Changelog

Beta Testing Rollout

• •LLM token/cost tracking — auto-extracts usage from node outputs, shows cost per node and total
• •Redesigned sidebar into Observe / Analyze sections
• •Replay from subdirectories — runs recorded from child folders are now found and replayable
• •Changelog page with full version timeline
• •Report the Dev page for bug reports and feature requests
• •Restored and expanded test suite

Replay wired to UI

• •Replay from UI — hover any step, click "replay from here", no CLI needed
• •App factory input persists to .argus/config.json automatically
• •Auto-compare after replay — navigates to diff view showing original vs replay
• •Eval metrics panel in compare page (failure count, severity, success rate)
• •--app flag on argus ui for startup config

Auto-login & interrupt stitching

• •Auto-login in argus ui — reads CLI credentials, no second OAuth flow
• •Interrupted runs + resume continuations stitched into a single merged view
• •Resume runs hidden from top-level list to avoid duplicates

Cloud storage

• •Google login and Supabase cloud storage
• •Background sync of runs to cloud

Web Dashboard

• •argus ui — web dashboard served by a pure-Python HTTP server, no Node.js required
• •Runs list with status, duration, pass rate stats
• •Per-run detail view with step-by-step inspection
• •Side-by-side run comparison at /compare
• •Zero extra dependencies — just Python

Silent failure enhancements

• •Strict mode for inspector
• •Nested error scan in tool outputs
• •Generic list type checking

Parallel Execution

• •Parallel nodes grouped in a parallel panel in argus show
• •Graph topology diagram above the step list
• •Silent failure detection is parallel-aware — only blames nodes for fields they wrote
• •Root cause chain excludes innocent parallel siblings

Run Differentiator

• •argus diff — compare any two runs node-by-node
• •Status changes with FIXED / REGRESSION labels
• •Inspection diff, validator result flips, output field deltas
• •Frozen node and duration change tracking

Tool Call Failure Detection

• •Detects error_response, rate_limit (HTTP 429), and empty_result from tool calls
• •Tool failures show inline under the node that swallowed them

Deterministic Replay

• •Replay plays back exact outputs from the original run — no live LLM calls
• •Reproducible replays with zero configuration

MVP

• •Core monitoring: ArgusWatcher for LangGraph, ArgusSession for any framework
• •Silent failure detection: missing fields, type mismatches, empty outputs
• •Semantic signature registry for placeholder/degraded LLM outputs
• •Root cause analysis chain
• •CLI: argus show, argus replay
• •Local storage in .argus/runs/