feat: migrate to official OpenSlo go-sdk and slog logging

AGENTS.md

@@ -3,45 +3,71 @@
 ## Commands
 
 ```
-go build -o opensloctl .          # build binary
-go run . load -f <file>           # parse and print OpenSlo specs
-go run . generate -f <file> -o <dir>  # generate Prometheus recording rules
-golangci-lint run                 # lint (via mise)
-go test ./...                     # run tests (none exist yet)
+make lint                         # golangci-lint run
+make test                         # go test ./...
+make load FILE=<file>             # parse and print OpenSlo specs
+make generate FILE=<f> OUTPUT=<d> # generate Prometheus recording rules
+```
+
+Semconv registry (Weaver):
+```
+make semconv-generate             # registry YAML → pkg/semconv/semconv_gen.go
+make semconv-check                # validate registry schema
+make semconv-stats                # show registry statistics
+make semconv-diff BASE=<ref>      # detect breaking changes vs base ref
 ```
 
 ## Architecture
 
 - `main.go` → `cmd.Execute()` — single entrypoint
 - CLI: cobra-based, two subcommands: `load`, `generate`
-- `pkg/specstore/` — loads and sorts OpenSlo YAML files into typed structs
-- `internal/generator/prometheusgenerator/` — generates Prometheus recording rule YAML from SLO specs using Go templates (embedded via `//go:embed`)
-- `pkg/semconv/` — OpenTelemetry semantic convention constants
-- `internal/feature/` — feature flags (multi-dimensional SLI annotations)
-- `pkg/util/file.go` — file discovery (recursive YAML/YML finder)
+  - Both accept `-f` (filename, repeatable) and `-r` (recursive directory scan)
+  - `generate` also requires `-o` (output directory)
+- `pkg/specstore/loader.go` — loads YAML files via `openslosdk.Decode`, sorts into typed `OpenSloSpecs` struct
+- `internal/generator/generator.go` — `Generator` interface
+- `internal/generator/prometheusgenerator/` — generates Prometheus recording rule YAML from SLO specs using Go templates + sprig (embedded via `//go:embed`)
+- `internal/feature/feature.go` — feature flags for multi-dimensional SLI annotations
+- `pkg/semconv/semconv_gen.go` — **auto-generated** from semconv registry (do not edit manually)
+- `pkg/util/file.go` — recursive YAML/YML file discovery
+
+## Semconv Codegen Flow
+
+`semconv/registry/` (YAML metrics/attributes) → `semconv/templates/go/` (MiniJinja) → `pkg/semconv/semconv_gen.go`
+
+Run `make semconv-generate` after editing registry YAML or templates. `go generate ./...` runs this before goreleaser builds.
 
 ## Key Dependencies
 
-- `github.com/thisisibrahimd/openslo` — OpenSlo SDK for decoding specs
+- `github.com/OpenSLO/go-sdk` — official OpenSlo SDK for decoding specs (v0.9.2)
 - `github.com/spf13/cobra` — CLI framework
-- `github.com/charmbracelet/log` — logging
+- `log/slog` — structured logging (stdlib)
 - `github.com/Masterminds/sprig/v3` — template functions
+- OpenTelemetry Weaver — semconv registry management
 
 ## CI / Release
 
 - GoReleaser builds linux/darwin binaries, CGO_ENABLED=0
-- PR triggers snapshot dry-run; published release triggers real release
-- `go mod tidy` + `go generate ./...` run before build
+- `before` hooks: `go mod tidy` + `go generate ./...`
+- `prerelease: auto` — tags with prerelease markers get prerelease release
 
 ## Tooling
 
 - `mise.toml` manages Go (1.26), golangci-lint, weaver
+- `go.mod` declares `go 1.25.5` — auto-upgraded by SDK migration; trust mise for dev
 - No `.golangci.yml` — uses defaults
-- No Makefile, Taskfile, or pre-commit hooks
+- No tests exist — adding tests requires setting up from scratch
 
 ## Gotchas
 
-- `generate` requires `-o` (output directory) — cannot be empty
-- `generate` requires `indicator` on SLOs; ratio metrics not supported
-- Spec files must be YAML/YML; non-OpenSlo files are silently skipped with a log error
-- No tests exist — adding tests requires setting up from scratch
+- `generate` rejects: empty `-o`, SLOs without `indicator`, ratio metrics (not supported)
+- Only `ThresholdMetric` supported — `RatioMetric` returns error
+- Non-OpenSlo YAML files silently skipped (continue on decode error)
+- `semconv_gen.go` is auto-generated — never hand-edit
+- Feature flags use SLO annotations: `multi-dimensional-sli.openslo.com/dimensions` + `multi-dimensional-sli.openslo.com/label`
+
+## SDK API Notes (github.com/OpenSLO/go-sdk)
+
+- `SLIMetricSource.Spec` (not `MetricSourceSpec`) — `map[string]any` containing the query
+- `SLOObjective.Target` is `*float64` (pointer), not `float64`
+- `SLOTimeWindow.Duration` is `v1.DurationShorthand` (struct), not `string` — use `.String()` for string representation
+- `BudgetAdjustment` kind not supported in this SDK version

cmd/generate.go

@@ -1,7 +1,9 @@
 package cmd
 
 import (
-	"github.com/charmbracelet/log"
+	"log/slog"
+	"os"
+
 	"github.com/spf13/cobra"
 	"github.com/thisisibrahimd/opensloctl/internal/generator/prometheusgenerator"
 	"github.com/thisisibrahimd/opensloctl/pkg/specstore"
@@ -32,17 +34,19 @@ func newGenerateCommand() *cobra.Command {
 }
 
 func runGenerate(cmd *cobra.Command, args []string, flags generateFlags) {
-	log.Info("running generate command")
+	slog.Info("running generate command")
 
 	specStore := specstore.NewSpecStore(specstore.WithFilenames(flags.filenames), specstore.WithRecursive(flags.recursive))
 	specs, err := specStore.GetSpecs()
 	if err != nil {
-		log.Fatal(err)
+		slog.Error(err.Error())
+		os.Exit(1)
 	}
 
 	pg := prometheusgenerator.NewPrometheusGenerator(specs)
 	err = pg.Generate(flags.outputDirectory)
 	if err != nil {
-		log.Fatal("unable to generate files", "err", err)
+		slog.Error("unable to generate files", "err", err)
+		os.Exit(1)
 	}
 }

cmd/load.go

@@ -1,7 +1,9 @@
 package cmd
 
 import (
-	"github.com/charmbracelet/log"
+	"log/slog"
+	"os"
+
 	"github.com/spf13/cobra"
 	"github.com/thisisibrahimd/opensloctl/pkg/specstore"
 )
@@ -29,15 +31,15 @@ func newLoadCommand() *cobra.Command {
 }
 
 func runLoad(cmd *cobra.Command, args []string, flags loadFlags) {
-	log.Info("reading files/dirs", "number", len(flags.filenames))
+	slog.Info("reading files/dirs", "number", len(flags.filenames))
 
 	// Read and load specs
 	specStore := specstore.NewSpecStore(specstore.WithFilenames(flags.filenames), specstore.WithRecursive(flags.recursive))
 	specs, err := specStore.GetSpecs()
 	if err != nil {
-		log.Fatal(err)
+		slog.Error(err.Error())
+		os.Exit(1)
 	}
 
-	log.Info(specs)
-
+	slog.Info("specs loaded", "count", len(specs.V1.SLOs))
 }

go.mod

@@ -1,41 +1,35 @@
 module github.com/thisisibrahimd/opensloctl
 
-go 1.22.5
+go 1.25.5
 
 require (
 	github.com/Masterminds/sprig/v3 v3.3.0
-	github.com/charmbracelet/log v0.4.0
+	github.com/OpenSLO/go-sdk v0.9.2
 	github.com/pkg/errors v0.9.1
 	github.com/spf13/cobra v1.8.1
-	github.com/thisisibrahimd/openslo v1.0.1-alpha5
 )
 
 require (
 	dario.cat/mergo v1.0.1 // indirect
 	github.com/Masterminds/goutils v1.1.1 // indirect
 	github.com/Masterminds/semver/v3 v3.3.0 // indirect
-	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
-	github.com/charmbracelet/lipgloss v0.13.0 // indirect
-	github.com/charmbracelet/x/ansi v0.3.2 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
-	github.com/go-logfmt/logfmt v0.6.0 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/huandu/xstrings v1.5.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
-	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
-	github.com/mattn/go-isatty v0.0.20 // indirect
-	github.com/mattn/go-runewidth v0.0.16 // indirect
 	github.com/mitchellh/copystructure v1.2.0 // indirect
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
-	github.com/muesli/termenv v0.15.2 // indirect
+	github.com/nobl9/govy v0.26.0 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
-	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/shopspring/decimal v1.4.0 // indirect
 	github.com/spf13/cast v1.7.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/stretchr/testify v1.9.0 // indirect
+	go.yaml.in/yaml/v2 v2.4.2 // indirect
 	golang.org/x/crypto v0.27.0 // indirect
-	golang.org/x/exp v0.0.0-20240909161429-701f63a606c0 // indirect
-	golang.org/x/sys v0.25.0 // indirect
+	golang.org/x/mod v0.36.0 // indirect
+	golang.org/x/sync v0.20.0 // indirect
+	golang.org/x/tools v0.45.0 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
+	sigs.k8s.io/yaml v1.6.0 // indirect
 )

go.sum

@@ -6,21 +6,13 @@ github.com/Masterminds/semver/v3 v3.3.0 h1:B8LGeaivUe71a5qox1ICM/JLl0NqZSW5CHyL+
 github.com/Masterminds/semver/v3 v3.3.0/go.mod h1:4V+yj/TJE1HU9XfppCwVMZq3I84lprf4nC11bSS5beM=
 github.com/Masterminds/sprig/v3 v3.3.0 h1:mQh0Yrg1XPo6vjYXgtf5OtijNAKJRNcTdOOGZe3tPhs=
 github.com/Masterminds/sprig/v3 v3.3.0/go.mod h1:Zy1iXRYNqNLUolqCpL4uhk6SHUMAOSCzdgBfDb35Lz0=
-github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
-github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
-github.com/charmbracelet/lipgloss v0.13.0 h1:4X3PPeoWEDCMvzDvGmTajSyYPcZM4+y8sCA/SsA3cjw=
-github.com/charmbracelet/lipgloss v0.13.0/go.mod h1:nw4zy0SBX/F/eAO1cWdcvy6qnkDUxr8Lw7dvFrAIbbY=
-github.com/charmbracelet/log v0.4.0 h1:G9bQAcx8rWA2T3pWvx7YtPTPwgqpk7D68BX21IRW8ZM=
-github.com/charmbracelet/log v0.4.0/go.mod h1:63bXt/djrizTec0l11H20t8FDSvA4CRZJ1KH22MdptM=
-github.com/charmbracelet/x/ansi v0.3.2 h1:wsEwgAN+C9U06l9dCVMX0/L3x7ptvY1qmjMwyfE6USY=
-github.com/charmbracelet/x/ansi v0.3.2/go.mod h1:dk73KoMTT5AX5BsX0KrqhsTqAnhZZoCBjs7dGWp4Ktw=
+github.com/OpenSLO/go-sdk v0.9.2 h1:pc6b4sWImIJreEDGNPbfplMbOZL5LwOkoRq2IULShRc=
+github.com/OpenSLO/go-sdk v0.9.2/go.mod h1:s4PEBTqO5O2u5SeVFQZyLHE9RzCZgGNxTt43FwuqvCo=
 github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
 github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
-github.com/go-logfmt/logfmt v0.6.0 h1:wGYYu3uicYdqXVgoYbvnkrPVXkuLM1p1ifugDMEdRi4=
-github.com/go-logfmt/logfmt v0.6.0/go.mod h1:WYhtIu8zTZfxdn5+rREduYbwxfcBr/Vr6KEVveWlfTs=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
@@ -36,25 +28,16 @@ github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
-github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
-github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
-github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
-github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
-github.com/mattn/go-runewidth v0.0.16 h1:E5ScNMtiwvlvB5paMFdw9p4kSQzbXFikJ5SQO6TULQc=
-github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
 github.com/mitchellh/copystructure v1.2.0 h1:vpKXTN4ewci03Vljg/q9QvCGUDttBOGBIa15WveJJGw=
 github.com/mitchellh/copystructure v1.2.0/go.mod h1:qLl+cE2AmVv+CoeAwDPye/v+N2HKCj9FbZEVFJRxO9s=
 github.com/mitchellh/reflectwalk v1.0.2 h1:G2LzWKi524PWgd3mLHV8Y5k7s6XUvT0Gef6zxSIeXaQ=
 github.com/mitchellh/reflectwalk v1.0.2/go.mod h1:mSTlrgnPZtwu0c4WaC2kGObEpuNDbx0jmZXqmk4esnw=
-github.com/muesli/termenv v0.15.2 h1:GohcuySI0QmI3wN8Ok9PtKGkgkFIk7y6Vpb5PvrY+Wo=
-github.com/muesli/termenv v0.15.2/go.mod h1:Epx+iuz8sNs7mNKhxzH4fWXGNpZwUaJKRS1noLXviQ8=
+github.com/nobl9/govy v0.26.0 h1:pjHXreO+3Rl+Uz6/rFX7L54zH4LW/SaTjb6YX3GQGs4=
+github.com/nobl9/govy v0.26.0/go.mod h1:fExiIzXORe0ktwg2bWasOAmCZtEFMQkR4PpgzhHcZSA=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
-github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
-github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
 github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
@@ -68,17 +51,22 @@ github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-github.com/thisisibrahimd/openslo v1.0.1-alpha5 h1:A2swL0D41eGVNpGydwlyl1kUesCdOega+2Hb23Br7qs=
-github.com/thisisibrahimd/openslo v1.0.1-alpha5/go.mod h1:SQ1CagQEbM454dDhJBAmJOzDhtJaN3h+LPwkFnUtYyY=
+go.yaml.in/yaml/v2 v2.4.2 h1:DzmwEr2rDGHl7lsFgAHxmNz/1NlQ7xLIrlN2h5d1eGI=
+go.yaml.in/yaml/v2 v2.4.2/go.mod h1:081UH+NErpNdqlCXm3TtEran0rJZGxAYx9hb/ELlsPU=
+go.yaml.in/yaml/v3 v3.0.3 h1:bXOww4E/J3f66rav3pX3m8w6jDE4knZjGOw8b5Y6iNE=
+go.yaml.in/yaml/v3 v3.0.3/go.mod h1:tBHosrYAkRZjRAOREWbDnBXUf08JOwYq++0QNwQiWzI=
 golang.org/x/crypto v0.27.0 h1:GXm2NjJrPaiv/h1tb2UH8QfgC/hOf/+z0p6PT8o1w7A=
 golang.org/x/crypto v0.27.0/go.mod h1:1Xngt8kV6Dvbssa53Ziq6Eqn0HqbZi5Z6R0ZpwQzt70=
-golang.org/x/exp v0.0.0-20240909161429-701f63a606c0 h1:e66Fs6Z+fZTbFBAxKfP3PALWBtpfqks2bwGcexMxgtk=
-golang.org/x/exp v0.0.0-20240909161429-701f63a606c0/go.mod h1:2TbTHSBQa924w8M6Xs1QcRcFwyucIwBGpK1p2f1YFFY=
-golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.25.0 h1:r+8e+loiHxRqhXVl6ML1nO3l1+oFoWbnlu2Ehimmi34=
-golang.org/x/sys v0.25.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/mod v0.36.0 h1:JJjpVx6myfUsUdAzZuOSTTmRE0PfZeNWzzvKrP7amb4=
+golang.org/x/mod v0.36.0/go.mod h1:moc6ELqsWcOw5Ef3xVprK5ul/MvtVvkIXLziUOICjUQ=
+golang.org/x/sync v0.20.0 h1:e0PTpb7pjO8GAtTs2dQ6jYa5BWYlMuX047Dco/pItO4=
+golang.org/x/sync v0.20.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
+golang.org/x/tools v0.45.0 h1:18qN3FAooORvApf5XjCXgsuayZOEtXf6JK18I3+ONa8=
+golang.org/x/tools v0.45.0/go.mod h1:LuUGqqaXcXMEFEruIVJVm5mgDD8vww/z/SR1gQ4uE/0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+sigs.k8s.io/yaml v1.6.0 h1:G8fkbMSAFqgEFgh4b1wmtzDnioxFCUgTZhlbj5P9QYs=
+sigs.k8s.io/yaml v1.6.0/go.mod h1:796bPqUfzR/0jLAl6XjHl3Ck7MiyVv8dbTdyT3/pMf4=

internal/generator/prometheusgenerator/prometheus.go

@@ -3,14 +3,14 @@ package prometheusgenerator
 import (
 	"bytes"
 	"fmt"
+	"log/slog"
 	"os"
 	"path"
 	"regexp"
 	"strconv"
 	"text/template"
 
 	"github.com/Masterminds/sprig/v3"
-	"github.com/charmbracelet/log"
 	"github.com/pkg/errors"
 	"github.com/thisisibrahimd/opensloctl/internal/feature"
 	"github.com/thisisibrahimd/opensloctl/internal/generator"
@@ -44,15 +44,15 @@ func (g *PrometheusGenerator) Generate(outputDirectory string) error {
 		return errors.New("output directory can not be empty")
 	}
 
-	log.Info("generating files")
+	slog.Info("generating files")
 	generatedFiles, err := g.createGeneratedFiles()
 	if err != nil {
 		return errors.Wrap(err, "unable to create generated files")
 	}
 
 	for _, generatedFile := range generatedFiles {
 		fullPath := path.Join(outputDirectory, generatedFile.Path)
-		log.Info("writing generated files", "file", fullPath)
+		slog.Info("writing generated files", "file", fullPath)
 		err := os.WriteFile(fullPath, generatedFile.Bytes(), 0664)
 		if err != nil {
 			return errors.Wrap(err, "unable to write file")
@@ -66,7 +66,7 @@ func (g *PrometheusGenerator) createGeneratedFiles() ([]*generator.GeneratedFile
 	var generatedPrometheusRuleFiles []*generator.GeneratedFile
 	// loop through slos
 	for _, slo := range g.specs.V1.SLOs {
-		log.Info("generating prometheus recording rule", "slo", slo.Metadata.Name)
+		slog.Info("generating prometheus recording rule", "slo", slo.Metadata.Name)
 
 		// TODO: support indicator ref
 		// Ensure indicator is present
@@ -79,7 +79,7 @@ func (g *PrometheusGenerator) createGeneratedFiles() ([]*generator.GeneratedFile
 		if slo.Spec.Indicator.Spec.RatioMetric != nil {
 			return nil, fmt.Errorf("ratio metrics are not supported")
 		} else {
-			promQuery = slo.Spec.Indicator.Spec.ThresholdMetric.MetricSource.MetricSourceSpec["query"].(string)
+			promQuery = slo.Spec.Indicator.Spec.ThresholdMetric.MetricSource.Spec["query"].(string)
 		}
 
 		// check if features are enabled
@@ -108,15 +108,15 @@ func (g *PrometheusGenerator) createGeneratedFiles() ([]*generator.GeneratedFile
 		}
 
 		// extract days in time window
-		numberOfDays := numberRegex.FindString(slo.Spec.TimeWindow[0].Duration)
+		numberOfDays := numberRegex.FindString(slo.Spec.TimeWindow[0].Duration.String())
 
 		// template out prom rules
 		tpldData := templates.TemplateData{
 			SloName:                   slo.Metadata.Name,
 			OpensloVersion:            string(slo.APIVersion),
 			PrometheusQuery:           windowedPromQueries[0].Query,
 			WindowedPrometheusQueries: windowedPromQueries,
-			Objective:                 strconv.FormatFloat(slo.Spec.Objectives[0].Target, 'f', -1, 32),
+			Objective:                 strconv.FormatFloat(*slo.Spec.Objectives[0].Target, 'f', -1, 64),
 			IsMulti:                   multiFeatureEnabled,
 			MultiDimensionalLabel:     multiDimSliLabel,
 			TimeWindowDays:            numberOfDays,