nhat092005

Use when starting work in an unfamiliar repository, resuming after context loss, needing to discover the real source of truth before editing code, or turning a rough onboarding prompt into an execution-ready repo-orientation prompt.

Create new agent skills with proper structure, progressive disclosure, and bundled resources. Use when user wants to create, write, or build a new skill.

Use when a local change may hide broader architectural coupling, naming drift, or complexity growth and you need to evaluate it in system context before proceeding.

Ultra-compressed communication mode. Cuts token usage ~75% by dropping filler, articles, and pleasantries while keeping full technical accuracy. Use when user says "caveman mode", "talk like caveman", "use caveman", "less tokens", "be brief", or invokes $caveman, /caveman.

Interview the user relentlessly about a plan or design until reaching shared understanding, resolving each branch of the decision tree. Use when user wants to stress-test a plan, get grilled on their design, or mentions "grill me".

Write, review, and fix GNU Make and Kbuild Makefiles for C/C++ projects, Linux kernel modules, and recursive monorepo builds. Use when the user mentions Makefile, GNU Make, Kbuild, obj-m, KERNELRELEASE, CFLAGS, phony targets, install or clean rules, or wants to create or repair a C/C++ build.

Use when a request is ambiguous, high-risk, or plausibly implementable in multiple valid ways, before making code changes or locking an execution plan.

Create a temporary handoff note for opening a new chat from a live MNHAT workstream. Use when the user explicitly asks to compact, hand off, or resume work in a fresh session without replacing `.mnhat` as the source of truth.

Debugging techniques for BeagleBone BSP. Covers kernel crash analysis (oops/panic), JTAG/GDB, serial console, dynamic debug, FreeRTOS task inspection, U-Boot debug, and Yocto build issue diagnosis.

Systematic reasoning scaffold for device-tree work. Covers node layout, compatible-string matching, pinctrl, clocks, reg addresses, probe flow, and overlay vs upstream rules. Use when writing a DT node, diagnosing probe failure, or reviewing DTS changes.

C coding patterns and best practices for BeagleBone BSP. Covers kernel driver patterns, FreeRTOS idioms, interrupt safety, MMIO access, DMA patterns, and Yocto recipe writing.

Think-before-coding discipline for any non-trivial task. Enforces 4 Karpathy principles (assumption checking, simplicity, surgical changes, goal-driven execution) plus 2 BSP additions (naive-first, definition-of-done). Use for planning, refactors, debugging, code review.

Reasoning scaffold for U-Boot work. Covers SPL vs full U-Boot, defconfig/fragment strategy, boot environment, bootcmd, zImage+DTB load, TFTP, and the handoff contract with the kernel. Use when editing U-Boot sources/patches, tuning boot env, debugging boot-stage hangs.

Reasoning scaffold for Yocto/BitBake recipe work. Covers recipe vs bbappend, SRC_URI pinning, inherit module, DEPENDS vs RDEPENDS, machine config, sstate cache, and typical failure modes. Use when writing/modifying recipes, debugging bitbake errors, or extending meta-bbb.