Argus 1.0.0

Argus v1.0.0

50 CLI commands. Production-ready JVM diagnostics.

Killer Features

Command	Description
argus doctor <pid>	One-click JVM health diagnosis with 8-rule engine + tuning recommendations
argus gclog <file>	GC log analysis with pause distribution + tuning (GCEasy alternative)
argus flame <pid>	One-shot flame graph → HTML → browser open
argus watch <pid>	Real-time terminal dashboard (htop for JVM)
argus tui [pid]	k9s-style interactive terminal UI — browse all 50 commands
argus ci <pid>	CI/CD health gate with GitHub annotations + exit codes
argus suggest <pid>	JVM flag optimization by workload (web/batch/streaming)
argus compare <pid1> <pid2>	Side-by-side JVM comparison with delta %
argus slowlog <pid>	Real-time slow method detection via JFR streaming

Architecture

• DiagnosticCommand SPI — ServiceLoader-based pluggable command system
• CommandRegistry — auto-discovery, zero registration code
• RouteTable — declarative HTTP routing for dashboard
• JLine3 — proper terminal handling for TUI

Critical Fixes (since v0.9.0)

• doctor/suggest/watch now properly diagnose target PID via jcmd (was diagnosing self)
• jcmd errors propagated to user with helpful messages (was silently swallowed)
• GC log parser: streaming (handles multi-GB), ZGC + Shenandoah support
• suggest: classpath-based framework detection (was 3 if-statements)
• watch: shutdown hook for terminal restore, Windows safety
• TUI: arrow key handling fixed
• VERSION read from JAR manifest (never drifts)

Infrastructure

• Docker: docker run --pid=host ghcr.io/rlaope/argus doctor
• GitHub Action: CI/CD JVM health checks with --format=github-annotations
• 125 unit tests passing

Breaking Changes

• CLI requires Java 21+ to run (diagnoses any JVM 11+)
• Version numbering: 0.8.0 → 1.0.0 (no intermediate releases)

What's Changed

• refactor: introduce DiagnosticCommand SPI for pluggable command architecture by @rlaope in #55
• refactor: migrate legacy commands to SPI + RouteTable by @rlaope in #56
• refactor: bridge CLI commands with core CommandGroup SPI by @rlaope in #57
• feat: argus doctor — one-click JVM health diagnosis with recommendations by @rlaope in #65
• feat: argus gclog — GC log analysis with tuning recommendations by @rlaope in #66
• feat: argus flame — one-shot flame graph with browser open by @rlaope in #67
• feat: argus watch — real-time terminal dashboard (htop for JVM) by @rlaope in #68
• feat: argus suggest — JVM flag optimization by @rlaope in #69
• fix: code review fixes (deprecated API, resource leak) by @rlaope in #70
• fix: code review round 2 (CRITICAL sparkline bug, HIGH injection fix) by @rlaope in #71
• docs: sync to 47 commands + killer features in README by @rlaope in #72
• docs: detailed documentation for doctor, gclog, flame, watch, suggest by @rlaope in #73
• feat: HTML export + on-demand profiling API by @rlaope in #74
• fix(critical): doctor/suggest/watch now diagnose target PID by @rlaope in #89
• fix(high): GcLogParser streaming + ZGC/Shenandoah support by @rlaope in #90
• fix(high): suggest workload detection — classpath-based framework detection by @rlaope in #91
• fix(high): watch terminal — shutdown hook + Windows safety by @rlaope in #93
• feat: argus tui — k9s-style interactive terminal UI by @rlaope in #94
• feat: argus ci — CI/CD health gate with exit codes by @rlaope in #95
• feat: argus compare — side-by-side JVM comparison by @rlaope in #96
• feat: argus slowlog — real-time slow method detection by @rlaope in #97
• feat: Dockerfile + GitHub Actions for Docker image by @rlaope in #98
• feat: GitHub Action for CI/CD JVM health checks by @rlaope in #99
• docs: final overhaul — 50 commands, Docker, CI/CD by @rlaope in #100
• test+fix: 30+ tests for core features + hardened doctor rules by @rlaope in #101
• fix: critical UX fixes for v1.0.0 by @rlaope in #102

Full Changelog: v0.9.0...v1.0.0