ota-deployment-guardian

Included with Lifetime

$97 forever

Use when users need safe over-the-air update workflows for ESP32-class boards or Arduino Uno R4 WiFi, including OTA sketch requirements, network port discovery failures, remote recovery planning, and rollout safety checks.

General

What this skill does

# OTA Deployment Guardian

Use this skill when a device is updated remotely and losing the update path
would be expensive.

## Resources

- `references/ota-safe-sketch.md` - minimum sketch-side OTA contract and guardrails
- `references/discovery-and-network-ports.md` - IDE, mDNS, IP reachability, and disappearing network port triage
- `references/recovery-and-rollback.md` - rollout safety, rollback, and last-resort recovery planning
- `../../docs/board-support/uno-r4-family.md` - Uno R4 Minima and Uno R4 WiFi board-family caveats

## When to Use

Use this skill when the request involves:

- OTA uploads for ESP32, Nano ESP32, or Uno R4 WiFi
- network port appears briefly or disappears
- IDE can ping the device but cannot upload
- keeping a remote weather station or deployed board updateable
- avoiding self-bricking after an OTA deployment

Do not use this skill for ordinary bench USB uploads unless the user is clearly
preparing for later OTA deployment.

## Workflow

1. Confirm the board family:
- ESP32 or Nano ESP32 -> open `references/ota-safe-sketch.md`
- Uno R4 WiFi -> also open `../../docs/board-support/uno-r4-family.md`
2. Separate discovery failures from sketch failures:
- ping works but network port disappears -> open
`references/discovery-and-network-ports.md`
- OTA works once, then disappears after the new sketch runs -> verify the new
sketch still implements the OTA path in `ota-safe-sketch.md`
3. Before suggesting a rollout, check `references/recovery-and-rollback.md` for
recovery path, rollback strategy, and what must stay available over USB.
4. Treat core-version changes as a possible variable when OTA previously worked
and later became unreliable.

## Core Rules

- Never assume OTA remains available after a new sketch unless the sketch keeps
the OTA path alive.
- Distinguish reachability from OTA discovery. Ping success does not prove the
IDE can discover or upload.
- Keep at least one recovery path in reserve for high-cost remote devices.
- For Uno R4 WiFi, keep board-family caveats explicit. Its WiFi side is not the
same operational model as a plain ESP32 board.

## Verification

- Confirm the sketch still connects to the intended network and services the OTA
path after boot.
- Confirm whether the failure is discovery-only, upload-only, or full device
reachability loss.
- For remote deployments, confirm the rollback or physical recovery plan before
recommending an update.
- If board or core versions changed recently, capture the exact versions before
concluding the failure is in user code.

## Integration

- Pair with `arduino-cli-skill` when the user needs command-line upload or port
inspection.
- Pair with `field-power-and-connectivity-triager` when the OTA path fails only
off USB or in field power conditions.
- Pair with `error-message-explainer` when the OTA sketch itself does not build.

Files: 4

Size: 7.1 KB

Complexity: 23/100

Category: General

Source: https://github.com/wedsamuel1230/arduino-skills/tree/main/skills/ota-deployment-guardian

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