01
WINDOW / LIVEContext
See how much of the model window is occupied, including real compaction resets.
00 Local observability / v0.7.0
Aether. See the
invisible.
Local, live observability for Claude Code and Codex. Follow context, cost, complexity, code changes, tools, compactions, and sub-agents—without sending your data anywhere.
01 No SDK02 No API keys03 No cloud dashboard
adaptive render
local signal / 00–∞
AETHER / SESSION 7F–A239 SEC · LOOP · SILENT · LOCAL
01 Product tour
One session.
Every signal aligned.
Move once and context, duration, cost, tokens, complexity, and code impact stay synchronized across the same turns.
02 Signal map
Telemetry that
answers questions.
Your coding agent already leaves a trail. Aether turns that native trail into an operational picture—without instrumentation.
02
TIME / ΔDuration
Find slow turns and compare them with the session median without leaving the terminal.
03
USD / ESTEstimated cost
Read transparent API-equivalent token estimates with partial sessions clearly labelled.
04
I/O / CACHETokens
Separate input, output, cached input, and reasoning usage emitted by each provider.
05
EFFORT / 100Complexity
A deterministic 0–100% view of reasoning effort across every turn.
06
+ / −Code diff
Track successful additions, removals, created files, and deleted files.
07
PARENT / CHILDAgent topology
Keep sub-agents and hooks attached to the parent turn that created them.
08
EVENT / STREAMActions
Inspect tools, patches, searches, compactions, outcomes, and model metadata.
GUIDES Field notes
Start with the question
you need answered.
Short, provider-specific guides to observing coding-agent work without adding instrumentation.
01 / Claude Code observability
See what Claude Code
Monitor Claude Code sessions locally. See context usage, estimated cost, token flow, tool calls, compactions, code changes, and nested agents in one terminal TUI.
Read field guide →02 / OpenAI Codex observabilityTrace every Codex turn.
Observe OpenAI Codex sessions locally. Track context, estimated cost, tokens, duration, tools, compactions, code changes, and sub-agents from one terminal TUI.
Read field guide →03 / AI agent context monitoringContext is a budget.
Understand what consumes an AI coding agent's context window. Aether visualizes context growth, compactions, tokens, tools, prompts, agents, and provider runtime locally.
Read field guide →03 Under the hood
Native trails in.
Clarity out.
CLAUDE
~/.claude/projects/*.jsonlCODEX
~/.codex/sessions/*.jsonl→
provider parsersnormalize turns, usage, actions, relationships
→
live TUIsynchronized and local
TRACE Agents, not extra chats
See who did what.
Each agent trace keeps its request, response, model, duration, token use, tools, and code impact. Hooks and sub-agents stay in context instead of polluting the session list.
- Parent and nested agent relationships
- Provider-native titles and project identity
- Successful edits, searches, tools, and outcomes
04 Privacy by construction
Your sessions stay
on your machine.
01Session data is read locally.
02No provider API key is required.
03No prompt, response, or metric is uploaded.
04No additional LLM is called for telemetry.
05Provider transcripts are never modified.
Everything remains on your machine.
05 Install
Trust. Install.
Then watch.
Homebrew 6 formula trust · automatic provider discovery · macOS and Linux
AETHER SETUPLOCAL SHELL
$
brew trust --formula connectchiragg/tap/aether$
brew install connectchiragg/tap/aether$
aether watch auto-discovery live06 Open source
Understand what your
agents actually did.
Issues and pull requests are welcome—especially new providers, telemetry fields, pricing updates, and parser fixtures.
Star Aether on GitHub ↗