indirect
+	github.com/google/gnostic-models v0.6.8 // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
+	github.com/google/gofuzz v1.2.0 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/imdario/mergo v0.3.6 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/prometheus/client_golang v1.16.0 // indirect
+	github.com/prometheus/client_model v0.4.0 // indirect
+	github.com/prometheus/common v0.44.0 // indirect
+	github.com/prometheus/procfs v0.12.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.26.0 // indirect
+	golang.org/x/exp v0.0.0-20220722155223-a9213eeb770e // indirect
+	golang.org/x/net v0.23.0 // indirect
+	golang.org/x/oauth2 v0.12.0 // indirect
+	golang.org/x/sys v0.18.0 // indirect
+	golang.org/x/term v0.18.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/time v0.3.0 // indirect
+	gomodules.xyz/jsonpatch/v2 v2.4.0 // indirect
+	google.golang.org/appengine v1.6.7 // indirect
+	google.golang.org/protobuf v1.33.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	k8s.io/apiextensions-apiserver v0.30.0 // indirect
+	k8s.io/klog/v2 v2.120.1 // indirect
+	k8s.io/kube-openapi v0.0.0-20240228011516-70dd3763d340 // indirect
+	k8s.io/utils v0.0.0-20230726121419-3b25d923346b // indirect
+	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect
+	sigs.k8s.io/yaml v1.3.0 // indirect
+)
--- a/kubeclaw/go.sum
+++ b/kubeclaw/go.sum
@ -0,0 +1,194 @@
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--- a/kubeclaw/hack/boilerplate.go.txt
+++ b/kubeclaw/hack/boilerplate.go.txt
@ -0,0 +1,2 @@
+// kubeclaw — OpenClaw operator for Kubernetes
+// Copyright © 2026 Scott Scoble / Greybeard Holdings, LLC
--- a/kubeclaw/internal/controller/agent_controller.go
+++ b/kubeclaw/internal/controller/agent_controller.go
@ -0,0 +1,51 @@
+package controller
+
+import (
+	"context"
+
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/log"
+
+	kubeclawv1alpha1 "github.com/nousresearch/kubeclaw/api/v1alpha1"
+)
+
+// AgentReconciler reconciles Agent resources.
+type AgentReconciler struct {
+	client.Client
+	Scheme *runtime.Scheme
+}
+
+// +kubebuilder:rbac:groups=kubeclaw.nousresearch.com,resources=agents,verbs=get;list;watch;create;update;patch;delete
+// +kubebuilder:rbac:groups=kubeclaw.nousresearch.com,resources=agents/status,verbs=get;update;patch
+// +kubebuilder:rbac:groups=kubeclaw.nousresearch.com,resources=agents/finalizers,verbs=update
+// +kubebuilder:rbac:groups=core,resources=pods,verbs=get;list;watch;create;update;patch;delete
+// +kubebuilder:rbac:groups=core,resources=events,verbs=create;patch
+
+func (r *AgentReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
+	log := log.FromContext(ctx)
+
+	var agent kubeclawv1alpha1.Agent
+	if err := r.Get(ctx, req.NamespacedName, &agent); err != nil {
+		log.Error(err, "unable to fetch Agent")
+		return ctrl.Result{}, client.IgnoreNotFound(err)
+	}
+
+	log.Info("Reconciling Agent", "agent", agent.Name)
+
+	// TODO: Build or update the agent pod from the Agent spec
+	// TODO: Wire judge sidecar and workflow executor sidecar
+	// TODO: Inject ConfigMap and Secret references
+	// TODO: Update AgentStatus with pod reference and conditions
+
+	return ctrl.Result{}, nil
+}
+
+func (r *AgentReconciler) SetupWithManager(mgr ctrl.Manager) error {
+	return ctrl.NewControllerManagedBy(mgr).
+		For(&kubeclawv1alpha1.Agent{}).
+		Owns(&corev1.Pod{}).
+		Complete(r)
+}
--- a/kubeclaw/internal/controller/agentgroup_controller.go
+++ b/kubeclaw/internal/controller/agentgroup_controller.go
@ -0,0 +1,45 @@
+package controller
+
+import (
+	"context"
+
+	"k8s.io/apimachinery/pkg/runtime"
+	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/log"
+
+	kubeclawv1alpha1 "github.com/nousresearch/kubeclaw/api/v1alpha1"
+)
+
+// AgentGroupReconciler reconciles AgentGroup resources.
+type AgentGroupReconciler struct {
+	client.Client
+	Scheme *runtime.Scheme
+}
+
+// +kubebuilder:rbac:groups=kubeclaw.nousresearch.com,resources=agentgroups,verbs=get;list;watch;create;update;patch;delete
+// +kubebuilder:rbac:groups=kubeclaw.nousresearch.com,resources=agentgroups/status,verbs=get;update;patch
+
+func (r *AgentGroupReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
+	log := log.FromContext(ctx)
+
+	var group kubeclawv1alpha1.AgentGroup
+	if err := r.Get(ctx, req.NamespacedName, &group); err != nil {
+		log.Error(err, "unable to fetch AgentGroup")
+		return ctrl.Result{}, client.IgnoreNotFound(err)
+	}
+
+	log.Info("Reconciling AgentGroup", "group", group.Name)
+
+	// TODO: Reconcile each member agent with shared config + per-member overrides
+	// TODO: Create/update/delete member Agent resources
+	// TODO: Handle rolling updates on shared config changes
+
+	return ctrl.Result{}, nil
+}
+
+func (r *AgentGroupReconciler) SetupWithManager(mgr ctrl.Manager) error {
+	return ctrl.NewControllerManagedBy(mgr).
+		For(&kubeclawv1alpha1.AgentGroup{}).
+		Complete(r)
+}
--- a/kubeclaw/internal/controller/suite_test.go
+++ b/kubeclaw/internal/controller/suite_test.go
@ -0,0 +1,9 @@
+package controller
+
+import (
+	"testing"
+)
+
+func TestSuite(t *testing.T) {
+	t.Log("controller test suite stub")
+}
--- a/kubeclaw/internal/judge/client.go
+++ b/kubeclaw/internal/judge/client.go
@ -0,0 +1,44 @@
+package judge
+
+// Client communicates with the judge sidecar to validate workflow invocations.
+type Client struct {
+	Endpoint string
+}
+
+// Verdict represents the judge's decision on a workflow invocation.
+type Verdict int
+
+const (
+	VerdictApprove      Verdict = iota
+	VerdictReject
+	VerdictEscalateHuman
+)
+
+// VerificationRequest is sent to the judge sidecar for evaluation.
+type VerificationRequest struct {
+	AgentName          string                 `json:"agentName"`
+	WorkflowTemplate   string                 `json:"workflowTemplate"`
+	Params             map[string]interface{} `json:"params"`
+	CompliancePolicies []string               `json:"compliancePolicies"`
+}
+
+// VerificationResponse is returned by the judge sidecar.
+type VerificationResponse struct {
+	Verdict Verdict `json:"verdict"`
+	Reason  string  `json:"reason"`
+	RuleID  string  `json:"ruleId,omitempty"`
+}
+
+// NewClient creates a new judge client.
+func NewClient(endpoint string) *Client {
+	return &Client{Endpoint: endpoint}
+}
+
+// Verify sends a workflow invocation to the judge for evaluation.
+func (c *Client) Verify(req VerificationRequest) (*VerificationResponse, error) {
+	// TODO: Implement HTTP/gRPC call to judge sidecar
+	return &VerificationResponse{
+		Verdict: VerdictApprove,
+		Reason:  "judge client stub — always approves",
+	}, nil
+}
--- a/kubeclaw/internal/judge/verifier.go
+++ b/kubeclaw/internal/judge/verifier.go
@ -0,0 +1,23 @@
+package judge
+
+import "time"
+
+// Verifier evaluates compliance policies against workflow invocations.
+type Verifier struct {
+	client *Client
+}
+
+// VerificationRecord stores the result of a judge evaluation.
+type VerificationRecord struct {
+	Timestamp time.Time     `json:"timestamp"`
+	AgentName string        `json:"agentName"`
+	Workflow  string        `json:"workflow"`
+	Verdict   Verdict       `json:"verdict"`
+	Reason    string        `json:"reason"`
+	Duration  time.Duration `json:"durationMs"`
+}
+
+// NewVerifier creates a new Verifier backed by the given client.
+func NewVerifier(client *Client) *Verifier {
+	return &Verifier{client: client}
+}
--- a/kubeclaw/internal/webhook/agent_validator.go
+++ b/kubeclaw/internal/webhook/agent_validator.go
@ -0,0 +1,46 @@
+package webhook
+
+import (
+	"context"
+	"fmt"
+
+	"k8s.io/apimachinery/pkg/runtime"
+	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
+
+	kubeclawv1alpha1 "github.com/nousresearch/kubeclaw/api/v1alpha1"
+)
+
+// AgentValidator validates Agent resources on create/update.
+type AgentValidator struct{}
+
+// +kubebuilder:webhook:path=/validate-kubeclaw-nousresearch-com-v1alpha1-agent,mutating=false,failurePolicy=fail,sideEffects=None,groups=kubeclaw.nousresearch.com,resources=agents,verbs=create;update,versions=v1alpha1,name=vagent.kubeclaw.nousresearch.com,admissionReviewVersions=v1
+
+func (v *AgentValidator) ValidateCreate(ctx context.Context, obj runtime.Object) (admission.Warnings, error) {
+	agent, ok := obj.(*kubeclawv1alpha1.Agent)
+	if !ok {
+		return nil, fmt.Errorf("expected Agent got %T", obj)
+	}
+	if agent.Spec.Identity.DisplayName == "" {
+		return admission.Warnings{"Agent must have a display name"}, nil
+	}
+	// TODO: Validate provider references exist
+	// TODO: Validate channel references exist
+	// TODO: Validate workflow template references exist
+	return nil, nil
+}
+
+func (v *AgentValidator) ValidateUpdate(ctx context.Context, oldObj, newObj runtime.Object) (admission.Warnings, error) {
+	return nil, nil
+}
+
+func (v *AgentValidator) ValidateDelete(ctx context.Context, obj runtime.Object) (admission.Warnings, error) {
+	return nil, nil
+}
+
+func (v *AgentValidator) SetupWebhookWithManager(mgr ctrl.Manager) error {
+	return ctrl.NewWebhookManagedBy(mgr).
+		For(&kubeclawv1alpha1.Agent{}).
+		WithValidator(v).
+		Complete()
+}
--- a/kubeclaw/main.go
+++ b/kubeclaw/main.go
@ -0,0 +1,94 @@
+package main
+
+import (
+	"flag"
+	"os"
+
+	"k8s.io/apimachinery/pkg/runtime"
+	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
+	clientgoscheme "k8s.io/client-go/kubernetes/scheme"
+	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/healthz"
+	"sigs.k8s.io/controller-runtime/pkg/log/zap"
+	metricsserver "sigs.k8s.io/controller-runtime/pkg/metrics/server"
+
+	kubeclawv1alpha1 "github.com/nousresearch/kubeclaw/api/v1alpha1"
+	"github.com/nousresearch/kubeclaw/internal/controller"
+	"github.com/nousresearch/kubeclaw/internal/webhook"
+)
+
+var (
+	scheme   = runtime.NewScheme()
+	setupLog = ctrl.Log.WithName("setup")
+)
+
+func init() {
+	utilruntime.Must(clientgoscheme.AddToScheme(scheme))
+	utilruntime.Must(kubeclawv1alpha1.AddToScheme(scheme))
+}
+
+func main() {
+	var metricsAddr string
+	var enableLeaderElection bool
+	var probeAddr string
+	flag.StringVar(&metricsAddr, "metrics-bind-address", ":8080", "The address the metric endpoint binds to.")
+	flag.StringVar(&probeAddr, "health-probe-bind-address", ":8081", "The address the probe endpoint binds to.")
+	flag.BoolVar(&enableLeaderElection, "leader-elect", false,
+		"Enable leader election for controller manager. "+
+			"Enabling this will ensure there is only one active controller manager.")
+	opts := zap.Options{
+		Development: true,
+	}
+	opts.BindFlags(flag.CommandLine)
+	flag.Parse()
+
+	ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts)))
+
+	mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
+		Scheme:                 scheme,
+		Metrics:                metricsserver.Options{BindAddress: metricsAddr},
+		HealthProbeBindAddress: probeAddr,
+		LeaderElection:         enableLeaderElection,
+		LeaderElectionID:       "kubeclaw.nousresearch.com",
+	})
+	if err != nil {
+		setupLog.Error(err, "unable to start manager")
+		os.Exit(1)
+	}
+
+	if err = (&controller.AgentReconciler{
+		Client: mgr.GetClient(),
+		Scheme: mgr.GetScheme(),
+	}).SetupWithManager(mgr); err != nil {
+		setupLog.Error(err, "unable to create controller", "controller", "Agent")
+		os.Exit(1)
+	}
+
+	if err = (&controller.AgentGroupReconciler{
+		Client: mgr.GetClient(),
+		Scheme: mgr.GetScheme(),
+	}).SetupWithManager(mgr); err != nil {
+		setupLog.Error(err, "unable to create controller", "controller", "AgentGroup")
+		os.Exit(1)
+	}
+
+	if err = (&webhook.AgentValidator{}).SetupWebhookWithManager(mgr); err != nil {
+		setupLog.Error(err, "unable to create webhook", "webhook", "Agent")
+		os.Exit(1)
+	}
+
+	if err := mgr.AddHealthzCheck("healthz", healthz.Ping); err != nil {
+		setupLog.Error(err, "unable to set up health check")
+		os.Exit(1)
+	}
+	if err := mgr.AddReadyzCheck("readyz", healthz.Ping); err != nil {
+		setupLog.Error(err, "unable to set up ready check")
+		os.Exit(1)
+	}
+
+	setupLog.Info("starting manager")
+	if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil {
+		setupLog.Error(err, "problem running manager")
+		os.Exit(1)
+	}
+}
--- a/pkg/floxenv/alive.go
+++ b/pkg/floxenv/alive.go
@ -0,0 +1,46 @@
+package floxenv
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+	"syscall"
+)
+
+// IsAlive returns true if the process identified by pid is still running.
+// It first attempts a zero-signal delivery test, then confirms on Linux
+// by inspecting /proc/<pid>/stat so that zombie processes are reported dead.
+func IsAlive(pid int) bool {
+	if pid <= 0 {
+		return false
+	}
+	if err := syscall.Kill(pid, 0); err != nil {
+		return false
+	}
+	// Linux-specific confirmation to distinguish zombies.
+	data, err := os.ReadFile(fmt.Sprintf("/proc/%d/stat", pid))
+	if err != nil {
+		// /proc may be unavailable in restricted spaces; trust signal result.
+		return true
+	}
+	s := string(data)
+	idx := strings.LastIndexByte(s, ')')
+	if idx >= 0 && idx+2 < len(s) {
+		state := s[idx+2]
+		if state == 'Z' { // zombie
+			return false
+		}
+	}
+	return true
+}
+
+// IsAliveString wraps IsAlive with string-to-int conversion.
+// It returns false for any parse or signal error.
+func IsAliveString(s string) bool {
+	pid, err := strconv.Atoi(s)
+	if err != nil {
+		return false
+	}
+	return IsAlive(pid)
+}
--- a/pkg/floxenv/floxenv.go
+++ b/pkg/floxenv/floxenv.go
@ -0,0 +1,242 @@
+// Package floxenv manages Flox environment lifecycles via flox activate --detach.
+// When the flox binary is not available, it falls back to a dev-mode stub suitable
+// for local development and testing.
+package floxenv
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"sync"
+	"syscall"
+	"time"
+)
+
+var (
+	// ErrNotFound is returned when flox is not installed and dev mode is disabled.
+	ErrNotFound = errors.New("flox command not found")
+	// ErrAlreadyRunning is returned if an env with the same manifest is already active.
+	ErrAlreadyRunning = errors.New("environment already active")
+	// ErrActivationFailed is returned when flox activate exits non-zero.
+	ErrActivationFailed = errors.New("flox activation failed")
+	// ErrTimeout is returned when graceful shutdown exceeds the deadline.
+	ErrTimeout = errors.New("environment shutdown timed out")
+)
+
+const (
+	defaultFloxPath = "flox"
+	devModeEnvVar   = "FLOXENV_DEV_MODE"
+	gracePeriod     = 10 * time.Second
+)
+
+// Registry tracks active environment metadata by envID.
+type Registry struct {
+	mu   sync.RWMutex
+	m    map[string]Info
+	stub bool // true when flox binary is absent and dev mode is enabled
+}
+
+// Info holds runtime details for an activated environment.
+type Info struct {
+	EnvID       string
+	PID         int
+	ManifestPath string
+	StartedAt   time.Time
+}
+
+// NewRegistry creates a new environment registry.
+// It detects whether flox is available and enables dev-mode stub behaviour if not.
+func NewRegistry() *Registry {
+	r := &Registry{m: make(map[string]Info)}
+	_, err := exec.LookPath(defaultFloxPath)
+	if err != nil || os.Getenv(devModeEnvVar) == "1" {
+		r.stub = true
+	}
+	return r
+}
+
+// IsDevMode returns true when the registry is running in stub/dev mode.
+func (r *Registry) IsDevMode() bool {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+	return r.stub
+}
+
+// Activate starts a Flox environment in detached mode.
+// manifestPath should point to a valid manifest.toml or flox.nix.
+// On success it returns an envID (directory name + timestamp hash) and the PID of the
+// detached activation process.
+func (r *Registry) Activate(manifestPath string) (string, int, error) {
+	absPath, err := filepath.Abs(manifestPath)
+	if err != nil {
+		return "", 0, fmt.Errorf("resolve manifest path: %w", err)
+	}
+
+	envID := generateEnvID(absPath)
+
+	r.mu.Lock()
+	if existing, ok := r.m[envID]; ok && IsAlive(existing.PID) {
+		r.mu.Unlock()
+		return "", 0, fmt.Errorf("%w: envID=%s pid=%d", ErrAlreadyRunning, envID, existing.PID)
+	}
+	r.mu.Unlock()
+
+	if r.IsDevMode() {
+		return r.stubActivate(envID, absPath)
+	}
+
+	// Run:  flox activate --detach -d <manifestDir>
+	manifestDir := filepath.Dir(absPath)
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	cmd := exec.CommandContext(ctx, defaultFloxPath, "activate", "--detach", "-d", manifestDir)
+	var out bytes.Buffer
+	var stderr bytes.Buffer
+	cmd.Stdout = &out
+	cmd.Stderr = &stderr
+
+	if err := cmd.Run(); err != nil {
+		return "", 0, fmt.Errorf("%w: %w (stderr: %s)", ErrActivationFailed, err, strings.TrimSpace(stderr.String()))
+	}
+
+	pid, err := parsePID(out.String())
+	if err != nil {
+		return "", 0, fmt.Errorf("parse activation pid: %w (output: %s)", err, strings.TrimSpace(out.String()))
+	}
+
+	info := Info{
+		EnvID:        envID,
+		PID:          pid,
+		ManifestPath: absPath,
+		StartedAt:    time.Now(),
+	}
+
+	r.mu.Lock()
+	r.m[envID] = info
+	r.mu.Unlock()
+
+	return envID, pid, nil
+}
+
+// stubActivate is the dev-mode fallback when flox is unavailable.
+// It forks a lightweight long-running shell command and records the PID.
+func (r *Registry) stubActivate(envID, manifestPath string) (string, int, error) {
+	cmd := exec.Command("sh", "-c", "sleep 3600")
+	cmd.SysProcAttr = &syscall.SysProcAttr{
+		Setpgid: true, // avoid dying with the parent
+	}
+	if err := cmd.Start(); err != nil {
+		return "", 0, fmt.Errorf("stub activate failed: %w", err)
+	}
+
+	info := Info{
+		EnvID:        envID,
+		PID:          cmd.Process.Pid,
+		ManifestPath: manifestPath,
+		StartedAt:    time.Now(),
+	}
+
+	r.mu.Lock()
+	r.m[envID] = info
+	r.mu.Unlock()
+
+	return envID, cmd.Process.Pid, nil
+}
+
+// Deactivate gracefully shuts down an active Flox environment.
+// It sends SIGTERM, waits up to 10 seconds, then SIGKILL if still alive.
+func (r *Registry) Deactivate(envID string, pid int) error {
+	r.mu.RLock()
+	info, ok := r.m[envID]
+	r.mu.RUnlock()
+
+	if !ok {
+		// Allow deactivation of PIDs we didn't start (defensive).
+		info = Info{EnvID: envID, PID: pid}
+	}
+
+	if info.PID != pid {
+		return fmt.Errorf("pid mismatch: registry has %d, caller provided %d", info.PID, pid)
+	}
+
+	if !IsAlive(pid) {
+		// Already dead, clean-up registry anyway.
+		r.mu.Lock()
+		delete(r.m, envID)
+		r.mu.Unlock()
+		return nil
+	}
+
+	// Phase 1: SIGTERM (syscall.Kill avoids os.FindProcess Linux quirk)
+	if err := syscall.Kill(pid, syscall.SIGTERM); err != nil {
+		return fmt.Errorf("send SIGTERM to %d: %w", pid, err)
+	}
+
+	deadline := time.After(gracePeriod)
+	ticker := time.NewTicker(200 * time.Millisecond)
+	defer ticker.Stop()
+
+	for {
+		select {
+		case <-deadline:
+			// Phase 2: SIGKILL
+			_ = syscall.Kill(pid, syscall.SIGKILL)
+			// Wait a hair for the kernel to reap.
+			time.Sleep(100 * time.Millisecond)
+			if IsAlive(pid) {
+				return fmt.Errorf("%w: envID=%s pid=%d", ErrTimeout, envID, pid)
+			}
+			r.mu.Lock()
+			delete(r.m, envID)
+			r.mu.Unlock()
+			return nil
+		case <-ticker.C:
+			if !IsAlive(pid) {
+				r.mu.Lock()
+				delete(r.m, envID)
+				r.mu.Unlock()
+				return nil
+			}
+		}
+	}
+}
+
+// List returns a snapshot of currently tracked environments.
+func (r *Registry) List() []Info {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+	out := make([]Info, 0, len(r.m))
+	for _, v := range r.m {
+		out = append(out, v)
+	}
+	return out
+}
+
+// generateEnvID creates a deterministic identifier for a manifest path.
+func generateEnvID(path string) string {
+	dir := filepath.Dir(path)
+	base := filepath.Base(dir)
+	t := strconv.FormatInt(time.Now().Unix(), 36)
+	return fmt.Sprintf("%s-%s", base, t)
+}
+
+// parsePID extracts an integer PID from flox activate --detach output.
+// Flox itself does not always print the PID, so fall back to the shell
+// process spawned by this package (handled separately).  This helper
+// attempts to find a PID in the output and returns an error if none found.
+func parsePID(s string) (int, error) {
+	f := strings.Fields(s)
+	for _, tok := range f {
+		if n, err := strconv.Atoi(tok); err == nil && n > 0 {
+			return n, nil
+		}
+	}
+	return 0, errors.New("no PID found in output")
+}
--- a/pkg/floxenv/floxenv_test.go
+++ b/pkg/floxenv/floxenv_test.go
@ -0,0 +1,141 @@
+package floxenv
+
+import (
+	"errors"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"syscall"
+	"testing"
+	"time"
+)
+
+func TestNewRegistry_DetectsDevMode(t *testing.T) {
+	r := NewRegistry()
+	if _, err := exec.LookPath(defaultFloxPath); err == nil && os.Getenv(devModeEnvVar) != "1" {
+		if r.IsDevMode() {
+			t.Fatal("expected dev mode false when flox is present and FLOXENV_DEV_MODE unset")
+		}
+	} else {
+		if !r.IsDevMode() {
+			t.Fatal("expected dev mode true when flox missing or FLOXENV_DEV_MODE=1")
+		}
+	}
+}
+
+func TestActivate_Stub(t *testing.T) {
+	// Force dev mode for a deterministic test.
+	t.Setenv(devModeEnvVar, "1")
+
+	tmpDir := t.TempDir()
+	manifest := filepath.Join(tmpDir, "manifest.toml")
+	if err := os.WriteFile(manifest, []byte("[install]\n\n"), 0600); err != nil {
+		t.Fatalf("write manifest: %v", err)
+	}
+
+	r := NewRegistry()
+	envID, pid, err := r.Activate(manifest)
+	if err != nil {
+		t.Fatalf("activate failed: %v", err)
+	}
+	if envID == "" {
+		t.Fatal("expected non-empty envID")
+	}
+	if pid <= 0 {
+		t.Fatalf("expected positive pid, got %d", pid)
+	}
+	defer func() {
+		_ = r.Deactivate(envID, pid)
+	}()
+
+	if !IsAlive(pid) {
+		t.Fatalf("expected pid %d to be alive after stub activation", pid)
+	}
+}
+
+func TestDeactivate_GracefulShutdown(t *testing.T) {
+	t.Setenv(devModeEnvVar, "1")
+
+	tmpDir := t.TempDir()
+	manifest := filepath.Join(tmpDir, "manifest.toml")
+	_ = os.WriteFile(manifest, []byte(""), 0600)
+
+	r := NewRegistry()
+	envID, pid, err := r.Activate(manifest)
+	if err != nil {
+		t.Fatalf("activate failed: %v", err)
+	}
+
+	// Deactivate should succeed.
+	if err := r.Deactivate(envID, pid); err != nil {
+		t.Fatalf("deactivate failed: %v", err)
+	}
+
+	// Allow scheduler to reap.
+	time.Sleep(100 * time.Millisecond)
+
+	if IsAlive(pid) {
+		t.Fatalf("expected pid %d to be dead after deactivate", pid)
+	}
+
+	// Registry entry should be removed.
+	for _, info := range r.List() {
+		if info.EnvID == envID {
+			t.Fatalf("registry still holds envID %s after deactivation", envID)
+		}
+	}
+}
+
+func TestDeactivate_SigkillFallback(t *testing.T) {
+	t.Setenv(devModeEnvVar, "1")
+
+	// Start a child that ignores SIGTERM.
+	cmd := exec.Command("sh", "-c", `
+		trap '' TERM
+		sleep 3600
+	`)
+	cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
+	if err := cmd.Start(); err != nil {
+		t.Fatalf("start ignore-sigterm process: %v", err)
+	}
+	pid := cmd.Process.Pid
+
+	r := NewRegistry()
+	envID := "forced-ignore-term"
+	r.m[envID] = Info{EnvID: envID, PID: pid, ManifestPath: "/tmp/dummy", StartedAt: time.Now()}
+
+	err := r.Deactivate(envID, pid)
+	if err != nil {
+		// A timeout is acceptable here; the key assertion is that the process
+		// is no longer alive after Deactivate returns.
+		if !errors.Is(err, ErrTimeout) {
+			t.Fatalf("unexpected deactivation error: %v", err)
+		}
+	}
+
+	// Allow the kernel time to reap.
+	time.Sleep(200 * time.Millisecond)
+
+	if IsAlive(pid) {
+		t.Fatalf("expected pid %d to be dead after deactivate, but it is still alive", pid)
+	}
+}
+
+func TestIsAlive_InvalidPid(t *testing.T) {
+	if IsAlive(0) {
+		t.Fatal("expected pid 0 to be reported dead")
+	}
+	if IsAlive(-1) {
+		t.Fatal("expected pid -1 to be reported dead")
+	}
+	// PID 1 should exist on Linux, but in restricted containers it may not.
+	// We only assert that the function does not panic.
+	_ = IsAlive(1)
+}
+
+func isTimeout(err error) bool {
+	if err == nil {
+		return false
+	}
+	return err.Error() == ErrTimeout.Error() || err.Error() == (ErrTimeout.Error()+": envID=forced-ignore-term pid=0")
+}
--- a/pkg/floxenv/integration_test.go
+++ b/pkg/floxenv/integration_test.go
@ -0,0 +1,70 @@
+//go:build integration
+
+package floxenv
+
+import (
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+)
+
+// TestIntegration_ActivateDeactivate exercises the real flox binary if present.
+// Run with:  go test -tags=integration ./pkg/floxenv
+func TestIntegration_ActivateDeactivate(t *testing.T) {
+	if _, err := exec.LookPath(defaultFloxPath); err != nil {
+		t.Skip("flox not installed; skipping integration test")
+	}
+
+	// Verify that the installed flox supports --detach.
+	if out, err := exec.Command(defaultFloxPath, "activate", "--help").Output(); err == nil {
+		if !strings.Contains(string(out), "detach") {
+			t.Skip("installed flox does not support --detach; skipping integration test")
+		}
+	} else {
+		t.Skipf("unable to query flox activate help: %v", err)
+	}
+
+	tmpDir := t.TempDir()
+	manifest := filepath.Join(tmpDir, "flox.nix")
+	if err := os.WriteFile(manifest, []byte(`{
+  description = "test env";
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  outputs = { self, nixpkgs }: {};
+}`), 0600); err != nil {
+		t.Fatalf("write manifest: %v", err)
+	}
+
+	r := NewRegistry()
+	envID, pid, err := r.Activate(manifest)
+	if err != nil {
+		t.Fatalf("activate failed: %v", err)
+	}
+
+	if !IsAlive(pid) {
+		t.Fatalf("expected pid %d to be alive after activation", pid)
+	}
+
+	// Ensure we clean up even if the test panics.
+	t.Cleanup(func() {
+		_ = r.Deactivate(envID, pid)
+	})
+
+	// Give flox a moment to fully initialise detached state.
+	time.Sleep(500 * time.Millisecond)
+
+	if err := r.Deactivate(envID, pid); err != nil {
+		t.Fatalf("deactivate failed: %v", err)
+	}
+
+	// Polling isAlive because flox may take a moment to tear down.
+	for i := 0; i < 30; i++ {
+		if !IsAlive(pid) {
+			return
+		}
+		time.Sleep(100 * time.Millisecond)
+	}
+	t.Fatalf("expected pid %d to be dead after deactivate, but it is still alive", pid)
+}