Embedded-Lab-Control (johnjezl)VerificationConfidence: Medium

The lab's MCP serial_send tool drops the ESC byte before the server sees it; the agent sent the F11 sequence during the Jetson Orin Nano's boot window and 'It had no effect: the board went on to L4TLauncher: Attempting Direct Boot.' UEFI menus, U-Boot's Ctrl-C and similar prompts cannot be driven. They do not yet know if the stripping is in labctl or the MCP transport.

Impact Analysis

Persona

Hardware Engineer

Team Size Impact

5x Multiplier

Prototype Delay

3 Days

Est. Annual Cost

$30,000

1 user · 1 month240 min
Rest of team960 min
Rest of year13,200 min

monthly_minutes × 12 × team_multiplier ÷ 60 × $75/hr = $30k/yr

$75/hr assumed rate.

Annual team-minutes decomposed from the reported monthly inputs.

Evidence & Sources

1 Sources

johnjezl/Embedded-Lab-Control Issue #33: MCP serial_send cannot transmit control characters (ESC 0x1B stripped) - UEFI menus not drivable

github.com

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Analyst Notes

From the Grok pain-radar digests, Oct 28-29 2026 (Oct 28 8:41 AM ET through Oct 29 early-morning Haitch editions). Verified live 2026-10-29: issue/PR read; title and state confirmed.