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  █████║  ━━━━━━━━━━━━━━━  ║█████
  █████║  ▌   AETHER   ▐  ║█████
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AETHER — Talk to your robot in plain English

Install it on a Raspberry Pi robot, say what you want, and it works out which motors and sensors to use.

Quickstart

pipx install aether-robotics
export GEMINI_API_KEY=...        # free key: aistudio.google.com/apikey
aether --mode agent

Then type what you want:

objective> drive forward until you get close to an obstacle

On Raspberry Pi OS Bookworm and later, plain pip install is refused (PEP 668) — that is what pipx is for. If you would rather not use pipx: pip install --break-system-packages aether-robotics. Run aether doctor any time something looks wrong; it checks the install, the PATH, and whether your LLM provider actually answers.

What hardware do I need

A Raspberry Pi and a robot chassis. Approximate 2026 street prices — check current listings, they move:

A Pi Zero 2 W plus a budget chassis lands near $50; a PiCar-X with a Pi 4 is closer to $150. AETHER ships tested adapters for the kits above and will attempt to generate one for hardware it does not recognise.

No LLM bill: Gemini, Groq and OpenRouter free tiers comfortably cover a robot's planning rate, and Ollama runs fully offline.

What it actually does

At startup AETHER scans I2C, GPIO and serial, works out what is physically attached, and either loads a tested adapter, generates one, or walks you through a calibration wizard. It builds a map of every motor and servo by pin, then an LLM turns plain-English objectives into tool calls against that map. Motion runs behind a layered safety chain — every path that starts a motor is required to stop it — and a fault-detection network watches the sensor stream while it runs.

Security posture

Shell and filesystem access are off by default. AETHER plans with an LLM and then executes what it planned, so the tools that could do real damage are not registered unless you ask for them:

aether --mode agent                    # safe subset: sensors, motion, vision
aether --mode agent --allow-fs         # + file read/write, jailed to ~/.aether/workspace
aether --mode agent --allow-shell      # + allowlisted commands, no shell interpretation

Requests to loopback, LAN and cloud-metadata addresses are blocked (--allow-private-network to permit them), --mode server binds 127.0.0.1 and refuses to start without AETHER_SERVER_KEY, and generated adapter code is validated against a whitelist, dry-run in a resource-limited subprocess, and re-validated every time it loads.

Full details, threat model and residual risks: SECURITY.md. Report vulnerabilities to chahelpaatur@aether-robotics.com.

Honest limitations

Read this before you decide it is broken:

• Not a ROS replacement. Single process, single machine. No distributed node graph, no real-time guarantees. It is a layer for one small robot, not a fleet or an industrial arm.
• The mapper is not SLAM. Frame-difference optical flow on a 100×100 grid, no loop closure, unbounded drift. Useful as short-horizon obstacle memory; do not navigate a building with it.
• Monocular distance is a rough fit, calibrated against one reference object size. Good enough for "stop before the wall", not for measurement.
• Parallel execution helps less than it sounds. The safety rules serialise motion — which dominates wall-clock — so most of the gain is on sensor-plus-compute groups.
• Generated adapters need a physical test. Static analysis and a sandboxed dry run cannot tell a correct pin mapping from a wrong one; only watching the robot move can. AETHER asks before doing that.
• Flight is deliberately blocked. AETHER speaks MAVLink as a companion computer and reads telemetry, but will not issue flight commands from an LLM plan.
• LLM planners produce wrong plans sometimes. There is a repair-and-fallback path, and failures are reported as DEGRADED rather than quietly succeeding — but supervise a robot that can move.

Full engineering detail, including the algorithms and where they came from: docs/TECHNICAL_DESIGN.md.

Docs → aether-robotics.com

What's New

v5.2.4 — The 22-second embedding load, and the warm-up that never ran

Loading MiniLM takes ~22 s on a Pi 4. Everything else was noise.

• The async warm-up had been dead since v5.1.0. Its only call chain was warm_up_async ← auto_migrate_on_boot ← print_startup, and v5.1.0 moved print_startup() inside if _verbose: — so no normal boot warmed the model. It is now started explicitly from boot, nice'd, and instrumented ([EMBED] warm-up loaded in 21840ms).
• available() was loading the model. It was get_model() is not None, so asking "are embeddings available?" performed the full load — on every plan_cache.enabled(), and in the guard in front of the warm-up itself. One level down, is_installed() did import sentence_transformers, which pulls torch. Both are now genuinely cheap (find_spec, 30 ms).
• Exact-match cache tier, no model required. Repeating an objective verbatim — the common case — is now a normalized string comparison. Embedding similarity remains only as the fallback for genuinely reworded objectives.
• AETHER_RAG_MODE=auto|always|off (default auto): while the model is cold, retrieval is skipped and planning proceeds normally. An optimisation that costs 22 s to save 1 s must yield, not block.
• get_model() is now lock-serialised. Without it the main thread never waited for the warm-up thread — it started a second concurrent 22 s load.
• --objective one-shot was broken: it used the autonomous path, which has no plan-cache lookup, and discarded the result. It now checks the cache and prints the outcome.
• Never stall silently: [MEM] Loading embedding model (first use, ~20s on a Pi)...

A correction: the v5.2.2 and v5.2.3 latency claims were measured on a macOS dev box and extrapolated. The import-time work in v5.2.3 was real but was never the 50 s. This one was found by measuring on the hardware that had the problem.

v5.2.8 — The half-drawn box after every answer

Reported: every completed turn left a box with a top border and an input line but no bottom — "that sick half-finished" frame repeating down the scrollback.

Cause: prompt_toolkit's bottom_toolbar is transient. It is part of the live editing region and is erased when the prompt is submitted, so the closing border and status line — which v5.2.7 put in the toolbar — vanished, leaving an unclosed box permanently in the scrollback.

The closing border is now printed by AETHER after the prompt returns (in a finally, so an interrupt closes it too), giving a complete frame in history:

╭──────────────────────────────────────────────────────────╮
│ › whats the distance in front of you
╰──────────────────────────────────────────────────────────╯

  [CACHE] Reusing plan (similarity 1.00) — skipped the planning call
  [OK] get_distance → 7.8 cm (4ms)

The status line is deliberately not persisted — it is live chrome, and a stale copy above every answer would be noise.

v5.2.7 — The input bar, rebuilt on prompt_toolkit

The bar had a structural flaw that no amount of padding could fix: with print() + input(), the closing border and status line are printed only after input() returns, so while you were typing they did not exist. The reported symptom — "I can't even scroll down to see most of it" — was literally true: there was nothing below to scroll to.

A box whose bottom edge sits below the input line is impossible that way. The bar now uses prompt_toolkit, whose bottom_toolbar renders below the input and stays visible during editing:

╭────────────────────────────────────────────────────────────╮
│ › drive forward until you get close to a wall
╰────────────────────────────────────────────────────────────╯

  ▸ rag on · cache 14 plans · anthropic · picarx

• The status line is now live while you type — rag loading… → rag on updates in place, which the print-based bar could never do.
• Status text is AETHER orange (#FF7A00) with a single ▸ marker.
• History, Ctrl-R search and emacs bindings come from prompt_toolkit, so the v5.1.1 "don't lose readline" requirement is satisfied by the library rather than worked around. History still persists to ~/.aether/objective_history.
• Falls back to the previous print-based bar if prompt_toolkit is unavailable or the terminal misbehaves — one strike, then fallback, so a broken renderer can never make AETHER unusable. AETHER_NO_PROMPT_TOOLKIT=1 forces the fallback.
• Non-TTY is unchanged: the exact objective> prompt, no drawing (the byte-identical piped-output contract).

prompt_toolkit is a new core dependency — pure Python, ~3 MB, fine on a Pi.

v5.2.6 — Input bar has room to breathe

The bar was a thin three-row strip pinned to the bottom of the terminal, with the status line squeezed against the edge or scrolled off entirely. Now:

╭────────────────────────────────────────────────────────────╮
│                                                            │
│ › drive forward until you get close to a wall
╰────────────────────────────────────────────────────────────╯

  ▸▸ rag on · cache 14 plans · anthropic · picarx

• Padding inside the box (BOX_PAD_TOP), so the input has vertical presence instead of being a slot.
• A gap between the border and the status line, so the line reads as its own band rather than being welded to the box.
• Clear space below everything — the reported symptom was that there was none.
• The status line is accented, not dim grey. It carries the one state worth watching (whether the embedding model is still loading); dim made it disappear into the log above it. Separators stay dim so the fields read first.

The whole assembly is 8 rows, so it still fits an 80×24 terminal. Non-TTY and --no-color are unchanged.

v5.2.5 — Status line under the input bar

Session state now sits below the prompt as dim chrome, so the important one — whether the embedding model is still loading — is visible rather than being a silent 20-second wait:

╭───────────────────────────────────────────────────────────╮
│ › what's the distance in front of you
╰───────────────────────────────────────────────────────────╯
  ▸ rag loading… · cache 14 plans · anthropic · picarx

Slash commands change session state and reprint the line immediately:

Under 80 columns fields drop right-to-left rather than wrapping — but an active warning is ordered second, not last, so it survives truncation. A status line that silently drops the one field reporting a problem would be the exact quiet-failure class the rest of this project has been removing. Non-TTY omits the line entirely (the byte-identical piped-output contract), --no-color keeps the text and drops the dim styling, and readline history is untouched.

One honest limitation: the line refreshes on each prompt cycle and on slash commands, not continuously while you are typing. Live in-place updates need ANSI cursor movement above the input row, which is what broke the box in v5.2.1 — so rag loading… → rag on appears at the next prompt rather than mid-keystroke.

v5.2.2 — Boot is the latency now, so boot got measured

With planning cached at 0 ms and get_distance at 6 ms, the remaining ~5 s was boot — running before every objective, and entirely unmeasured. Instrumented first:

[BOOT] hardware_probe 1485ms · software_probe 942ms · … · total 2449ms prints under AETHER_VERBOSE=1, and boot_latency {phase, ms} is emitted always — the point is the distribution across real installs, not just machines being debugged.

• Cached hardware profile. If the fingerprint is unchanged, the entire probe sweep is skipped: 3016 ms → 1 ms. The fingerprint deliberately includes the I2C address scan (~340 ms on a Pi), not just device-node presence — swapping a PiCar-X HAT for a GoPiGo3 leaves /dev/i2c-1 identical, and a fast boot onto the wrong adapter is not a win. Prints [DISCOVERY] Using cached hardware profile (fingerprint match); invalidated by a hardware change or aether doctor.
• One-shot mode: aether --mode agent --objective "what's the distance in front of you" runs one objective and exits, skipping readline and the feedback prompt.
• Input bar. v5.2.1 printed a leading newline unconditionally, which put a blank row inside the panel after Enter — the reported symptom. It's now only printed when the cursor is genuinely mid-line (Ctrl-C, or teardown closing the box from a signal handler), plus a reserved row above and a blank line after the closing border so the panel renders fully on an 80×24.
• Subcommands look like the rest of the program. doctor renders section panels with a coloured 13 passing · 4 warnings · 0 failures summary; bare aether kits lists the kits instead of dumping argparse usage (--help still does). Four "KEY not set" provider warnings collapse into one line — they were never four problems. Non-TTY output stays byte-identical.

v5.2.1 — Plan cache tuning, measured against the pairs that must not match

A one-word difference ("infront" → "in front") missed the cache and cost a fresh ~2.7 s planning call. Objectives are now normalised before embedding — lowercased, punctuation stripped, whitespace collapsed — so "What's the distance?" and "whats the distance" embed identically (measured 0.934 → 1.000).

The threshold is now two thresholds, and the split came from measurement rather than judgement. Lowering the cutoff to 0.88 across the board would have been unsafe. Measured with all-MiniLM-L6-v2 on pairs that must never match:

Five sit above 0.88. And the discriminator isn't "contains a number" — open vs close the gripper has no digit and no direction word and still scores 0.907. So the tier is chosen by what the cached plan does, not by how the objective was worded: a read-only sensor plan uses 0.88 (worst case, you re-read a sensor), anything that actuates keeps 0.95 (worst case, the robot moves differently than asked). AETHER_CACHE_THRESHOLD pins both.

• Near-misses are logged — [CACHE] Near-miss (similarity 0.91, threshold 0.88) — planning — and plan_cache_miss now carries the similarity, so the value is tunable from real distributions instead of another round of guessing.
• Dedupe on insert. Four phrasings of one question created four rows; a near-identical entry with an identical tool chain and params now refreshes its timestamp instead. Similarity alone never merges entries — "2 seconds" and "20 seconds" can be 0.89 similar and must stay separate.
• Input bar teardown. Shutdown messages printed inside the box, because AETHER's SIGINT handler emits the whole teardown log from within the signal handler before SystemExit ever reaches the prompt's cleanup. The exit path now closes the panel first.

v5.2.0 — Latency reduction, and a security audit that changed the defaults

Faster. A repeat objective no longer calls the LLM at all. On real hardware get_distance executes in 4-6 ms while planning takes ~1 s, so for sensor-only work the model was ~99% of wall clock — and users repeat themselves constantly.

Note on the [rag] extra: the embedding model costs ~22 s to load once per process on a Pi 4. AETHER warms it in the background and, by default (AETHER_RAG_MODE=auto), skips retrieval entirely while it is still cold — so a cold first objective plans normally rather than waiting. Exact repeats of a previous objective are served from cache without touching the model at all.

• Semantic plan cache. A successful plan is stored against the embedding of the objective that produced it; a semantically equivalent objective replays it. ~6 ms instead of ~1000 ms — roughly 158× on a repeat. Every entry is keyed on the robot's genome hash and a mismatch is a hard miss: a cached plan is instructions for moving a physical machine and must never replay against different hardware. Parameters are replayed verbatim, never interpolated — 0.95 cosine still admits "2 seconds" vs "20 seconds". Needs the [rag] extra; degrades to normal planning without it.
• Anthropic prompt caching on the static system prefix (~71 tool descriptions), plus latency instrumentation on every planning call: [PLAN] via anthropic in 847ms (cached prefix: 4200 tok).
• Provider detection persisted for 24 h against a credential-presence fingerprint, so boot stays off the detection path.

Safer — and the defaults changed. A full security audit before public launch found working exploits, and the fix was a capability boundary rather than a better blocklist:

• Shell and filesystem tools are no longer registered by default. --allow-shell / --allow-fs. The old shell filter blocked ; | $(in front ofshell=True, which meant &&, newlines, >, &and${VAR}all passed — andecho $ANTHROPIC_API_KEYreturned the key. Now:shell=False` with an argv list, an allowlist of binaries, and a credential-scrubbed subprocess environment.
• File tools are jailed to ~/.aether/workspace. The previous code called realpath() and used the result, which normalises ../../../../etc/passwd into /etc/passwd and opens it. It now resolves and then compares against the root.
• SSRF blocked — call_api and web_search validate scheme and resolved address, and re-check the whole redirect chain, so a 302 into 169.254.169.254 cannot reach cloud metadata.
• Server mode fails closed, binding 127.0.0.1 and refusing to start without AETHER_SERVER_KEY. It previously bound 0.0.0.0 and accepted every request when no key was set.
• Generated-code validation inverted to a whitelist. getattr(__builtins__, "__import__")("os"), globals()[...] and string-built names all walked past the old denylist. The dry-run moved from a thread in AETHER's own interpreter to a subprocess with RLIMIT_CPU/AS/FSIZE, and saved adapters are re-validated on every load.
• Gemini, Groq and HuggingFace keys are now redacted — v5.0.0 added those providers without touching security.py. URL query strings are stripped everywhere, since Gemini authenticates with ?key=.
• No more unattended sudo. AETHER prints the command instead of running it.
• Dependency upper bounds on everything; ~/.aether/ is 700.

See SECURITY.md for the capability model and threat model.

v5.1.2 — Feedback routing, session counting, quieter boot

• Support goes to email, not a private repo. The GitHub repository is private, so every link to it — the issues page, the "file a PR" hints in aether kits, the PyPI sidebar, and the auto-updater's releases API — was a 404 for everyone who isn't the author. All of it now points at chahelpaatur@aether-robotics.com, from one constant. The updater checks PyPI instead of the private releases API (it had been silently finding nothing on every run), and a pip install is told the actual pip install -U command rather than "download the latest release from GitHub".
• The feedback prompt moved back to the exit path and no longer greets you at boot. v5.1.1 over-corrected: it removed the exit-path call entirely instead of keeping it as primary, so the question arrived before you'd run anything. It now fires on the way out for both quit and Ctrl-C — SystemExit is caught at the top of the REPL loop, because AETHER's SIGINT handler calls sys.exit() from inside the handler, and by then motors are already stopped. Prompting from within the signal handler would re-enter readline, which isn't reentrant. The in-session fallback survives only for sessions that died hard (SIGKILL, power loss), and fires after a successful objective.
• Session counting starts when the feature shipped. An upgrading install counted its entire history and announced "5 objectives across 37 sessions" on the first v5.1.1 boot. A baseline is pinned on first run and both numbers — sessions and objectives — are now measured over the same window.
• Input bar: bright white border, and a blank line beneath it so the bottom edge is visible instead of flush against the terminal. Readline history is unchanged.
• The "Missing libraries detected" block shows once, not on every boot. It had stopped blocking in v5.1.0 but kept printing.
• Boot is quiet by default. The ~20 lines of [ADAPTER]/[TOOLS]/[NAV]/[GENOME]/[SKILLS] progress above the summary panel are internal detail and are now verbose-only. Warnings and faults still print — silencing by default and opting problems back in is how a real failure gets hidden. Normal boot is: banner → summary panel → recent memory → input bar. AETHER_VERBOSE=1 or --verbose restores everything.

v5.1.1 — Boot output, an input bar, and four bugs from hardware testing

• The feedback prompt actually fires now. It shipped in v5.1.0 and never appeared once. AETHER installs a SIGINT handler that calls sys.exit() from inside the handler, so Ctrl-C unwinds as SystemExit rather than KeyboardInterrupt, sets a non-zero exit code, and skipped the _exit_code == 0 gate the prompt sat behind. Since Ctrl-C is how most people leave a REPL, feedback would have been collected from almost nobody. It now runs at the start of a session — after boot, before the first objective — which is independent of how the previous session ended and never competes with the motor-stop teardown. AETHER_FEEDBACK_DEBUG=1 forces it, so this is testable without three real sessions.

• OLED false positives, third occurrence, different cause. v4.5.2 fixed detection (probe with a real write) and the setmode error. This one is a different RPi.GPIO failure: GPIO.cleanup() elsewhere releases luma's DC/RST channels, and the next write fails with The GPIO channel has not been set up as an OUTPUT — a string the v4.5.2 guard did not match, so it went straight through as a hard error. Re-running setmode cannot fix a released channel; the device is now rebuilt once so luma reconfigures those pins. Separately, an OLED that fails its probe is no longer registered at all on a Pi, so the planner can't reach for draw_face when you say hello.

• Detected: generic hardware on a correctly-identified robot. Only the multi-adapter branch called set_primary_adapter, so the common single-robot case left it unset. Now reads Detected: SunFounder PiCar-X — 71 tools across 1 adapter, with vendor-correct product names for every shipped adapter.

• The install prompt stopped returning. v5.1.0 showed the one-liner on the first run and then fell back to the blocking Install missing libraries? [Y/n/skip]: on runs 2 and 3. Boot never prompts now; aether kits is the way in.

• Boot is a summary, not an inventory. ~70 lines of hardware/software/network/environment collapse to one panel that reports only what is broken or notable:

  ╭─ AETHER v5.1.1 ─────────────────────────────────────╮
  │  SunFounder PiCar-X · 71 tools · Capability 79/100   │
  │  Provider: gemini (free tier)                        │
  │  Camera unavailable · OLED unavailable               │
  ╰──────────────────────────────────────────────────────╯
  

  The full dump is one capabilities command away, aether doctor is unchanged, and AETHER_VERBOSE=1 (or --verbose) restores everything.

• A bordered input bar — and arrow-key history that never existed. The prompt is now a box. Verifying the "don't lose readline" requirement turned up that AETHER never imported readline at all, so up-arrow emitted a literal ^[[A and there was no history to lose; it's now enabled with history persisted to ~/.aether/objective_history across sessions. The box is drawn with no ANSI cursor movement (an earlier draft used \x1b[2A and broke as soon as typed input wrapped), and off-TTY it is the exact objective> prompt with no drawing at all.

• Quieter execution blocks. [CORRECT] Skipped verification was internal detail printed on every clean step and is now verbose-only; known result shapes read as answers ({'distance_cm': 8.3} → 8.3 cm); a clean run collapses to ✓ Complete · 1 action · 0 faults. DEGRADED and FAILED keep the full block — compressing those is how a problem gets scrolled past.

v5.1.0 — Onboarding polish, and one question

A first boot printed ~25 lines of ALSA/JACK errors, a 71-line tool dump, and an install prompt about torch before the user had run anything. Nothing was broken; it read as though everything was.

• Third-party stderr noise is gone. ALSA/JACK spew from robot_hat's pyaudio import and OpenCV's V4L2 warnings are suppressed at the file-descriptor level during vendor imports only — contextlib.redirect_stderr cannot catch these, since they come from C libraries writing to fd 2 underneath the interpreter. Everything AETHER itself prints stays visible, including errors. AETHER_VERBOSE=1 restores the lot.
• pipx is now the documented install path for PEP 668 environments (Raspberry Pi OS Bookworm+), with --break-system-packages as the fallback. aether doctor detects an externally-managed Python and prints the command that will actually work.
• aether doctor catches the installed-but-not-on-PATH case — the state where import aether works, the aether command does not, and it looks like a broken install. It prints the exact export line for your shell.
• The boot screen is for a first-time user now. One Detected: <adapter> (N tools) line instead of the tool dump, plus a short quickstart with three objectives that robot can actually attempt (gated on the tools present, so a camera-only robot is never told to drive). The full listing moved to the tools command and --verbose; help lists the rest.
• The optional-accelerator prompt became a single line. torch/dronekit/tflite/ultralytics are no longer offered before you have run an objective and could judge whether you need them.
• The updater reports the real version. CURRENT_VERSION had been pinned at "3.0" for twelve releases; it now reads the package version, which is also the second line a new user sees.
• One feedback question, once per install. After the third session with at least one successful objective: four keys, no survey. If you declined telemetry you are never asked at all, non-interactive runs never prompt (and never burn the one-time opportunity), and free text is redacted before storage — and never transmitted, since only has_comment is on the telemetry allowlist.

v5.0.2 — A shut-down Gemini model, reported as available

Google retired gemini-2.0-flash on 2026-06-01. v5.0.0/v5.0.1 pinned that ID, so the free tier — the entire point of v5.0.0 — stopped working for every install at once, while aether doctor still printed a green check.

• Model IDs are no longer pinned in place. Every provider takes AETHER_<NAME>_MODEL, so you can move to a working model without waiting for a release:

  export AETHER_GEMINI_MODEL=gemini-3.5-flash   # also ANTHROPIC / GROQ / OPENROUTER / OLLAMA
  

• AETHER self-heals through a retirement. A 404 triggers a ListModels lookup, selects the best live Flash model, retries once and logs it: [gemini] gemini-2.0-flash retired — switched to gemini-3.5-flash. Remembered for 24 h so the next run does not repeat the wasted call.

• aether doctor probes instead of checking for a key, because key-presence is not availability. Three states, cached 15 minutes:

  ✓ gemini    verified (free tier, multimodal) — model: gemini-3.5-flash
  ⚠ gemini    GEMINI_API_KEY set but call failed: HTTP 404: ...no longer available
  ⚠ gemini    GEMINI_API_KEY not set (free key: aistudio.google.com/apikey)
  

  AETHER_DOCTOR_NO_PROBE=1 for offline use. Every configured provider failing is a FAIL, not a row of warnings.

• A provider outage now reports DEGRADED. Previously the 404 fell through to the keyword planner and the objective still reported SUCCESS with 0 faults.

• Opt-in live smoke test. Every provider test before this release mocked HTTP — which is exactly what hid the outage, since a dead model ID cannot fail a mocked test. AETHER_LIVE_PROVIDER_TESTS=1 pytest tests/test_live_providers.py makes one real call per configured provider and asserts the shipped default still answers.

The default is gemini-3.5-flash, deliberately not gemini-2.5-flash — that one already carries a 2026-10-16 shutdown date and would have reproduced this bug within two months.

v5.0.1 — Plans survive malformed JSON, and skills stop overstating success

• A trailing comma no longer throws away a correct plan. Models occasionally emit [{...},], which strict json.loads rejects — so a plan naming the right tool with the right parameters was discarded and the keyword fallback ran instead. Parsing is now tolerant: strict first, then json5 if installed, then a string-aware repair that tracks string literals and escapes, so commas and braces inside values are never touched. Repairs are logged (Repaired malformed JSON (trailing comma) — plan recovered) so the rate is measurable.
• Fallback keeps the parameters the model chose. Previously a parse failure meant drive_until_obstacle(target_cm=5) became drive_until_obstacle() on defaults; the parameters are now recovered from the raw response.
• A skill that aborts no longer reports success. A drive that halted on a sensor fault returned SUCCESS with 0 faults. Outcomes are now explicit: reaching an obstacle or running the full time budget is success; a sensor fault, a cancellation or a missing tool is a failure with a stated reason. watch_distance that collects zero readings is likewise a failure — observing nothing is not a successful observation.
• The systemic root, fixed once. A tool returning a dict without a success key was reported successful unconditionally, even when it carried an error. That is the same shape as three earlier bugs; an explicit error now means failure regardless of the missing key.
• Skill results are readable. Parallel-skill output was truncated mid-payload, hiding the only fields that matter:

before: [OK] drive_until_obstacle → {'name': 'drive_until_obstacle', 'tasks': [{'name': 'motor', 'result': None, ...
after:  [OK] drive_until_obstacle → stopped_reason=obstacle at 21.2 cm, final=21.2cm, elapsed=4.4s
        [OK] watch_distance → 15 samples, min=21.4cm, max=98.2cm, avg=54.1cm

v5.0.0 — Bring your own LLM (AETHER is now free to run)

AETHER no longer requires a paid account. The planning LLM is pluggable, and the free tiers are more than enough for a robot: planning runs at roughly 2–5 requests per minute, well inside what Gemini and Groq give away.

pip install aether-robotics
export GEMINI_API_KEY=...     # free at aistudio.google.com/apikey
aether --mode agent

• Auto-detection with fallback. Providers are probed in order and the boot line names what is active: [LLM] Provider: gemini (free tier) · fallback: groq, ollama. Free tiers are unstable by nature, so a 429, 5xx, timeout or connection error moves to the next provider and logs the switch.
• Never falls back on a bad response. Only transient transport failures trigger a switch. A response AETHER cannot parse is reported (with the raw text, tagged by provider) rather than silently re-asked elsewhere — asking a second model the same question hides bugs and spends another quota to get the same answer.
• Pin one provider with AETHER_PROVIDER=gemini, which disables fallback entirely.
• aether doctor gains an LLM Providers section listing every provider, why each is unavailable, and which is active. A missing ANTHROPIC_API_KEY is no longer a failure — a free tier alone is a valid setup.
• Nothing configured? You get the free options first, with signup links and the exact export line — and exit 1, not a traceback.

Existing Anthropic users are unaffected: with ANTHROPIC_API_KEY set it sits first in the chain and planning behaves exactly as it did in v4.5.3.

v5.0.2 — Model IDs move; a key is not a working provider

Google shut down gemini-2.0-flash on 2026-06-01. v5.0.0/v5.0.1 pinned that ID, so the free tier — the entire point of v5.0.0 — stopped working for every install at once, while aether doctor still printed a green check.

• Model IDs are no longer pinned in place. Every provider accepts AETHER_<NAME>_MODEL, so you can move to a working model immediately without waiting for a release:

  export AETHER_GEMINI_MODEL=gemini-3.5-flash    # also: ANTHROPIC / GROQ / OPENROUTER / OLLAMA
  

• AETHER self-heals through a retirement. A 404 triggers a ListModels lookup, picks the best live Flash model, retries once and says so: [gemini] gemini-2.0-flash retired — switched to gemini-3.5-flash. The choice is remembered for 24 h so the next run does not repeat the wasted call.

• aether doctor now probes instead of checking for a key, because key-presence is not availability. Three states, cached for 15 minutes:

  ✓ gemini    verified (free tier, multimodal) — model: gemini-3.5-flash
  ⚠ gemini    GEMINI_API_KEY set but call failed: HTTP 404: ...no longer available
  ⚠ gemini    GEMINI_API_KEY not set (free key: aistudio.google.com/apikey)
  

  Use AETHER_DOCTOR_NO_PROBE=1 offline. If every configured provider fails its probe, that is now a FAIL, not a row of warnings.

• A provider outage is reported as DEGRADED. Previously the 404 fell through to the keyword planner and the objective still reported SUCCESS with 0 faults — it happened to pick a workable tool from memory. Planning silently losing its LLM is not a clean run.

• Opt-in live smoke test. Every provider test before this release mocked HTTP, which is exactly what hid the outage: a dead model ID cannot fail a mocked test. AETHER_LIVE_PROVIDER_TESTS=1 pytest tests/test_live_providers.py makes one real minimal call per configured provider, and asserts the shipped default model still answers. Run it before tagging.

Note on defaults: the current default is gemini-3.5-flash, deliberately not gemini-2.5-flash — that model already carries a 2026-10-16 shutdown date and would have reproduced this bug about two months after release.

v4.5.3 — Hotfix: retrieval no longer breaks planning, and AETHER won't fake a motion command

• Retrieved memory can't hijack the output format. v4.3.0 appended the RAG context after the planner's "reply with valid JSON only" rule, so the last thing the model read was arrow-formatted prose. Once memory was migrated, every plan failed to parse. Context now goes before a restated JSON contract, and the block itself uses plain prose — no arrows, no bracketed lists.
• Parse failures show the response. A bare "Could not parse JSON" made this class of bug undiagnosable. The raw reply (first 600 chars) is now printed on any parse failure, in both the planner and the decomposer.
• A movement command is never answered by a web search. web_search was the universal last-resort fallback in three separate places, so "drive forward until you get close to the wall" became a web search about driving — reported as SUCCESS with 0 faults, then replayed forever from memory. Now: research fallbacks are vetoed for motion intent, cached chains whose category contradicts the objective are discarded, and an intent/execution mismatch reports MISMATCH instead of SUCCESS. If no motion tool can be selected, AETHER says so and names the motion tools that do exist.
• Quieter diagnostics. huggingface_hub's unauthenticated-request warnings no longer print mid-planner-call.

v4.5.2 — Hotfix: reactive tools reachable in autonomous mode

• Autonomous mode registers parallel skills. Agent mode merged registered skill names into the tool manifest; the autonomous bootstrap discarded them. drive_until_obstacle was in the registry but absent from the manifest, so the planner's pick was rejected as "unavailable" and the goal died with "try rephrasing". Both modes now share the same merge.
• The planner only advertises tools that exist. v4.5.1's routing guidance names drive_until_obstacle and watch_distance explicitly, so it is now withheld on robots where they aren't registered — advertising an unresolvable tool is a manifest bug, not an LLM mistake.
• Registry gaps are reported honestly. A dropped tool triggers one re-plan with that tool barred; if the goal still can't be met, AETHER names the missing tool and the capability it needs instead of blaming your wording.
• OLED detection verifies instead of guessing. Discovery used to report an OLED as [OK] whenever the SPI node existed and luma.oled imported — even with no panel wired. Every write then failed on GPIO pin-numbering mode, the planner kept adding display steps because the tool looked available, and objectives whose real work had succeeded were reported DEGRADED. Detection now performs a real write and reports the reason when it fails; writes restore BCM mode and retry once (a later GPIO.cleanup() clears it); the planner no longer adds display steps unless you ask for one; correction aborts immediately on errors no retry can fix; and an unusable output sink no longer counts as a task fault.
• No command exits 0 in silence. The TUI restores the terminal on exit, which made a quick open/close look identical to a command that did nothing; it now prints a closing line, falls back to the classic CLI on any startup error, and main() returns an explicit exit code. New subprocess smoke tests invoke the real entry point and assert non-empty output for every documented invocation — the class of check that in-process tests cannot make.

v4.5.1 — Reactive and observational sensing (safety fix)

v4.5.0 could run a motion and a sensor read concurrently, but get_distance is single-shot: paired with a 3-second drive it returned one reading at the start and the robot then travelled blind. Sensing during motion needs primitives that keep sensing.

• drive_until_obstacle — reactive. Drives forward and stops itself when the ultrasonic sees an obstacle, easing off speed on approach. Use it whenever a goal says "watch for obstacles", "don't crash", or "stop when". Forward only: the sensor faces forward, so reversing "until obstacle" is refused rather than run blind.
• watch_distance — observational. Samples the sensor repeatedly for a whole window and returns every reading plus min/max/avg, without touching the motors — so it is safe in a parallel group with one motion tool. Optional stop_on_threshold_cm acts as a tripwire.
• Intent routing — the planner now distinguishes three intents that look alike in English: reactive ("watching for obstacles" → drive_until_obstacle), observational ("log the distances" → motion + watch_distance), and independent ("at the same time" → a normal parallel group). When a goal is ambiguous and motion is involved, it prefers reactive — an unnecessary stop is cheap, a collision is not.
• Device contention — the safety validator now rejects two tools claiming the same physical device even when their names differ (watch_distance + get_distance, or either alongside drive_until_obstacle, which polls that sensor internally).

goal> drive forward for 3 seconds while watching for obstacles
  [EXEC] drive_until_obstacle(max_duration_s=3.0, stop_distance_cm=20)
  [OK] obstacle at 21.2 cm — stopped

v4.5.0 — Parallel autonomous execution (with hard safety guards)

Autonomous mode now runs physically-independent sub-objectives concurrently instead of one at a time — so the robot can observe while it moves, not only after it stops.

• Parallel groups — sub-objectives may declare "parallel_group": "name" to run together and "depends_on": ["group"] to wait. Omit both and they run sequentially, exactly as in v4.0.0.2. Existing goal files keep working untouched.

• Motion + sensing — running a motion and an observation together. ⚠️ Pair the motion with watch_distance (v4.5.1), not a bare get_distance: get_distance is single-shot and returns one reading at the start of the group, so the robot travels blind for the rest of the motion.

• Hard safety validator — grouping is enforced, not trusted. Five rules reject unsafe concurrency and auto-serialize it:

  Rejected	Why
  Two locomotion tools	they fight over the same motors
  emergency_stop + anything	an emergency stop must run alone
  Two writes to one servo channel	final position undefined
  Two actuator writes on one adapter	the adapter can't service both
  The same sensor twice	one device, and both reads sample the same pose

  A rejected group still executes — one task at a time — and the reason is fed back to the planner so it stops proposing that shape.

• Safety chain unchanged — the v3.9.0 executor still owns daemon workers, the process-wide stop, and the atexit halt. Ctrl-C mid-group pauses the goal (resumable), fires emergency stop, and leaves nothing latched. emergency_stop is always forced to run alone.

• Analytics — parallel_group_executed, parallel_group_rejected, and parallelism_speedup (sequential estimate vs actual wall time) show where concurrency is paying off.

[AUTONOMOUS Group 1/3] Running 2 tasks in parallel
  ● get_distance()
  ● capture_image()
  [OK] 2/2 completed in 411ms

v4.3.0 — Memory retrieval (RAG over your own history)

AETHER now learns from what you have already asked it to do. Every recorded objective is embedded locally, and each new plan is grounded in the most similar successful runs from your history.

Retrieval is opt-in (v4.3.0.1): pip install 'aether-robotics[rag]'. The extra pulls PyTorch, which is a large download and has no wheels on 32-bit Raspberry Pi OS — so the core install stays small and AETHER runs identically without it, just with retrieval switched off.

Hand tracking — the [hands] extra (v5.9.1+)

A vision-language model reasons about a scene; it does not measure geometry. Asked to count fingers it returns "three" for four, or declines. MediaPipe Hands returns 21 landmarks per hand, which turns the question into arithmetic: pip install 'aether-robotics[hands]' and a condition like "watch until someone holds up four fingers" is answered by a local measurement in ~20 ms with no model call at all. Without it AETHER still answers, through the VLM, and says so — the reasoning carries "counted visually, not measured".

Platform support, verified against the package index rather than assumed:

If a pre-existing protobuf>=5 in your environment blocks the install, MediaPipe 0.10.x requires protobuf<5; install it into a clean virtualenv, or install mediapipe separately and AETHER will pick it up.

• Local embeddings — all-MiniLM-L6-v2 (22 MB, 384-dim, ~50 ms on a Pi 4). Downloads once, then runs entirely offline; no objective text ever leaves the machine.
• Semantic retrieval — retrieve_similar(query, k, min_similarity, filter_success) finds past objectives by meaning, not keywords: "go forward for three seconds" matches a stored "drive forward for 2 seconds" at 0.71 similarity.
• Grounded planning — the agent planner, the autonomous decomposer, and aether --fix each get a RELEVANT PAST OBJECTIVES block of successful precedents (~70 tokens). With no relevant history the block is omitted entirely, so prompts are byte-identical to v4.2.0.
• aether memory — inspect and search what AETHER remembers:

aether memory                       # counts, embedding state, disk usage
aether memory list -n 10            # recent objectives and their tool chains
aether memory search "turn around"  # semantic search with similarity scores
aether memory migrate               # (re-)embed entries
aether memory export dump.json      # dump to a file

• Automatic migration — entries recorded before v4.3.0 are embedded on first boot with progress output, written atomically; an interrupted migration simply resumes next run.
• Privacy — objectives are scrubbed by the v3.9.6 redactor before embedding, so no vector is ever derived from a secret. The memory_retrieval telemetry event carries only a query hash, result count, top similarity, memory size, and latency — never the query text and never a vector.

Retrieval degrades gracefully: without the [rag] extra (or if the model can't load) the retrieval block is omitted and planning behaves exactly as it did in v4.2.0 — no errors, no stack traces. aether memory tells you which state you're in.

v4.2.0 — Full-screen TUI

Run aether with no arguments and the terminal becomes a product-grade, Claude Code-style TUI built on textual — minimal, orange-on-your-terminal-background, no full-screen repaint:

• Layout — header (version · mode · adapters), a sidebar mode list with the AETHER mascot parked bottom-left, the active mode's pane, and a live status bar (adapters · telemetry · session clock · action count · animated busy spinner).
• Agent mode — type an objective; planning renders in-flow right below it as a live block: a thinking animation while Claude plans, then a concise "thought" chain (move_forward → get_distance → stop) and a step list whose dots animate ○ pending → spinner running → ● done, each with its wall-clock seconds.
• Doctor mode — the diagnostic report as live ✓/⚠/✗ sections with a rerun key.
• Slash commands + palette — /agent, /doctor, /clear, /help, /exit, … from the input, or Ctrl+P for a fuzzy command palette. Ctrl+D exits, Ctrl+C cancels the current operation (never exits), Ctrl+L clears.
• Classic CLI untouched — every --mode, doctor, analytics, --fix, --calibrate invocation runs the exact pre-4.2.0 CLI. The TUI opens only for bare aether (or aether --tui) on an interactive terminal; pipes/CI and AETHER_CLASSIC=1 always get the classic REPL.

aether                    # full-screen TUI
aether --tui              # explicit
AETHER_CLASSIC=1 aether   # force the classic REPL

Autonomous, Calibrate, Fix, and Analytics currently open in the TUI as panes pointing at their classic commands; native TUI widgets for them land in a follow-up.

v4.1.5 — Rich terminal UI

The whole CLI got a Claude Code-inspired visual overhaul — same flow, same commands, just rendered with rich:

• Boot log adapter panels — each loaded adapter shown with its role (● primary / ○ namespaced), tool count, I2C address, and claimed GPIO pins.
• Autonomous mode live status bar — a persistent panel showing the goal, a progress bar, the current sub-objective, and elapsed time vs. budget, updated between steps with ✓/▶ step markers.
• aether analytics dashboard — sessions overview, top-tools and adapters tables, --fix and autonomous panels, color-coded success rates.
• --calibrate wizard — numbered menu tables and validated rich prompts.
• LLM spinners — a live spinner whenever AETHER waits on Claude (planning, goal decomposition, --fix proposals).
• Colored status tags — [OK]/[FAIL]/[WARN] colorized in terminals.
• Strict plain-text fallback — in pipes, CI, or with --no-color / AETHER_NO_COLOR=1, every output path emits the exact pre-4.1.5 plain text, so log parsers and scripts are unaffected.

v4.1.0 — Local analytics + opt-in telemetry

• aether analytics — local usage dashboards: sessions, top tools by call count and success rate, adapters loaded, error patterns, --fix and autonomous-mode stats. Data lives in ~/.aether/analytics/; --export FILE dumps JSON, --clear wipes it.
• Telemetry is strictly opt-in (v4.1.0.2: one-time consent prompt on every mode entrypoint). When enabled, anonymized events go to PostHog — goal text and errors are hashed, never sent raw. Toggle with aether analytics --enable-telemetry / --disable-telemetry; inspect with --telemetry-status.

v4.0.0 — Autonomous mode

Give AETHER a high-level goal and it decomposes, executes, observes, and replans on its own:

aether --mode autonomous --goal "map out the room" --time-budget 300

• LLM goal decomposition — the goal becomes an ordered list of sub-objectives bound to your robot's actual registered tools (never legacy/unavailable ones, v4.0.0.2).
• Self-directed execution loop — each step executes against the live ToolRegistry, logs an observation, and persists the goal after every state change; Ctrl-C loses at most the in-flight step.
• Adaptive replanning — a failed step triggers an LLM replan of the remaining plan, or a clean abort with a reason.
• Resumable — --resume continues a paused/timed-out goal, --status inspects it, --history lists finished goals, --clear drops it.
• Safety — motors are stopped only at end-of-goal or interrupt (each tool already carries its own try/finally stop); a final report synthesizes what actually happened from real observations.

v3.11.5 → v3.11.10 — Namespacing, servo naming, GPIO-conflict detection

• Tool namespacing (v3.11.5) — every adapter's tools register as <adapter>.<tool>; bare names route to the primary adapter, secondaries stay reachable via their namespace. First-loaded-wins collisions are gone.
• --calibrate structured wizard + named servos (v3.11.6) — map channels, name servos (gripper → first-class move_gripper(angle) tool at next boot), set pulse-width limits, and test channels per adapter.
• GPIO conflict detection (v3.11.10) — adapters declare their BCM pins; conflicts are detected at load and shown in aether doctor's GPIO allocation map.
• PCA9685 safety hardening — guaranteed hard-off via MODE1 SLEEP with wake-on-write, FULL-OFF stop writes (no auto-spin on restart), neutral pulses for continuous servos, and exit hooks that fire the correct namespaced emergency_stop.

v3.11.0 — Multi-HAT discovery + multi-adapter loading

AETHER no longer assumes exactly one HAT. It now scans all hardware and loads every detected adapter.

• Multi-pass discovery — every I2C device (and USB-serial port, for MAVLink) is probed; discovery returns a confidence-ranked list instead of stopping at the first match:

  [DISCOVERY] Detected hardware:
    - I2C 0x14: sunfounder_picarx (confidence: 0.95)
    - I2C 0x16: yahboom_robot_hat (confidence: 0.90)
  

• Multi-adapter registration — all detected adapters register in confidence order. Tool-name collisions are first-loaded-wins; the ignored tool is preserved in a collision shadow registry (a _TOOL_ORIGIN map attributes every tool to its owning adapter) and a warning is printed.
• robot.json v1.1 — composite robots get an adapters[] array attributing tools + I2C address to each adapter. v1.0 (single-adapter) genomes keep loading unchanged.
• aether doctor shows each detected adapter, per-adapter tool counts, and a predicted collision count.
• PCA9685 all-call filter — the 0x70 broadcast address is dropped from discovery when 0x40 is also present (it's the same chip answering twice).

Tool collisions were first-loaded-wins in this release; namespacing (v3.11.5) and GPIO-conflict detection (v3.11.10) superseded that — see above.

v3.10 — Self-Healing (aether doctor, aether kits, aether --fix)

AETHER can now diagnose and repair itself.

• aether doctor (v3.10.0) — a read-only diagnostic: Python/OS, group membership, API key, I2C/serial/camera/SPI hardware, which adapter would load, file-system state, and recent boot errors. Exits non-zero if anything fails.
• aether kits (v3.10.0) — list / info <kit> / install <kit>. info is read-only (queried without touching hardware); install runs an auditable per-kit YAML recipe with explicit consent at each sudo step.
• aether --fix (v3.10.5 → v3.10.10) — describe a misbehavior in plain English and AETHER proposes a fix, then drives the robot to verify it before keeping it:
  • Value calibration via ~/.aether/overrides.json (adapter-qualified keys, full history, atomic writes) — e.g. "the car doesn't turn enough" → bumps sunfounder_picarx.turn_angle.
  • Code patches via ~/.aether/proposed_patches/ (v3.10.10) — a unified diff against an aether/ file, restricted by an allowlist (no vendor/test/version files), patch --dry-run-gated, backed up before apply, verified by a behavior test in a fresh subprocess, and auto-rolled-back on failure.
  • Patches never auto-apply; every behavior test is motor-safety gated; the boot path warns if a pip upgrade overwrote an active patch.

See docs/DOCUMENTATION.md (full reference).

v3.9.x — Motion quality, safety, and three more kits

• 10 Tier 1 adapters (v3.9.7): added SunFounder PiDog (quadruped walking gait), Yahboom robot HAT (YB_Pcb_Car, I2C 0x16), and GoPiGo3 (Dexter Industries) — bringing built-in kit support to ten.
• Smooth driving (v3.9.3): drive_until_obstacle drives continuously (re-issuing only on approach-speed band changes) to eliminate start-stop jitter; pulsed fallback for non-SunFounder adapters.
• Robust ultrasonic (v3.9.4–v3.9.5): boot-time sensor health probe + clearer wiring guidance, and a consecutive (not cumulative) bad-read counter so motor-EMI noise no longer trips false "sensor failing" halts.
• Security (v3.9.6): API keys and other secrets are redacted from experience memory (redact_secrets), with a one-time scrub of any previously-leaked secrets at startup. Also restored OLED GPIO mode after the motor probe.

v3.7.0 — Auto-Adapter System

AETHER now detects unknown robot HATs and boards automatically during --calibrate. Seven pre-built Tier 1 adapters cover the most common kits (SunFounder PiCar-X, Freenove 4WD and Mecanum, Adeept HAT v3, PCA9685 generic, L298N direct GPIO, Waveshare motor driver). For anything else, Tier 2 reads the manufacturer's Python library, calls Claude to generate an adapter, runs it through 6 static-validation rules, and requires a live hardware behavioral test before accepting it. Tier 3 is a guided interactive wizard for when no library is available. All generated adapters are stored locally at ~/.aether/adapters/ and load automatically on future runs.

New flags: --generate-adapter-from <path>, --save-to <path>, --no-auto-adapter.

See docs/auto-adapter-system.md.

v3.6.0 — MAVLink Quadcopter Integration

AETHER now drives MAVLink flight controllers (INAV / ArduPilot / PX4) through the same natural-language interface as GPIO robots. The same Robot Genome that maps rover wheels maps quadcopter rotors. Five non-negotiable arming safety rules are enforced in every motor command: arm-permitted flag required, pre-arm check must pass, sensor availability verified, 30-second inactivity auto-disarm, emergency stop always registered. Bench-demo verified (props off). Flight commands (takeoff, hover, land) gated behind --arm-permitted.

See docs/mavlink-integration.md.

Quick Start

pip install aether-robotics                         # core install (fast, ~80 MB)
export GEMINI_API_KEY=...                           # FREE at aistudio.google.com/apikey
aether --mode agent                                 # talk to your robot

pip install 'aether-robotics[rag]'                  # optional: vector memory retrieval
pip install 'aether-robotics[vision]'               # optional: webcam capture (OpenCV)
pip install 'aether-robotics[hands]'                # optional: exact finger/gesture counting

aether --calibrate                                  # first-time hardware setup
aether                                               # full-screen TUI (v4.2.0)
aether --mode agent                                 # classic REPL — talk to your robot
aether --mode autonomous --goal "map out the room"  # hand it a goal and step back
aether analytics                                    # local usage dashboard

Calibration walks every safe GPIO pin (BCM 4–27, excluding I2C/SPI/UART), pulses each with a positional servo sweep, and prompts you to label what moved. The result is a physical_map saved in your calibration profile and loaded automatically at next startup.

If AETHER detects a known HAT board during calibration, it loads the matching Tier 1 adapter and registers capabilities automatically. For unknown boards, it offers to generate one.

Once calibrated:

objective> move the wheel forward for 5 seconds
[PLAN]  [LLM]  servo_cont_wheel
[EXEC]  servo_cont_wheel(speed=50, duration=5)
[OK]    success=True  (5009ms)

What AETHER Does That Others Don't

• Discovers the robot. Calibration walks every GPIO pin, you label what moved, AETHER builds a physical_map with BCM pin, device type, and action label for each actuator (unlike ROS/Viam where you configure drivers manually before the system knows what hardware exists).
• Publishes the Robot Genome. Every calibrated robot gets a versioned robot.json identity card — a stable, portable description of its locomotion class, actuators, and sensors. Capabilities are derived deterministically from the genome (same hardware = same capability set), so skills written for a differential_drive genome run on every matching robot without wiring changes. See docs/robot-genome-v1.md for the published schema.
• Speaks natural language. Type plain English; the LLM planner resolves intent against your robot's genome capabilities and dispatches the correct actuator — BCM pin pre-filled, servo type resolved, direction inferred (unlike ROS action servers that require typed message structs and correct namespace knowledge).
• Detects faults in real time. DRL-First Hybrid FDIR achieves SFRI 69.99, 100% detection rate, and 100% recovery rate over 6,023 real-hardware steps (unlike threshold-rule systems that require manual parameter tuning per platform and miss novel fault signatures).
• Improves through use. Correction traces are logged per step; operational memory and sim-to-real action transfer are on the roadmap (unlike static planners that repeat the same failure mode without feedback).
• Drives drones via MAVLink. The same genome that maps your rover's wheels maps your quadcopter's rotors. Plug in a MAVLink FC (INAV / ArduPilot / PX4), calibrate once, and type plain English — AETHER handles arm, motor test, and attitude commands via the same natural-language interface as every other robot it knows. See docs/mavlink-integration.md.
• Adapts to unknown HATs automatically. Plug in a SunFounder PiCar-X or PiDog, Freenove 4WD/Mecanum, Adeept, Waveshare, Yahboom, GoPiGo3, or any custom driver board and AETHER figures it out during --calibrate. Ten pre-built Tier 1 adapters cover the most common kits. For anything unknown, Tier 2 reads the manufacturer's Python library and generates a validated adapter using Claude — subject to static safety rules, a sandboxed dry-run, and a mandatory hardware behavioral test before it's accepted. Tier 3 collects control snippets interactively when no library is available. Generated adapters are stored locally at ~/.aether/adapters/ and load automatically on future runs. See docs/auto-adapter-system.md.

Robot Genome

aether --genome show

Robot Genome
  ID:         f47ac10b-...
  Locomotion: differential_drive
  Hash:       a3f1d92e...

Capabilities (6)
  drive_backward  drive_forward  emergency_stop  stop  turn_left  turn_right

The genome is stored at configs/robot.json and auto-migrates from physical_map on first load of a v3.4.x profile. Skills declare SKILL_REQUIRES = ["drive_forward", ...] and AETHER rejects skills the robot's genome cannot satisfy — before any hardware moves. Full schema, derivation rules, and skill authoring guide: docs/robot-genome-v1.md.

Commands

Modes

Useful Flags

Autonomous Mode Flags (v4.0.0+)

MAVLink Flags (v3.6.0+)

Auto-Adapter Flags (v3.7.0+)

Self-Healing Subcommands (v3.10+)

Analytics Subcommands (v4.1.0+)

Supported Hardware

Tested and working

Raspberry Pi 4 Model B · USB camera or picamera2 · GPIO servos (positional or continuous-rotation) · SSD1306 OLED over SPI · Anthropic API (LLM planner and vision)

10 HAT boards / kits with Tier 1 adapters (v3.9.7)

Install any of these with aether kits install <name> (recipes shipped for PiCar-X, PiDog, Freenove 4WD, Yahboom, GoPiGo3).

MAVLink flight controllers (bench-demo in v3.6.0)

INAV · ArduPilot · PX4. Auto-detected during --calibrate; arm, motor test, and attitude commands verified at bench (props off). Flight commands gated behind --arm-permitted.

Should work, unverified

Pi Zero 2 W · Pi 5 (requires rpi-lgpio in place of RPi.GPIO)

In development

Arduino/ESP32 serial bridge · multi-robot coordination

Architecture

  User input (plain English)
        │
        ▼
  ToolDiscovery ──────────────► physical_map + robot.json genome
        │                                  │
        │                    AdapterResolver (Tier 1 → 2 → 3)
        │                         └── ~/.aether/adapters/  (persisted)
        ▼                                  │
  LLMPlanner ◄──── genome capabilities injected into planner context
        │
        ▼
  NavigationEngine  (L1 camera / L2 GPIO / L3 MAVLink)
        │                         │
        ▼                         ▼
  Hardware (servo/motor/FC)  FaultAgent (PPO, 15-dim obs → fault class)
                                   │
                             detect · recover · log

Benchmarks

Real-hardware deployment: Raspberry Pi 4, GPIO servos, live camera, Anthropic API planner.

SFRI (Stability Fault Recovery Index) = 35×DR + 25×(1 − MTTR/max_steps) + 10×RR − 30×FPR. Range 0–70; higher is better.

Roadmap

• ✓ Phase 1 — Reverse Engineering — GPIO pin walk, physical_map, LLM-planned hardware control
• ✓ Phase 2 — Robot Genome — versioned robot.json schema, deterministic capability derivation, skill portability (docs/robot-genome-v1.md)
• ✓ Phase 3 — Auto-Adapter System — Tier 1 pre-built adapters (now 10), Tier 2 LLM-generated + validated, Tier 3 guided wizard; --generate-adapter-from offline mode (docs/auto-adapter-system.md)
• ✓ Phase 3.5 — Self-Healing — aether doctor/kits diagnostics, and aether --fix value-calibration overrides + verified code patching (v3.10)
• ✓ Phase 3.6 — Multi-HAT — multi-pass discovery + multi-adapter loading with robot.json v1.1 (v3.11.0), tool namespacing + primary-adapter routing (v3.11.5), structured --calibrate wizard with named servos (v3.11.6), GPIO-conflict detection (v3.11.10)
• ✓ Phase 3.7 — Autonomous Mode — LLM goal decomposition, self-directed execution loop with adaptive replanning, resumable persisted goals (v4.0.0)
• ✓ Phase 3.8 — Analytics + UX — local usage analytics with strictly opt-in telemetry (v4.1.0), rich terminal UI with plain-text fallback (v4.1.5)
• Phase 4 — Vision-Language Grounding — "follow the orange cone", scene-grounded navigation, in progress
• Phase 5 — Operational Memory + Sim-to-Real Action Transfer
• Phase 6 — Multi-robot coordination

Early Access

AETHER is in early access. We're working with a small number of robotics teams and researchers to refine the platform. Email chahelpaatur@aether-robotics.com for access.

Citation

@software{aether2026,
  title   = {AETHER: Autonomous Operating System for Robots},
  author  = {Paatur, Chahel},
  year    = {2026},
  version = {5.0.1},
  url     = {https://aether-robotics.com},
  note    = {DRL-First Hybrid FDIR with physical-map calibration, multi-provider LLM planning (free-tier capable), MAVLink integration, multi-HAT Auto-Adapter System, self-healing calibration/code patching, autonomous goal decomposition, a full-screen TUI, memory retrieval, and safety-validated parallel execution},
}

AETHER is proprietary software in early access. All rights reserved. © 2026 Chahel Paatur.