yoloyolo/.planning/milestones/v1.2-phases/11-synthesis-and-config-layer/11-02-SUMMARY.md

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phase: 11 plan: 02 subsystem: config tags: [print-config, group-headers, toml-groups, user-facing-output] dependency_graph: requires: [synth/config.go FreqConfig.Group field from Phase 11 Plan 01, classify/types.go AllClasses() with 35 entries] provides: [Group-ordered PrintConfig output, [groups] TOML support, applyGroupOverrides function] affects: [config/config.go, config/config_test.go] tech_stack: added: [] patterns: [rawConfig Groups field for TOML [groups] table, groupOrder canonical slice for section ordering] key_files: created: [] modified: - config/config.go - config/config_test.go decisions:

• "Non-canonical group names (user-invented via [groups]) emitted after canonical groups in alphabetical order"
• "builtinByGroup built from result.FreqCfgs[cls].Group (effective group after reassignment) not from synth defaults" metrics: duration: ~5min completed: "2026-03-27" tasks: 2 files_modified: 2

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Phase 11 Plan 02: Group-Ordered PrintConfig and [groups] TOML Support Summary

One-liner: Refactored PrintConfig to emit group section headers (Infrastructure, Web, Mail, Remote Access, File Transfer, Database, Discovery, VoIP, Unknown) with classes sorted by ascending BaseHz, and added [groups] TOML table support for user-defined protocol-to-group reassignment.

What Was Built

Task 1: Add [groups] TOML support and refactor PrintConfig for group headers

config/config.go — Three changes:

1. Groups field on rawConfig:

type rawConfig struct {
    Sounds map[string]SoundOverride `toml:"sounds"`
    Rules  []RawRule                `toml:"rules"`
    Groups map[string]string        `toml:"groups"`
}

2. applyGroupOverrides function — overlays [groups] reassignments onto FreqConfig.Group in-place. Unknown class names emit a stderr warning and are skipped (not an error). Unknown group names are silently accepted (users can invent custom groups). Called in Load() after merge().

3. PrintConfig refactored — replaced flat AllClasses() iteration with:

• groupOrder canonical slice: ["Infrastructure", "Web", "Mail", "Remote Access", "File Transfer", "Database", "Discovery", "VoIP", "Unknown"]
• Built-in classes grouped by their effective Group field, sorted ascending by BaseHz within each group
• Section headers emitted as # GroupName\n\n
• Non-canonical group names (user-invented) emitted after canonical groups in alphabetical order
• User-defined classes (not in AllClasses()) emitted under # User-defined section

Task 2: Add tests for group headers, group reassignment, and unknown class warning

config/config_test.go — 4 new test functions:

Test	What It Covers
TestPrintConfigGroupHeaders	GRP-02: all 8 populated group headers present in canonical order
TestLoadGroupOverride	GRP-03: [groups] reassigns IMAP from Mail to Web, Hz/waveform unchanged
TestLoadGroupUnknownClass	D-09: unknown class in [groups] produces no error, map size unchanged
TestPrintConfigGroupReassignment	GRP-03: PrintConfig places reassigned IMAP between Web and Mail headers

Verification Results

go test ./...
ok  github.com/netsynth/netsynth/aggregate  (cached)
ok  github.com/netsynth/netsynth/capture    (cached)
ok  github.com/netsynth/netsynth/classify
ok  github.com/netsynth/netsynth/cmd/netsynth
ok  github.com/netsynth/netsynth/config
ok  github.com/netsynth/netsynth/encode
ok  github.com/netsynth/netsynth/synth

All 7 packages pass.

Commits

Task	Commit	Description
1	374282e	feat(11-02): add [groups] TOML support and group-ordered PrintConfig
2	7bf3ea1	test(11-02): add group header and reassignment tests (GRP-02, GRP-03)

Deviations from Plan

None - plan executed exactly as written.

Known Stubs

None — PrintConfig group output is fully wired to FreqConfig.Group field populated in Phase 11 Plan 01. No placeholder data.

Self-Check: PASSED