Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add easyzoom/aix-skills --skill bootloader-debuggit clone --depth 1 https://github.com/easyzoom/aix-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/easyzoom/aix-skills/bootloader-debug)<a href="https://agentmods.dev/skills/easyzoom/aix-skills/bootloader-debug"><img src="https://agentmods.dev/badge/skills/easyzoom/aix-skills/bootloader-debug/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/easyzoom/aix-skills/bootloader-debug"><img src="https://agentmods.dev/badge/skills/easyzoom/aix-skills/bootloader-debug.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00035 | $0.00868 |
| Opus 5.5 | $0.00014 | $0.00347 |
| Sonnet 5.5 | $0.00007 | $0.00174 |
| Haiku 4.5 | $0.00003 | $0.00087 |
Grade A, and why
bootloader-debug scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Bootloader Debug
Overview
Use this skill to debug bootloader and application handoff problems without destroying recovery paths. Verify memory layout, image metadata, vector table, stack pointer, reset handler, validation, and rollback state before reflashing or erasing boot regions.
When To Use
Use this skill when:
- A bootloader cannot start an application or jumps to the wrong image.
- OTA/upgrade succeeds but the new firmware does not boot.
- The issue involves image headers, checksums, signatures, slots, rollback, vector table relocation, or boot pins.
- The user mentions MCUboot, U-Boot, vendor bootloader, IAP, DFU, app offset, or recovery mode.
Do not use this skill for ordinary application crashes after a confirmed clean handoff; use embedded-fault-debug. For MCUboot-specific slot/signing/swap issues, use mcuboot-integration. For OTA delivery pipeline issues, use ota-update-integration.
First Questions
Ask for:
- Chip/board and bootloader type.
- Memory map: bootloader, app slot, scratch, config, NVM, and backup areas.
- Image format and validation: raw binary, HEX, signed image, checksum, metadata header.
- Upgrade state: active slot, pending, confirmed, rollback, recovery, or unknown.
- Logs from bootloader and application if available.
- Whether recovery access still works.
Workflow
-
Protect recovery. Do not erase bootloader, recovery slot, calibration, or persistent upgrade state without explicit approval.
-
Confirm memory layout. Compare linker script, flash programming address, image header, and bootloader slot configuration.
-
Validate handoff basics. For MCU apps, check initial SP and reset handler at the application offset. For Linux boot, check kernel, device tree, rootfs, and bootargs.
-
Check image decision logic. Inspect version, checksum/signature, pending/confirmed flags, rollback counters, and slot priority.
-
Trace the jump. Halt before handoff, inspect target SP/PC, vector table relocation, interrupts, clocks, caches, and peripheral state.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 103 lines · 35 tokens per session scan A 94268c7931e0
bootloader-debug is a skill published in the GitHub repository easyzoom/aix-skills (38 stars, last pushed 3mo ago), licensed MIT. It adds 35 tokens to every session and 868 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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