chore: Enhance developer tooling and documentation

Adds `actionlint` to the pre-commit configuration to validate GitHub Actions workflows. Significantly expands the `AGENTS.md` file with a comprehensive summary of new features and changes in Go 1.24 and 1.25, along with actionable recommendations for the project. Additionally, normalizes markdown list formatting across various documentation files for consistency.
chore(tooling): Improve CI pipeline and expand pre-commit hooks
2026-01-16 10:22:09 +01:00 · 2025-11-07 07:50:09 +01:00 · 2025-11-07 07:30:11 +01:00 · 2025-11-07 07:06:10 +01:00
24 changed files with 789 additions and 634 deletions
--- a/.dprint.jsonc
+++ b/.dprint.jsonc
@ -1,42 +0,0 @@
-{
-  "typescript": {
-  },
-  "json": {
-  },
-  "markdown": {
-  },
-  "toml": {
-  },
-  "dockerfile": {
-  },
-  "oxc": {
-  },
-  "ruff": {
-  },
-  "jupyter": {
-  },
-  "malva": {
-  },
-  "markup": {
-  },
-  "yaml": {
-  },
-  "excludes": [
-    "**/node_modules",
-    "**/*-lock.json",
-  ],
-  "plugins": [
-    "https://plugins.dprint.dev/typescript-0.95.13.wasm",
-    "https://plugins.dprint.dev/json-0.21.1.wasm",
-    "https://plugins.dprint.dev/markdown-0.20.0.wasm",
-    "https://plugins.dprint.dev/toml-0.7.0.wasm",
-    "https://plugins.dprint.dev/dockerfile-0.3.3.wasm",
-    "https://plugins.dprint.dev/oxc-0.1.0.wasm",
-    "https://plugins.dprint.dev/ruff-0.6.11.wasm",
-    "https://plugins.dprint.dev/jupyter-0.2.1.wasm",
-    "https://plugins.dprint.dev/g-plane/malva-v0.15.1.wasm",
-    "https://plugins.dprint.dev/g-plane/markup_fmt-v0.25.3.wasm",
-    "https://plugins.dprint.dev/g-plane/pretty_yaml-v0.5.1.wasm",
-    "https://plugins.dprint.dev/exec-0.6.0.json@a054130d458f124f9b5c91484833828950723a5af3f8ff2bd1523bd47b83b364",
-  ],
-}
--- a/.github/ISSUE_TEMPLATE/bug_report.yml
+++ b/.github/ISSUE_TEMPLATE/bug_report.yml
@ -1,7 +1,7 @@
 name: Bug Report
 description: Create a report to help us improve
-title: "[BUG] "
-labels: ["bug", "triage"]
+title: '[BUG] '
+labels: ['bug', 'triage']
 body:
  - type: markdown
    attributes:
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@ -5,13 +5,11 @@
 ## Related Issue

 <!-- Link to the issue this PR addresses using the syntax: Fixes #issue_number -->
-
 Fixes #

 ## Type of Change

 <!-- Mark the appropriate option with an "x" -->
-
 - [ ] Bug fix (non-breaking change which fixes an issue)
 - [ ] New feature (non-breaking change which adds functionality)
 - [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
@ -23,7 +21,6 @@ Fixes #
 ## Checklist

 <!-- Mark the items you've completed with an "x" -->
-
 - [ ] My code follows the style guidelines of this project
 - [ ] I have performed a self-review of my code
 - [ ] I have added comments to complex logic
@ -45,7 +42,6 @@ Fixes #
 ## Testing Instructions

 <!-- Provide steps to test the changes, if applicable -->
-
 1.
 2.
 3.
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@ -1,86 +1,86 @@
 version: 2
 updates:
  # Check for updates to GitHub Actions
-  - package-ecosystem: "github-actions"
-    directory: "/"
+  - package-ecosystem: 'github-actions'
+    directory: '/'
    schedule:
-      interval: "weekly"
-      day: "monday"
-      time: "07:00"
-      timezone: "Europe/Amsterdam"
+      interval: 'weekly'
+      day: 'monday'
+      time: '07:00'
+      timezone: 'Europe/Amsterdam'
    open-pull-requests-limit: 2
    labels:
-      - "dependencies"
-      - "dependencies/github-actions"
+      - 'dependencies'
+      - 'dependencies/github-actions'
    commit-message:
-      prefix: "ci"
-      include: "scope"
+      prefix: 'ci'
+      include: 'scope'

  # Check for updates to Docker
-  - package-ecosystem: "docker"
-    directory: "/"
+  - package-ecosystem: 'docker'
+    directory: '/'
    schedule:
-      interval: "weekly"
-      day: "monday"
-      time: "07:00"
-      timezone: "Europe/Amsterdam"
+      interval: 'weekly'
+      day: 'monday'
+      time: '07:00'
+      timezone: 'Europe/Amsterdam'
    open-pull-requests-limit: 2
    labels:
-      - "dependencies"
-      - "dependencies/docker"
+      - 'dependencies'
+      - 'dependencies/docker'
    commit-message:
-      prefix: "docker"
-      include: "scope"
+      prefix: 'docker'
+      include: 'scope'
    groups:
      docker:
        patterns:
-          - "*"
+          - '*'
        update-types:
-          - "minor"
-          - "patch"
+          - 'minor'
+          - 'patch'

  # Check for updates to Docker Compose
-  - package-ecosystem: "docker-compose"
-    directory: "/"
+  - package-ecosystem: 'docker-compose'
+    directory: '/'
    schedule:
-      interval: "weekly"
-      day: "monday"
-      time: "07:00"
-      timezone: "Europe/Amsterdam"
+      interval: 'weekly'
+      day: 'monday'
+      time: '07:00'
+      timezone: 'Europe/Amsterdam'
    open-pull-requests-limit: 2
    labels:
-      - "dependencies"
-      - "dependencies/docker-compose"
+      - 'dependencies'
+      - 'dependencies/docker-compose'
    commit-message:
-      prefix: "docker"
-      include: "scope"
+      prefix: 'docker'
+      include: 'scope'
    groups:
      docker:
        patterns:
-          - "*"
+          - '*'
        update-types:
-          - "minor"
-          - "patch"
+          - 'minor'
+          - 'patch'

  # Check for updates to Go modules
-  - package-ecosystem: "gomod"
-    directory: "/"
+  - package-ecosystem: 'gomod'
+    directory: '/'
    schedule:
-      interval: "weekly"
-      day: "monday"
-      time: "07:00"
-      timezone: "Europe/Amsterdam"
+      interval: 'weekly'
+      day: 'monday'
+      time: '07:00'
+      timezone: 'Europe/Amsterdam'
    open-pull-requests-limit: 2
    labels:
-      - "dependencies"
-      - "dependencies/go"
+      - 'dependencies'
+      - 'dependencies/go'
    commit-message:
-      prefix: "deps"
-      include: "scope"
+      prefix: 'deps'
+      include: 'scope'
    groups:
      go-modules:
        patterns:
-          - "*"
+          - '*'
        update-types:
-          - "minor"
-          - "patch"
+          - 'minor'
+          - 'patch'
--- a/.github/workflows/autofix.yml
+++ b/.github/workflows/autofix.yml
@ -11,18 +11,18 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5

      - name: Install Task
        uses: go-task/setup-task@v1

      - uses: actions/setup-go@v6
-        with: { go-version-file: "go.mod" }
+        with: { go-version-file: 'go.mod' }

      - name: Setup go deps
        run: |
          # Install golangci-lint
-          curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/HEAD/install.sh | sh -s -- -b $(go env GOPATH)/bin
+          curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/HEAD/install.sh | sh -s -- -b "$(go env GOPATH)/bin"

          # Install go-task dependencies
          go install golang.org/x/tools/cmd/goimports@latest
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@ -2,7 +2,7 @@ name: CI

 on:
  push:
-    branches: ["master", "develop"]
+    branches: ['master', 'develop']
  pull_request:

 env:
@ -21,12 +21,12 @@ jobs:
      contents: read
      pull-requests: read
    steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v5
      - uses: actions/setup-go@v6
        with:
          go-version: stable
      - name: golangci-lint
-        uses: golangci/golangci-lint-action@v9
+        uses: golangci/golangci-lint-action@v8
        with: { version: latest }

  test:
@ -42,7 +42,7 @@ jobs:
          - 1.25.x

    steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v5

      - name: Set up Go ${{ matrix.go }}
        uses: actions/setup-go@v6
@ -83,9 +83,9 @@ jobs:
          # Extract test results for summary
          TEST_STATUS=$?
          TOTAL_TESTS=$(grep -c "=== RUN" test-output.log || echo "0")
-          PASSED_TESTS=$(grep -c "--- PASS:" test-output.log || echo "0")
-          FAILED_TESTS=$(grep -c "--- FAIL:" test-output.log || echo "0")
-          SKIPPED_TESTS=$(grep -c "--- SKIP:" test-output.log || echo "0")
+          PASSED_TESTS=$(grep -c -- "--- PASS:" test-output.log || echo "0")
+          FAILED_TESTS=$(grep -c -- "--- FAIL:" test-output.log || echo "0")
+          SKIPPED_TESTS=$(grep -c -- "--- SKIP:" test-output.log || echo "0")

          # Generate test summary
          {
@ -211,7 +211,7 @@ jobs:

      - name: Upload test artifacts
        if: failure()
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v5
        with:
          name: test-results-go-${{ matrix.go }}
          path: |
@ -221,6 +221,7 @@ jobs:

      - name: Run linters
        run: |
+          # Initialize summary
          {
            cat << EOF
          ## 🔍 Static Analysis (Go ${{ matrix.go }})
@ -303,7 +304,7 @@ jobs:
      contents: read
    steps:
      - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5

      - name: Set up Go
        uses: actions/setup-go@v6
@ -350,10 +351,10 @@ jobs:
      contents: read
    if: github.event_name == 'pull_request'
    steps:
-      - name: "Checkout Repository"
-        uses: actions/checkout@v6
+      - name: 'Checkout Repository'
+        uses: actions/checkout@v5

-      - name: "Dependency Review"
+      - name: 'Dependency Review'
        uses: actions/dependency-review-action@v4
        with:
          fail-on-severity: moderate
@ -365,14 +366,14 @@ jobs:
    permissions:
      contents: read
      packages: write
-    needs: [test, docker-test]
+    needs: [test]
    if: |
      github.event_name == 'push' && (github.ref == 'refs/heads/master' ||
      github.ref == 'refs/heads/develop' ||
      startsWith(github.ref, 'refs/heads/feature/docker'))
    steps:
      - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5

      - name: Login to Docker Hub
        uses: docker/login-action@v3
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@ -17,7 +17,7 @@ name: "CodeQL"
 on:
  workflow_call:
  schedule:
-    - cron: "44 16 * * 6"
+    - cron: '44 16 * * 6'
  # push:
  #   branches: [ "master" ]
  # pull_request:
@ -61,7 +61,7 @@ jobs:
        # your codebase is analyzed, see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/codeql-code-scanning-for-compiled-languages
    steps:
    - name: Checkout repository
-        uses: actions/checkout@v6
+      uses: actions/checkout@v5

    # Add any setup steps before running the `github/codeql-action/init` action.
    # This includes steps like installing compilers or runtimes (`actions/setup-node`
--- a/.github/workflows/dependency-review.yml
+++ b/.github/workflows/dependency-review.yml
@ -16,10 +16,10 @@ jobs:
  dependency-review:
    runs-on: ubuntu-latest
    steps:
-      - name: "Checkout Repository"
-        uses: actions/checkout@v6
+      - name: 'Checkout Repository'
+        uses: actions/checkout@v5

-      - name: "Dependency Review"
+      - name: 'Dependency Review'
        uses: actions/dependency-review-action@v4
        with:
          fail-on-severity: moderate
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@ -20,7 +20,7 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
        with:
          fetch-depth: 0

@ -82,13 +82,13 @@ jobs:
  docker:
    name: Docker Build & Push
    runs-on: ubuntu-latest
-    needs: ["release"]
+    needs: ['release']
    permissions:
      contents: read
      packages: write
    steps:
      - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5

      - name: Login to Docker Hub
        uses: docker/login-action@v3
--- a/.golangci.yml
+++ b/.golangci.yml
@ -349,15 +349,7 @@ linters:

    # stylecheck settings
    staticcheck:
-      checks: [
-        "all",
-        "-ST1000",
-        "-ST1003",
-        "-ST1016",
-        "-ST1020",
-        "-ST1021",
-        "-ST1022",
-      ]
+      checks: ["all", "-ST1000", "-ST1003", "-ST1016", "-ST1020", "-ST1021", "-ST1022"]

    # maintidx settings
    maintidx:
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@ -9,7 +9,7 @@ repos:
        exclude: '^\.github/ISSUE_TEMPLATE/.*\.yml$'
      - id: end-of-file-fixer
      - id: mixed-line-ending
-        args: ["--fix=lf"]
+        args: ['--fix=lf']

      # File validation
      - id: check-yaml
@ -23,7 +23,7 @@ repos:
      - id: check-merge-conflict
      - id: check-case-conflict
      - id: no-commit-to-branch
-        args: ["--branch=master", "--branch=main"]
+        args: ['--branch=master', '--branch=main']

      # File structure
      - id: check-added-large-files
@ -40,7 +40,7 @@ repos:
      entry: actionlint
      minimum_pre_commit_version: 3.0.0
  - repo: https://github.com/golangci/golangci-lint
-    rev: v2.7.2
+    rev: v2.6.1
    hooks:
      - id: golangci-lint
        name: golangci-lint
--- a/AGENTS.md
+++ b/AGENTS.md
@ -1,87 +1,36 @@
 # Agent Guidelines for articulate-parser

-A Go CLI tool that parses Articulate Rise courses from URLs or local JSON files and exports them to Markdown, HTML, or DOCX formats.
-
-## Repository Info
-
- **GitHub**: https://github.com/kjanat/articulate-parser
- **Default branch**: `master` (not `main`)
-
 ## Build/Test Commands

-### Primary Commands (using Taskfile)
-
-```bash
-task build              # Build binary to bin/articulate-parser
-task test               # Run all tests with race detection
-task lint               # Run all linters (vet, fmt, staticcheck, golangci-lint)
-task fmt                # Format all Go files
-task ci                 # Full CI pipeline: deps, lint, test with coverage, build
-task qa                 # Quick QA: fmt + lint + test
-```
-
-### Direct Go Commands
-
-```bash
-# Build
-go build -o bin/articulate-parser main.go
-
-# Run all tests
-go test -race -timeout 5m ./...
-
-# Run single test by name
-go test -v -race -run ^TestMarkdownExporter_Export$ ./internal/exporters
-
-# Run tests in specific package
-go test -v -race ./internal/services
-
-# Run tests matching pattern
-go test -v -race -run "TestParser" ./...
-
-# Test with coverage
-go test -race -coverprofile=coverage/coverage.out -covermode=atomic ./...
-go tool cover -html=coverage/coverage.out -o coverage/coverage.html
-
-# Benchmarks
-go test -bench=. -benchmem ./...
-go test -bench=BenchmarkMarkdownExporter ./internal/exporters
-```
-
-### Security & Auditing
-
-```bash
-task security:check     # Run gosec security scanner
-task security:audit     # Run govulncheck for vulnerabilities
-```
+- **Build**: `task build` or `go build -o bin/articulate-parser main.go`
+- **Run tests**: `task test` or `go test -race -timeout 5m ./...`
+- **Run single test**: `go test -v -race -run ^TestName$ ./path/to/package`
+- **Test with coverage**:
+  - `task test:coverage` or
+  - `go test -race -coverprofile=coverage/coverage.out -covermode=atomic ./...`
+- **Lint**: `task lint` (runs vet, fmt check, staticcheck, golangci-lint)
+- **Format**: `task fmt` or `gofmt -s -w .`
+- **CI checks**: `task ci` (deps, lint, test with coverage, build)

 ## Code Style Guidelines

 ### Imports

 - Use `goimports` with local prefix: `github.com/kjanat/articulate-parser`
- Order: stdlib, blank line, external packages, blank line, internal packages
-
-```go
-import (
-    "context"
-    "fmt"
-
-    "github.com/fumiama/go-docx"
-
-    "github.com/kjanat/articulate-parser/internal/interfaces"
-)
-```
+- Order: stdlib, external, internal packages
+- Group related imports together

 ### Formatting

 - Use `gofmt -s` (simplify) and `gofumpt` with extra rules
 - Function length: max 100 lines, 50 statements
- Cyclomatic complexity: max 15; Cognitive complexity: max 20
+- Cyclomatic complexity: max 15
+- Cognitive complexity: max 20

 ### Types & Naming

 - Use interface-based design (see `internal/interfaces/`)
- Exported types/functions require godoc comments ending with period
+- Export types/functions with clear godoc comments ending with period
 - Use descriptive names: `ArticulateParser`, `MarkdownExporter`
 - Receiver names: short (1-2 chars), consistent per type

@ -92,20 +41,6 @@ import (
 - Check all error returns (enforced by `errcheck`)
 - Document error handling rationale in defer blocks when ignoring close errors

-```go
-// Good: Error wrapping with context
-if err := json.Unmarshal(body, &course); err != nil {
-    return nil, fmt.Errorf("failed to unmarshal JSON: %w", err)
-}
-
-// Good: Documented defer with error handling
-defer func() {
-    if err := resp.Body.Close(); err != nil {
-        p.Logger.Warn("failed to close response body", "error", err)
-    }
-}()
-```
-
 ### Comments

 - All exported types/functions require godoc comments
@ -114,70 +49,379 @@ defer func() {

 ### Security

- Use `#nosec` with justification for deliberate security exceptions
- G304: File paths from CLI args; G306: Export file permissions
-
-```go
-// #nosec G304 - File path provided by user via CLI argument
-data, err := os.ReadFile(filePath)
-```
+- Use `#nosec` with justification for deliberate security exceptions (G304 for CLI file paths, G306 for export file permissions)
+- Run `gosec` and `govulncheck` for security audits

 ### Testing

- Enable race detection: `-race` flag always
+- Enable race detection: `-race` flag
 - Use table-driven tests where applicable
 - Mark test helpers with `t.Helper()`
- Use `t.TempDir()` for temporary files
 - Benchmarks in `*_bench_test.go`, examples in `*_example_test.go`
- Test naming: `Test<Type>_<Method>` or `Test<Function>`
-
-```go
-func TestMarkdownExporter_ProcessItemToMarkdown_AllTypes(t *testing.T) {
-    tests := []struct {
-        name, itemType, expectedText string
-    }{
-        {"text item", "text", ""},
-        {"divider item", "divider", "---"},
-    }
-    for _, tt := range tests {
-        t.Run(tt.name, func(t *testing.T) {
-            // test implementation
-        })
-    }
-}
-```

 ### Dependencies

- Minimal external dependencies (go-docx, golang.org/x/net, golang.org/x/text)
+- Minimal external dependencies (currently: go-docx, golang.org/x/net, golang.org/x/text)
 - Run `task deps:tidy` after adding/removing dependencies
- CGO disabled by default (`CGO_ENABLED=0`)

-## Project Structure
+---

-```
-articulate-parser/
-  internal/
-    config/              # Configuration loading
-    exporters/           # Export implementations (markdown, html, docx)
-    interfaces/          # Core interfaces (Exporter, CourseParser, Logger)
-    models/              # Data models (Course, Lesson, Item, Media)
-    services/            # Core services (parser, html cleaner, app, logger)
-    version/             # Version information
-  main.go                # Application entry point
+## Go 1.24 & 1.25 New Features Reference
+
+This project uses Go 1.24+. Below is a comprehensive summary of new features and changes in Go 1.24 and 1.25 that may be relevant for development and maintenance.
+
+### Go 1.24 Major Changes (Released February 2025)
+
+#### Language Features
+
+**Generic Type Aliases**
+
+- Type aliases can now be parameterized with type parameters
+- Example: `type List[T any] = []T`
+- Can be disabled via `GOEXPERIMENT=noaliastypeparams` (removed in 1.25)
+
+#### Tooling Enhancements
+
+**Module Tool Dependencies**
+
+- New `tool` directive in go.mod tracks executable dependencies
+- Use `go get -tool <package>` to add tool dependencies
+- Use `go install tool` and `go get tool` to manage them
+- Eliminates need for blank imports in `tools.go` files
+
+**Build Output Formatting**
+
+- Both `go build` and `go test` support `-json` flag for structured JSON output
+- New action types distinguish build output from test results
+
+**Authentication**
+
+- New `GOAUTH` environment variable provides flexible authentication for private modules
+
+**Automatic Version Tracking**
+
+- `go build` automatically sets main module version in binaries based on VCS tags
+- Adds `+dirty` suffix for uncommitted changes
+
+**Cgo Performance Improvements**
+
+- New `#cgo noescape` annotation: Prevents escape analysis overhead for C function calls
+- New `#cgo nocallback` annotation: Indicates C function won't call back to Go
+
+**Toolchain Tracing**
+
+- `GODEBUG=toolchaintrace=1` enables tracing of toolchain selection
+
+#### Runtime & Performance
+
+**Performance Improvements**
+
+- **2-3% CPU overhead reduction** across benchmark suites
+- New Swiss Tables-based map implementation (faster lookups)
+  - Disable via `GOEXPERIMENT=noswissmap`
+- More efficient small object allocation
+- Redesigned runtime-internal mutexes
+  - Disable via `GOEXPERIMENT=nospinbitmutex`
+
+#### Compiler & Linker
+
+**Method Receiver Restrictions**
+
+- Methods on cgo-generated types now prevented (both directly and through aliases)
+
+**Build IDs**
+
+- Linkers generate GNU build IDs (ELF) and UUIDs (macOS) by default
+- Disable via `-B none` flag
+
+#### Standard Library Additions
+
+**File System Safety - `os.Root`**
+
+- New `os.Root` type enables directory-limited operations
+- Prevents path escape and symlink breakouts
+- Essential for sandboxed file operations
+
+**Cryptography Expansion**
+
+- `crypto/mlkem`: ML-KEM-768/1024 post-quantum key exchange (FIPS 203)
+- `crypto/hkdf`: HMAC-based Extract-and-Expand KDF (RFC 5869)
+- `crypto/pbkdf2`: Password-based key derivation (RFC 8018)
+- `crypto/sha3`: SHA-3 and SHAKE functions (FIPS 202)
+
+**FIPS 140-3 Support**
+
+- New `GOFIPS140` environment variable enables FIPS mode
+- New `fips140` GODEBUG setting for cryptographic module compliance
+
+**Weak References - `weak` Package**
+
+- New `weak` package provides low-level weak pointers
+- Enables memory-efficient structures like weak maps and caches
+- Useful for preventing memory leaks in cache implementations
+
+**Testing Improvements**
+
+- `testing.B.Loop()`: Cleaner syntax replacing manual `b.N` iteration
+- Prevents compiler from optimizing away benchmarked code
+- New `testing/synctest` package (experimental) for testing concurrent code with fake clocks
+
+**Iterator Support**
+
+- Multiple packages now offer iterator-returning variants:
+  - `bytes`: Iterator-based functions
+  - `strings`: Iterator-based functions
+  - `go/types`: Iterator support
+
+#### Security Enhancements
+
+**TLS Post-Quantum Cryptography**
+
+- `X25519MLKEM768` hybrid key exchange enabled by default in TLS
+- Provides quantum-resistant security
+
+**Encrypted Client Hello (ECH)**
+
+- TLS servers can enable ECH via `Config.EncryptedClientHelloKeys`
+- Protects client identity during TLS handshake
+
+**RSA Key Validation**
+
+- Keys smaller than 1024 bits now rejected by default
+- Use `GODEBUG=rsa1024min=0` to revert (testing only)
+
+**Constant-Time Execution**
+
+- New `crypto/subtle.WithDataIndependentTiming()` enables architecture-specific timing guarantees
+- Helps prevent timing attacks
+
+#### Deprecations & Removals
+
+- `runtime.GOROOT()`: Deprecated; use system path instead
+- `crypto/cipher` OFB/CFB modes: Deprecated (unauthenticated encryption)
+- `x509sha1` GODEBUG: Removed; SHA-1 certificates no longer verified
+- Experimental `X25519Kyber768Draft00`: Removed
+
+#### Platform Changes
+
+- **Linux**: Now requires kernel 3.2+ (enforced)
+- **macOS**: Go 1.24 is final release supporting Big Sur
+- **Windows/ARM 32-bit**: Marked broken
+- **WebAssembly**:
+  - New `go:wasmexport` directive
+  - Reactor/library builds supported via `-buildmode=c-shared`
+
+#### Bootstrap Requirements
+
+- Go 1.24 requires Go 1.22.6+ for bootstrapping
+- Go 1.26 will require Go 1.24+
+
+---
+
+### Go 1.25 Major Changes (Released August 2025)
+
+#### Language Changes
+
+- No breaking language changes
+- "Core types" concept removed from specification (replaced with clearer prose)
+
+#### Tooling Improvements
+
+**Go Command Enhancements**
+
+- `go build -asan`: Now defaults to leak detection at program exit
+- New `go.mod ignore` directive: Specify directories for go command to ignore
+- `go doc -http`: Starts documentation server and opens in browser
+- `go version -m -json`: Prints JSON-encoded BuildInfo structures
+- Module path resolution now supports subdirectories using `<meta>` syntax
+- New `work` package pattern matches all packages in work/workspace modules
+- Removed automatic toolchain line additions when updating `go` version
+
+**Vet Analyzers**
+
+- **"waitgroup"**: Detects misplaced `sync.WaitGroup.Add` calls
+- **"hostport"**: Warns against using `fmt.Sprintf` for constructing addresses
+  - Recommends `net.JoinHostPort` instead
+
+#### Runtime Enhancements
+
+**Container-Aware GOMAXPROCS**
+
+- Linux now respects cgroup CPU bandwidth limits
+- All OSes periodically update GOMAXPROCS if CPU availability changes
+- Disable via environment variables or GODEBUG settings
+- Critical for containerized applications
+
+**New Garbage Collector - "Green Tea GC"**
+
+- Experimental `GOEXPERIMENT=greenteagc` enables new GC
+- **10-40% reduction in garbage collection overhead**
+- Significant for GC-sensitive applications
+
+**Trace Flight Recorder**
+
+- New `runtime/trace.FlightRecorder` API
+- Captures execution traces in in-memory ring buffer
+- Essential for debugging rare events and production issues
+
+**Other Runtime Changes**
+
+- Simplified unhandled panic output
+- VMA names on Linux identify memory purpose (debugging aid)
+- New `SetDefaultGOMAXPROCS` function resets GOMAXPROCS to defaults
+
+#### Compiler Fixes & Improvements
+
+**Critical Nil Pointer Bug Fix**
+
+- Fixed Go 1.21 regression where nil pointer checks were incorrectly delayed
+- ⚠️ **May cause previously passing code to now panic** (correct behavior)
+- Review code for assumptions about delayed nil checks
+
+**DWARF5 Support**
+
+- Debug information now uses DWARF version 5
+- Reduces binary size and linking time
+- Better debugging experience
+
+**Faster Slices**
+
+- Expanded stack allocation for slice backing stores
+- Improved slice performance
+
+#### Linker
+
+- New `-funcalign=N` option specifies function entry alignment
+
+#### Standard Library Highlights
+
+**New Packages**
+
+1. **`testing/synctest`** (Promoted from Experimental)
+   - Concurrent code testing with virtualized time
+   - Control time progression in tests
+   - Essential for testing time-dependent concurrent code
+
+2. **`encoding/json/v2`** (Experimental)
+   - **Substantially better decoding performance**
+   - Improved API design
+   - Backward compatible with v1
+
+**Major Package Updates**
+
+| Package | Key Changes |
+|---------|------------|
+| `crypto` | New `MessageSigner` interface and `SignMessage` function |
+| `crypto/ecdsa` | New raw key parsing/serialization functions |
+| `crypto/rsa` | **Key generation now 3x faster** |
+| `crypto/sha1` | **Hashing 2x faster on amd64 with SHA-NI** |
+| `crypto/tls` | New `CurveID` field; SHA-1 algorithms disallowed in TLS 1.2 |
+| `net` | Windows now supports file-to-connection conversion; IPv6 multicast improvements |
+| `net/http` | **New `CrossOriginProtection` middleware for CSRF defense** |
+| `os` | Windows async I/O support; `Root` type expanded with 12 new methods |
+| `sync` | **New `WaitGroup.Go` method for convenient goroutine creation** |
+| `testing` | New `Attr`, `Output` methods; `AllocsPerRun` panics with parallel tests |
+| `unique` | More eager and parallel reclamation of interned values |
+
+#### Performance Notes
+
+**Performance Improvements**
+
+- ECDSA and Ed25519 signing **4x faster** in FIPS 140-3 mode
+- SHA3 hashing **2x faster** on Apple M processors
+- AMD64 fused multiply-add instructions in v3+ mode
+  - ⚠️ **Changes floating-point results** (within IEEE 754 spec)
+
+**Performance Regressions**
+
+- SHA-1, SHA-256, SHA-512 slower without AVX2
+  - Most servers post-2015 support AVX2
+
+#### Platform Changes
+
+- **macOS**: Requires version 12 Monterey or later
+- **Windows**: 32-bit windows/arm port marked for removal in Go 1.26
+- **Loong64**: Race detector now supported
+- **RISC-V**:
+  - Plugin build mode support
+  - New `GORISCV64=rva23u64` environment variable value
+
+#### Deprecations
+
+- `go/ast` functions: `FilterPackage`, `PackageExports`, `MergePackageFiles`
+- `go/parser.ParseDir` function
+- Old `testing/synctest` API (when `GOEXPERIMENT=synctest` set)
+
+---
+
+### Actionable Recommendations for This Project
+
+#### Immediate Opportunities
+
+1. **Replace `sync.WaitGroup` patterns with `WaitGroup.Go()`** (Go 1.25)
+
+   ```go
+   // Old pattern
+   wg.Add(1)
+   go func() {
+       defer wg.Done()
+       // work
+   }()
+   
+   // New pattern (Go 1.25)
+   wg.Go(func() {
+       // work
+   })
   ```

-## Common Patterns
+2. **Use `testing.B.Loop()` in benchmarks** (Go 1.24)

-### Creating a new exporter
+   ```go
+   // Old pattern
+   for i := 0; i < b.N; i++ {
+       // benchmark code
+   }
   
-1. Implement `interfaces.Exporter` interface
-2. Add factory method to `internal/exporters/factory.go`
-3. Register format in `NewFactory()`
-4. Add tests following existing patterns
+   // New pattern (Go 1.24)
+   for b.Loop() {
+       // benchmark code
+   }
+   ```

-### Adding configuration options
+3. **Consider `os.Root` for file operations** (Go 1.24)
+   - Prevents path traversal vulnerabilities
+   - Safer for user-provided file paths

-1. Add field to `Config` struct in `internal/config/config.go`
-2. Load from environment variable with sensible default
-3. Document in config struct comments
+4. **Enable Green Tea GC for testing** (Go 1.25)
+   - Test with `GOEXPERIMENT=greenteagc`
+   - May reduce GC overhead by 10-40%
+
+5. **Leverage container-aware GOMAXPROCS** (Go 1.25)
+   - No changes needed; automatic in containers
+   - Improves resource utilization
+
+6. **Review floating-point operations** (Go 1.25)
+   - AMD64 v3+ uses FMA instructions
+   - May change floating-point results (within spec)
+
+7. **Watch nil pointer checks** (Go 1.25)
+   - Compiler bug fix may expose latent nil pointer bugs
+   - Review crash reports carefully
+
+#### Future Considerations
+
+1. **Evaluate `encoding/json/v2`** when stable
+   - Better performance for JSON operations
+   - Currently experimental in Go 1.25
+
+2. **Adopt tool directives** in go.mod
+   - Cleaner dependency management for build tools
+   - Remove `tools.go` if present
+
+3. **Enable FIPS mode if required**
+   - Use `GOFIPS140=1` for compliance
+   - Performance improvements in Go 1.25 (4x faster signing)
+
+4. **Use `runtime/trace.FlightRecorder`** for production debugging
+   - Capture traces of rare events
+   - Minimal overhead when not triggered
--- a/README.md
+++ b/README.md
@ -226,7 +226,7 @@ docker run --rm ghcr.io/kjanat/articulate-parser:latest --help
 ### Available Tags

 | Tag | Description | Use Case |
-| --------------------- | ------------------------------------------- | ---------------------- |
+|-----|-------------|----------|
 | `latest` | Latest stable release from master branch | Production use |
 | `edge` | Latest development build from master branch | Testing new features |
 | `v1.x.x` | Specific version releases | Production pinning |
@ -314,7 +314,7 @@ docker build --build-arg VERSION=local --build-arg BUILD_TIME=$(date -u +%Y-%m-%
 The Docker image supports the following build-time arguments:

 | Argument | Description | Default |
-| ------------ | ------------------------------------- | -------------- |
+|----------|-------------|---------|
 | `VERSION` | Version string embedded in the binary | `dev` |
 | `BUILD_TIME` | Build timestamp | Current time |
 | `GIT_COMMIT` | Git commit hash | Current commit |
@ -460,9 +460,7 @@ This is a utility tool for educational content conversion. Please ensure you hav
 [Go report]: https://goreportcard.com/report/github.com/kjanat/articulate-parser
 [gomod]: go.mod
 [Issues]: https://github.com/kjanat/articulate-parser/issues
-
 <!-- [Latest release]: https://github.com/kjanat/articulate-parser/releases/latest -->
-
 [MIT License]: LICENSE
 [Package documentation]: https://godoc.org/github.com/kjanat/articulate-parser
 [Tags]: https://github.com/kjanat/articulate-parser/tags
--- a/Taskfile.yml
+++ b/Taskfile.yml
@ -1,7 +1,7 @@
 # yaml-language-server: $schema=https://taskfile.dev/schema.json
 # Articulate Parser - Task Automation
 # https://taskfile.dev
-version: "3"
+version: '3'

 # Global output settings
 output: prefixed
@ -47,11 +47,11 @@ vars:

 # Environment variables
 env:
-  CGO_ENABLED: "{{.CGO_ENABLED}}"
+  CGO_ENABLED: '{{.CGO_ENABLED}}'
  GO111MODULE: on

 # Load .env files if present
-dotenv: [".env", ".env.local"]
+dotenv: ['.env', '.env.local']

 # Task definitions
 tasks:
@ -69,12 +69,12 @@ tasks:
    interactive: true
    watch: true
    sources:
-      - "**/*.go"
+      - '**/*.go'
      - go.mod
      - go.sum
    cmds:
      - task: build
-      - "{{.OUTPUT_DIR}}/{{.APP_NAME}}{{.EXE_EXT}} --help"
+      - '{{.OUTPUT_DIR}}/{{.APP_NAME}}{{.EXE_EXT}} --help'

  # Build tasks
  build:
@ -82,14 +82,14 @@ tasks:
    aliases: [b]
    deps: [clean-bin]
    sources:
-      - "**/*.go"
+      - '**/*.go'
      - go.mod
      - go.sum
    generates:
-      - "{{.OUTPUT_DIR}}/{{.APP_NAME}}{{.EXE_EXT}}"
+      - '{{.OUTPUT_DIR}}/{{.APP_NAME}}{{.EXE_EXT}}'
    cmds:
      - task: mkdir
-        vars: { DIR: "{{.OUTPUT_DIR}}" }
+        vars: { DIR: '{{.OUTPUT_DIR}}' }
      - go build {{.GO_FLAGS}} -ldflags="{{.LDFLAGS}}" -o {{.OUTPUT_DIR}}/{{.APP_NAME}}{{.EXE_EXT}} {{.MAIN_FILE}}
    method: checksum

@ -99,25 +99,25 @@ tasks:
    deps: [clean-bin]
    cmds:
      - task: mkdir
-        vars: { DIR: "{{.OUTPUT_DIR}}" }
+        vars: { DIR: '{{.OUTPUT_DIR}}' }
      - for:
          matrix:
            GOOS: [linux, darwin, windows]
            GOARCH: [amd64, arm64]
        task: build:platform
        vars:
-          TARGET_GOOS: "{{.ITEM.GOOS}}"
-          TARGET_GOARCH: "{{.ITEM.GOARCH}}"
+          TARGET_GOOS: '{{.ITEM.GOOS}}'
+          TARGET_GOARCH: '{{.ITEM.GOARCH}}'
      - echo "Built binaries for all platforms in {{.OUTPUT_DIR}}/"

  build:platform:
    internal: true
    vars:
      TARGET_EXT: '{{if eq .TARGET_GOOS "windows"}}.exe{{end}}'
-      OUTPUT_FILE: "{{.OUTPUT_DIR}}/{{.APP_NAME}}-{{.TARGET_GOOS}}-{{.TARGET_GOARCH}}{{.TARGET_EXT}}"
+      OUTPUT_FILE: '{{.OUTPUT_DIR}}/{{.APP_NAME}}-{{.TARGET_GOOS}}-{{.TARGET_GOARCH}}{{.TARGET_EXT}}'
    env:
-      GOOS: "{{.TARGET_GOOS}}"
-      GOARCH: "{{.TARGET_GOARCH}}"
+      GOOS: '{{.TARGET_GOOS}}'
+      GOARCH: '{{.TARGET_GOARCH}}'
    cmds:
      - echo "Building {{.OUTPUT_FILE}}..."
      - go build {{.GO_FLAGS}} -ldflags="{{.LDFLAGS}}" -o "{{.OUTPUT_FILE}}" {{.MAIN_FILE}}
@ -134,8 +134,6 @@ tasks:
  test:
    desc: Run all tests
    aliases: [t]
-    env:
-      CGO_ENABLED: 1
    cmds:
      - go test {{.GO_FLAGS}} -race -timeout {{.TEST_TIMEOUT}} ./...

@ -143,11 +141,9 @@ tasks:
    desc: Run tests with coverage report
    aliases: [cover, cov]
    deps: [clean-coverage]
-    env:
-      CGO_ENABLED: 1
    cmds:
      - task: mkdir
-        vars: { DIR: "{{.COVERAGE_DIR}}" }
+        vars: { DIR: '{{.COVERAGE_DIR}}' }
      - go test {{.GO_FLAGS}} -race -coverprofile={{.COVERAGE_DIR}}/coverage.out -covermode=atomic -timeout {{.TEST_TIMEOUT}} ./...
      - go tool cover -html={{.COVERAGE_DIR}}/coverage.out -o {{.COVERAGE_DIR}}/coverage.html
      - go tool cover -func={{.COVERAGE_DIR}}/coverage.out
@ -156,8 +152,6 @@ tasks:
  test:verbose:
    desc: Run tests with verbose output
    aliases: [tv]
-    env:
-      CGO_ENABLED: 1
    cmds:
      - go test -v -race -timeout {{.TEST_TIMEOUT}} ./...

@ -166,7 +160,7 @@ tasks:
    aliases: [tw]
    watch: true
    sources:
-      - "**/*.go"
+      - '**/*.go'
    cmds:
      - task: test

@ -178,8 +172,6 @@ tasks:

  test:integration:
    desc: Run integration tests
-    env:
-      CGO_ENABLED: 1
    status:
      - '{{if eq OS "windows"}}if not exist "main_test.go" exit 1{{else}}test ! -f "main_test.go"{{end}}'
    cmds:
@ -324,13 +316,13 @@ tasks:
  docker:run:
    desc: Run Docker container
    aliases: [dr]
-    deps: [docker:build]
+    deps: ['docker:build']
    cmds:
      - docker run --rm {{.APP_NAME}}:{{.VERSION}} --help

  docker:test:
    desc: Test Docker image
-    deps: [docker:build]
+    deps: ['docker:build']
    cmds:
      - docker run --rm {{.APP_NAME}}:{{.VERSION}} --version
      - echo "Docker image tested successfully"
@ -360,14 +352,14 @@ tasks:
    internal: true
    cmds:
      - task: rmdir
-        vars: { DIR: "{{.OUTPUT_DIR}}" }
+        vars: { DIR: '{{.OUTPUT_DIR}}' }

  clean-coverage:
    desc: Remove coverage files
    internal: true
    cmds:
      - task: rmdir
-        vars: { DIR: "{{.COVERAGE_DIR}}" }
+        vars: { DIR: '{{.COVERAGE_DIR}}' }

  clean-cache:
    desc: Clean Go build and test cache
@ -418,10 +410,10 @@ tasks:
    requires:
      vars: [VERSION]
    preconditions:
-      - sh: "git diff --exit-code"
-        msg: "Working directory is not clean"
-      - sh: "git diff --cached --exit-code"
-        msg: "Staging area is not clean"
+      - sh: 'git diff --exit-code'
+        msg: 'Working directory is not clean'
+      - sh: 'git diff --cached --exit-code'
+        msg: 'Staging area is not clean'
    cmds:
      - git tag -a v{{.VERSION}} -m "Release v{{.VERSION}}"
      - echo "Tagged v{{.VERSION}}"
@ -442,7 +434,7 @@ tasks:

  docs:coverage:
    desc: Open coverage report in browser
-    deps: [test:coverage]
+    deps: ['test:coverage']
    cmds:
      - '{{if eq OS "darwin"}}open {{.COVERAGE_DIR}}/coverage.html{{else if eq OS "windows"}}start {{.COVERAGE_DIR}}/coverage.html{{else}}xdg-open {{.COVERAGE_DIR}}/coverage.html 2>/dev/null || echo "Please open {{.COVERAGE_DIR}}/coverage.html in your browser"{{end}}'

@ -506,11 +498,11 @@ tasks:
      - '{{if eq OS "windows"}}if not exist "articulate-sample.json" exit 1{{else}}test ! -f "articulate-sample.json"{{end}}'
    deps: [build]
    cmds:
-      - "{{.OUTPUT_DIR}}/{{.APP_NAME}}{{.EXE_EXT}} articulate-sample.json md output-demo.md"
+      - '{{.OUTPUT_DIR}}/{{.APP_NAME}}{{.EXE_EXT}} articulate-sample.json md output-demo.md'
      - echo "Demo Markdown created{{:}} output-demo.md"
      - defer:
          task: rmfile
-          vars: { FILE: "output-demo.md" }
+          vars: { FILE: 'output-demo.md' }

  demo:html:
    desc: Demo - Convert sample to HTML
@ -518,11 +510,11 @@ tasks:
      - '{{if eq OS "windows"}}if not exist "articulate-sample.json" exit 1{{else}}test ! -f "articulate-sample.json"{{end}}'
    deps: [build]
    cmds:
-      - "{{.OUTPUT_DIR}}/{{.APP_NAME}}{{.EXE_EXT}} articulate-sample.json html output-demo.html"
+      - '{{.OUTPUT_DIR}}/{{.APP_NAME}}{{.EXE_EXT}} articulate-sample.json html output-demo.html'
      - echo "Demo HTML created{{:}} output-demo.html"
      - defer:
          task: rmfile
-          vars: { FILE: "output-demo.html" }
+          vars: { FILE: 'output-demo.html' }

  demo:docx:
    desc: Demo - Convert sample to DOCX
@ -530,11 +522,11 @@ tasks:
      - '{{if eq OS "windows"}}if not exist "articulate-sample.json" exit 1{{else}}test ! -f "articulate-sample.json"{{end}}'
    deps: [build]
    cmds:
-      - "{{.OUTPUT_DIR}}/{{.APP_NAME}}{{.EXE_EXT}} articulate-sample.json docx output-demo.docx"
+      - '{{.OUTPUT_DIR}}/{{.APP_NAME}}{{.EXE_EXT}} articulate-sample.json docx output-demo.docx'
      - echo "Demo DOCX created{{:}} output-demo.docx"
      - defer:
          task: rmfile
-          vars: { FILE: "output-demo.docx" }
+          vars: { FILE: 'output-demo.docx' }

  # Performance profiling
  profile:cpu:
@ -544,7 +536,7 @@ tasks:
      - go tool pprof -http=:8080 cpu.prof
      - defer:
          task: rmfile
-          vars: { FILE: "cpu.prof" }
+          vars: { FILE: 'cpu.prof' }

  profile:mem:
    desc: Run memory profiling
@ -553,14 +545,14 @@ tasks:
      - go tool pprof -http=:8080 mem.prof
      - defer:
          task: rmfile
-          vars: { FILE: "mem.prof" }
+          vars: { FILE: 'mem.prof' }

  # Git hooks
  hooks:install:
    desc: Install git hooks
    cmds:
      - task: mkdir
-        vars: { DIR: ".git/hooks" }
+        vars: { DIR: '.git/hooks' }
      - '{{if eq OS "windows"}}echo "#!/bin/sh" > .git/hooks/pre-commit && echo "task lint:fmt" >> .git/hooks/pre-commit{{else}}cat > .git/hooks/pre-commit << ''EOF''{{printf "\n"}}#!/bin/sh{{printf "\n"}}task lint:fmt{{printf "\n"}}EOF{{printf "\n"}}chmod +x .git/hooks/pre-commit{{end}}'
      - echo "Git hooks installed"

--- a/go.mod
+++ b/go.mod
@ -2,15 +2,13 @@ module github.com/kjanat/articulate-parser

 go 1.24.0

-toolchain go1.25.5
-
 require (
 	github.com/fumiama/go-docx v0.0.0-20250506085032-0c30fd09304b
-	golang.org/x/net v0.48.0
-	golang.org/x/text v0.33.0
+	golang.org/x/net v0.46.0
+	golang.org/x/text v0.30.0
 )

 require (
 	github.com/fumiama/imgsz v0.0.4 // indirect
-	golang.org/x/image v0.34.0 // indirect
+	golang.org/x/image v0.32.0 // indirect
 )
--- a/go.sum
+++ b/go.sum
@ -2,9 +2,9 @@ github.com/fumiama/go-docx v0.0.0-20250506085032-0c30fd09304b h1:/mxSugRc4SgN7Xg
 github.com/fumiama/go-docx v0.0.0-20250506085032-0c30fd09304b/go.mod h1:ssRF0IaB1hCcKIObp3FkZOsjTcAHpgii70JelNb4H8M=
 github.com/fumiama/imgsz v0.0.4 h1:Lsasu2hdSSFS+vnD+nvR1UkiRMK7hcpyYCC0FzgSMFI=
 github.com/fumiama/imgsz v0.0.4/go.mod h1:bISOQVTlw9sRytPwe8ir7tAaEmyz9hSNj9n8mXMBG0E=
-golang.org/x/image v0.34.0 h1:33gCkyw9hmwbZJeZkct8XyR11yH889EQt/QH4VmXMn8=
-golang.org/x/image v0.34.0/go.mod h1:2RNFBZRB+vnwwFil8GkMdRvrJOFd1AzdZI6vOY+eJVU=
-golang.org/x/net v0.48.0 h1:zyQRTTrjc33Lhh0fBgT/H3oZq9WuvRR5gPC70xpDiQU=
-golang.org/x/net v0.48.0/go.mod h1:+ndRgGjkh8FGtu1w1FGbEC31if4VrNVMuKTgcAAnQRY=
-golang.org/x/text v0.33.0 h1:B3njUFyqtHDUI5jMn1YIr5B0IE2U0qck04r6d4KPAxE=
-golang.org/x/text v0.33.0/go.mod h1:LuMebE6+rBincTi9+xWTY8TztLzKHc/9C1uBCG27+q8=
+golang.org/x/image v0.32.0 h1:6lZQWq75h7L5IWNk0r+SCpUJ6tUVd3v4ZHnbRKLkUDQ=
+golang.org/x/image v0.32.0/go.mod h1:/R37rrQmKXtO6tYXAjtDLwQgFLHmhW+V6ayXlxzP2Pc=
+golang.org/x/net v0.46.0 h1:giFlY12I07fugqwPuWJi68oOnpfqFnJIJzaIIm2JVV4=
+golang.org/x/net v0.46.0/go.mod h1:Q9BGdFy1y4nkUwiLvT5qtyhAnEHgnQ/zd8PfU6nc210=
+golang.org/x/text v0.30.0 h1:yznKA/E9zq54KzlzBEAWn1NXSQ8DIp/NYMy88xJjl4k=
+golang.org/x/text v0.30.0/go.mod h1:yDdHFIX9t+tORqspjENWgzaCVXgk0yYnYuSZ8UzzBVM=
--- a/internal/exporters/docx.go
+++ b/internal/exporters/docx.go
@ -16,13 +16,6 @@ import (
 	"github.com/kjanat/articulate-parser/internal/services"
 )

-// Font sizes for DOCX document headings (in half-points, so "32" = 16pt).
-const (
-	docxTitleSize  = "32" // Course title (16pt)
-	docxLessonSize = "28" // Lesson heading (14pt)
-	docxItemSize   = "24" // Item heading (12pt)
-)
-
 // DocxExporter implements the Exporter interface for DOCX format.
 // It converts Articulate Rise course data into a Microsoft Word document
 // using the go-docx package.
@ -60,7 +53,7 @@ func (e *DocxExporter) Export(course *models.Course, outputPath string) error {

 	// Add title
 	titlePara := doc.AddParagraph()
-	titlePara.AddText(course.Course.Title).Size(docxTitleSize).Bold()
+	titlePara.AddText(course.Course.Title).Size("32").Bold()

 	// Add description if available
 	if course.Course.Description != "" {
@ -113,7 +106,7 @@ func (e *DocxExporter) Export(course *models.Course, outputPath string) error {
 func (e *DocxExporter) exportLesson(doc *docx.Docx, lesson *models.Lesson) {
 	// Add lesson title
 	lessonPara := doc.AddParagraph()
-	lessonPara.AddText(fmt.Sprintf("Lesson: %s", lesson.Title)).Size(docxLessonSize).Bold()
+	lessonPara.AddText(fmt.Sprintf("Lesson: %s", lesson.Title)).Size("28").Bold()

 	// Add lesson description if available
 	if lesson.Description != "" {
@ -139,7 +132,7 @@ func (e *DocxExporter) exportItem(doc *docx.Docx, item *models.Item) {
 	if item.Type != "" {
 		itemPara := doc.AddParagraph()
 		caser := cases.Title(language.English)
-		itemPara.AddText(caser.String(item.Type)).Size(docxItemSize).Bold()
+		itemPara.AddText(caser.String(item.Type)).Size("24").Bold()
 	}

 	// Add sub-items
--- a/internal/exporters/html.go
+++ b/internal/exporters/html.go
@ -69,16 +69,7 @@ func (e *HTMLExporter) Export(course *models.Course, outputPath string) error {
 	if err != nil {
 		return fmt.Errorf("failed to create file: %w", err)
 	}
-	defer func() {
-		// Close errors are logged but not fatal since the content has already been written.
-		// The file must be closed to flush buffers, but a close error doesn't invalidate
-		// the data already written to disk.
-		if closeErr := f.Close(); closeErr != nil {
-			// Note: In production, this should log via a logger passed to the exporter.
-			// For now, we silently ignore close errors as they're non-fatal.
-			_ = closeErr
-		}
-	}()
+	defer f.Close()

 	return e.WriteHTML(f, course)
 }
--- a/internal/exporters/html_styles.css
+++ b/internal/exporters/html_styles.css
@ -1,7 +1,5 @@
 body {
-  font-family:
-    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu,
-    Cantarell, sans-serif;
+    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    max-width: 800px;
--- a/internal/exporters/markdown.go
+++ b/internal/exporters/markdown.go
@ -96,10 +96,7 @@ func (e *MarkdownExporter) SupportedFormat() string {
 func (e *MarkdownExporter) processItemToMarkdown(buf *bytes.Buffer, item models.Item, level int) {
 	headingPrefix := strings.Repeat("#", level)

-	// Normalize item type to lowercase for consistent matching
-	itemType := strings.ToLower(item.Type)
-
-	switch itemType {
+	switch item.Type {
 	case "text":
 		e.processTextItem(buf, item, headingPrefix)
 	case "list":
@ -108,7 +105,7 @@ func (e *MarkdownExporter) processItemToMarkdown(buf *bytes.Buffer, item models.
 		e.processMultimediaItem(buf, item, headingPrefix)
 	case "image":
 		e.processImageItem(buf, item, headingPrefix)
-	case "knowledgecheck":
+	case "knowledgeCheck":
 		e.processKnowledgeCheckItem(buf, item, headingPrefix)
 	case "interactive":
 		e.processInteractiveItem(buf, item, headingPrefix)
--- a/internal/exporters/output.md
+++ b/internal/exporters/output.md
@ -9,4 +9,3 @@ Course description
 - **Navigation Mode**:

 ---
-
--- a/internal/services/parser.go
+++ b/internal/services/parser.go
@ -15,9 +15,6 @@ import (
 	"github.com/kjanat/articulate-parser/internal/models"
 )

-// shareIDRegex is compiled once at package init for extracting share IDs from URIs.
-var shareIDRegex = regexp.MustCompile(`/share/([a-zA-Z0-9_-]+)`)
-
 // ArticulateParser implements the CourseParser interface specifically for Articulate Rise courses.
 // It can fetch courses from the Articulate Rise API or load them from local JSON files.
 type ArticulateParser struct {
@ -81,15 +78,15 @@ func (p *ArticulateParser) FetchCourse(ctx context.Context, uri string) (*models
 		}
 	}()

+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("API returned status %d", resp.StatusCode)
+	}
+
 	body, err := io.ReadAll(resp.Body)
 	if err != nil {
 		return nil, fmt.Errorf("failed to read response body: %w", err)
 	}

-	if resp.StatusCode != http.StatusOK {
-		return nil, fmt.Errorf("API returned status %d: %s", resp.StatusCode, string(body))
-	}
-
 	var course models.Course
 	if err := json.Unmarshal(body, &course); err != nil {
 		return nil, fmt.Errorf("failed to unmarshal JSON: %w", err)
@ -136,7 +133,8 @@ func (p *ArticulateParser) extractShareID(uri string) (string, error) {
 		return "", fmt.Errorf("invalid domain for Articulate Rise URI: %s", parsedURL.Host)
 	}

-	matches := shareIDRegex.FindStringSubmatch(uri)
+	re := regexp.MustCompile(`/share/([a-zA-Z0-9_-]+)`)
+	matches := re.FindStringSubmatch(uri)
 	if len(matches) < 2 {
 		return "", fmt.Errorf("could not extract share ID from URI: %s", uri)
 	}
--- a/main.go
+++ b/main.go
@ -92,7 +92,7 @@ func run(args []string) int {
 // Returns:
 //   - true if the string appears to be a URI, false otherwise
 func isURI(str string) bool {
-	return strings.HasPrefix(str, "http://") || strings.HasPrefix(str, "https://")
+	return len(str) > 7 && (str[:7] == "http://" || str[:8] == "https://")
 }

 // printUsage prints the command-line usage information.