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Records why the report code was spread across three modules and what the
consolidation buys, so the next reader does not have to re-derive it from the
diff. Names the new functions explicitly rather than presenting the change as
pure code motion -- that framing points reviewers away from the code that
carried the defects.
Three findings this PR deliberately does not close get one handoff each, per
CLAUDE.md: the worker-result tuple hil_report still unpacks positionally,
SKILL.md's no-boards rule drifting from the code, and write_report's two
non-atomic writes. Drops the pr3836 handoff, which this branch implements.
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The markdown IS a rendering of the sidecar now: every writer goes through
render_report(), so a table can never contain something the JSON does not. Four
writers previously composed it independently and three wrote no JSON at all --
and those three are exactly the paths where the run died, so a JSON consumer saw
nothing on the runs that mattered most. The per-board verdicts an agent hands
back reported the whole fleet as "no report row" while a human reading the
markdown saw the real story.
The document gains the two fields the markdown carried but the JSON did not:
`scope` (a three-board PR run and a full run that lost 24 boards were
indistinguishable) and `caveat` (how the run ENDED -- abandoned, aborted, no
boards). `banner` keeps its existing meaning: the rig-health conditions the
cells were collected under. The distinction is load-bearing, because banner
carries across an --accumulate retry and caveat must not; conflating them made a
clean retry publish an abandonment that never happened, and let a stale notice
from an earlier attempt silence a genuinely new one.
Consolidating into helper/hil_report.py is what makes that complete. The
renderer, the writers, the merge and the fold to per-board verdicts live in one
module that hil_test.py and hil_health.py both import. That dissolves the import
cycle which forced write_timeout_report to compose its own markdown -- the
pool-guard fallback renders like everyone else, so all five writers are
byte-identical -- and removes the second copy of the cell classifier, which
hil_summary.py's docstring described as "the EXACT classifier hil_test.py's own
tally uses". Two copies of one rule, kept in sync by hand against re-typed emoji
literals: change REPORT_CELL and the human's table and the agent's verdict
silently disagree.
hil_summary.py is deleted; its CLI moves here and the two harness docs that
invoke it by name follow. `caveat` gates the workflow verdict and is required by
its schema, because on the abandon path every row can legitimately pass while
hil_test.py exits non-zero, and an operator omitting the field would silently
disable the gate.
NOT purely code motion, and worth reading as new code: measured against master,
hil_test.py held only render_matrix and accumulate_report. render_report,
write_report, mark_report_abandoned, mark_report_no_boards, _load, cell_state
and the scope/caveat plumbing are new, and three rounds of review found their
defects there. Each was reproduced before being fixed and is pinned by a test: a
stuck board that already had a row got no pool-timeout cell and summarized as a
pass; a stale board-locked cell masked it, so a board that wedged the rig was
published as LOCKED and re-run; mark_report_abandoned republished the markdown
even when it declined to stamp, inspected the wrong field, gave up on a missing
or torn sidecar, and called the table "partial" against SKILL.md's contract that
it IS this run's; write_report swallowed OSError, making two layers of fallback
dead code, and committed the JSON before rendering; a sidecar with a null banner
or a non-list rows killed a fully successful run with no artifact at all; an
unhashable cell value raised on the normal accumulate path; the no-boards exit
republished a previous run's rows, and its guard blocked even a fresh run.
_load is the trust boundary for all of it, since hil_ci.sh uploads a sidecar as
the --accumulate merge base and it is therefore untrusted input. A corrupt cell
drops rather than being coerced to str, which would classify it as a pass.
Verified on the rig: a 25-board fleet run, ten randomized passes mixing fresh
and --accumulate over different board sets, and every containment path exercised
against the module actually staged there.
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Rule 17 (unclassified -> full on both axes) is the fail-open net for paths nobody
anticipated, and it must stay that way: a wrong `full` costs runner minutes and is
visible in the run, a wrong `empty` costs a merged regression and is invisible.
But nothing in the tree should REACH it, and 254 tracked files did.
The cost was real. PR #3842 changed a skill, a README and .gitignore; .gitignore
matched no rule, so both axes went full and 74 cmake legs span up runners to do
checkout + toolchain + get_deps before skipping the build, plus the whole 30-board
rig. Three changes, none of which touch rule 17 itself:
1. _META_RE - repo metadata and tooling no Build step reads: .gitignore,
.gitattributes, .clang-format, .codespellrc, .pre-commit-config.yaml,
.readthedocs.yaml, .PVS-Studio/, .idea/, sonar-project.properties, the
packaging manifests, CMakePresets, udev rules, test/{fuzz,unit-test} (their own
jobs build those), the non-build .github/ files, and the tools/*.py scripts no
build invokes. Deliberately NOT included, and still full: .circleci/**,
.github/workflows/build*.yml, .github/actions/**, .github/scripts/**. The line
is "does a Build step read this", not "is it source".
2. Rules 15 and 16 now match what they already claimed. Row 15 names
examples/<role>/CMakeLists.txt and the regex never had it; row 16 says
tools/build*.py but anchored tools/build\.py$. Both got the right answer only
because rule 17 caught them on the way past. Also names their siblings -
family_support.mk, family_rules.mk, src/CMakeLists.txt, src/tinyusb.mk - and
.circleci/**, which generates the whole CircleCI matrix and was in no row at all.
3. src/typec/** gets row 12b. It is listed unconditionally by both build systems
but its body is `#if CFG_TUC_ENABLED`, which only examples/typec/power_delivery
sets - the same shape as the class rule, so the same answer: the examples that
enable it (stm32g4 and stm32u5 after the buildability prune), and nothing on the
rig, which runs no typec test. It was force-fulling 82 families and all 30 boards.
TestNoTrackedFileIsUnclassified walks every tracked file and asserts none reaches
rule 17, on both axes - 254 -> 0. Verified it fails when a new unclassified path
appears. That turns 17 into what it should be: unreachable for anything in the
tree, so it fires only for genuinely new shapes, and the author is told to write
the row rather than letting the fall-through pick an answer for them.
test_full_paths used sonar-project.properties as its stand-in for "unclassified";
that is now metadata, so the case moved to the new
test_repo_metadata_is_not_a_build_input, with test_the_build_machinery_is_still_full
pinning the other side of the line.
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Every one of these dropped coverage silently - the worst failure mode here,
because the PR still goes green. Found by review, each reproduced first.
Selection rules:
* class_macros derived the config macro from the class DIRECTORY, so a change to
src/class/midi/midi2_device.c selected the midi_test examples (which do not
compile it) and never examples/device/midi2_device (the only one that enables
CFG_TUD_MIDI2, and the only one that does). The file's own macro is unioned in
where it differs - union, never replace: over-selecting costs a build,
under-selecting merges a break.
* the ${FAMILY_MCUS} fallback added for espressif fired on any family whose
_family_mcus came back empty, and _cmake_sets is if()-blind and keeps the FIRST
definition - so mcx/frdm_mcxn947 answered MCXA15, a token six examples' skip.txt
names, dropping 12 firmware images CMake builds. Limited now to families that
never spell set(FAMILY_MCUS ...) at all.
* lib_examples read only an example's top-level CMakeLists.txt/Makefile;
host/msc_file_explorer_freertos names lib/embedded-cli in src/CMakeLists.txt and
survived by luck. The whole example tree is scanned. (SEGGER_RTT and rt-thread
still resolve to nothing: all three references sit inside a LOGGER=rtt guard no
CI build sets - the documented ruling, not a miss.)
* get_family_boards applied ci_skip_boards/ci_preferred_boards only under
GITHUB_ACTIONS/CIRCLECI, so the selector answered differently on a laptop than
on a runner; _prune_buildable forces CI semantics. Its one-board pick also
abandoned the whole preferred list when entry one could not build the -e set,
and asked skip_example without the build's -D tokens.
* _config_enables and lib_examples still read with the locale encoding - under
LC_ALL=C the selector tracebacked on three tracked tusb_config.h files. The
whole selector and its suite run clean there now.
Workflows:
* the Membrowse Upload step omitted $EX_ARGS, but --one-first now picks the board
from the -e set, so it configured a different, empty build dir and uploaded
--identical for a board never compiled. It takes $EX_ARGS for the BOARD; the
target stays the aggregate, which has no DEPENDS and still records every example.
* blanking FAM_REGEX reset only build_filtered, leaving the build scoped while
code-metrics took the UNSCOPED branch and diffed a 1-family run against the full
averaged baseline. All three drop together now, as CircleCI's fall-open does.
* CircleCI's EX_ARGS had no character screen and is used unquoted, and its
code-metrics job still exit 1'd on an empty metrics set - which a scoped build
makes a legitimate outcome.
* a `ci-full` PR label now turns the scoping off for one PR. A selector bug
under-selects silently, and without a label the only ways back to a full matrix
are accidental.
Performance, since the selector gates every other job: family.cmake texts are read
once rather than per changed directory (a 6,000-file dep bump re-read 84 files
99,892 times) and _scrape_mcu is cached: 2.2s -> 0.29s there, 0.8s -> 0.33s on a
class diff.
Tests: a drift guard for hw/bsp families absent from ci_set_matrix.family_list
(they select zero legs now, where they used to ride the full matrix); the rule-4
port test asserted a SUBSET, which set() satisfies, so it could not fail on the
empty selection it exists to catch; the GITHUB_ENV guard test counted a SUM of two
guards. Drops metrics.py's --only-examples, which nothing called, and applies the
TOTAL scrub to the by-example branch that skipped it.
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The binding rule table (17 rows x 3 answer columns), the measured effect per PR
shape, and the reasoning behind the parts that look surprising: why empty means
empty, why hw/mcu and lib are rules rather than full-matrix paths, why get_deps.py
is diffed as data, and which build system is the reference. The plan is the
task-by-task record of how it was built, kept as the origin trail.
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Every PR built all 74 legs (2494 example builds on GHA cmake alone) and flashed
all 30 rig boards, whatever it touched. One classifier now walks the PR diff twice
and answers three questions: which families to build, which examples per family,
and which boards run which tests. Fail-open throughout - anything no rule
classifies, any exception, any unusable output falls back to the full matrix, and
a master push always builds everything.
test/hil/helper/hil_select.py moves to tools/ci_select.py: it is no longer HIL-only,
and tools/ is where the build side can import it. test_hil_select.py follows it as
test_ci_select.py.
Rules (docs/superpowers/specs/2026-08-19-ci-build-family-filter-design.md holds the
full table): a port selects the families whose family.cmake references it, and its
role - a dcd change skips host examples and vice versa; a class selects only the
examples whose tusb_config.h enables its CFG_TU[DH]_ macro, following cross-class
includes; an example selects itself; hw/bsp selects its family or board; hw/mcu and
lib select whoever references them. CMake is the reference for all of it - make
follows whatever cmake decides, family.mk is never scanned.
Empty means empty (maintainer ruling): a rule that classifies a path to nothing
selects nothing. Ports no family references, classes no config enables, libs no
example builds and hw/mcu paths that resolve nowhere are all real - nothing
compiles them, so nothing can validate them, and the master-push build is the net.
Structural tests pin each such case with an explicit allowlist, so the day one
stops being empty it fails pre-commit instead of silently narrowing CI.
Per-example builds: build.py grows a repeatable -e, resolved against the targets
CMake actually registered and batched into one `cmake --build --target a b c`.
build_utils mirrors CMake's family_filter (the whole FAMILY_MCUS list, ${...} and
string(TOUPPER ...) resolved) for the cmake side, while the make side keeps
master's algorithm verbatim - the two build systems answer differently and a shared
answer breaks lpc54's make link. hil-build gains this even on a full selection:
1702 example builds become 515.
Transport: the selection travels as a file, never an argv or env var - a mass-sweep
diff selects 261 KB against a 128 KiB exec limit, and E2BIG would fail the step
before its own fallback could run. CircleCI carries the example map inside the
generated config (pipeline parameters cap at 512 chars), swapped into the parameter
defaults by sentinel match, and drops the scoping wholesale if that rewrite fails.
Every PR-derived value written to $GITHUB_ENV/$GITHUB_OUTPUT is character-screened.
Code metrics follow the scoping: metrics.py emits per-example totals, and
metrics_pair_compare compares the (board, example) pairs present on both sides
instead of a scoped run against a full-matrix average.
The selector's own suite gates it in both providers: a selector that exits 0 with
valid-but-wrong JSON is the one failure fail-open cannot catch, so a red suite
means the full matrix.
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The doc carried its own rename instruction for when the branch gained a number;
the branch is PR #3836.
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Four writers produce hil_report.md and three of them write no JSON - the no-boards
exit, the pool-guard fallback and _abandon_exit's text prepend. Those are exactly the
runs that failed, so hil_summary.py, which builds an agent's per-board verdicts from
the sidecar, sees nothing while a human reading the markdown sees the real story. The
scope note is markdown-only too, so a three-board PR run and a full run that lost 24
boards are indistinguishable in JSON.
Five tasks: put scope in the sidecar, render the markdown from the document, give the
two early-exit paths a document, make _abandon_exit set a caveat field instead of
prepending to a file it did not write, then pin the invariant that re-rendering the
JSON reproduces the markdown byte for byte. Split out because it is a hil_test.py
reporting refactor, and the abandon path runs while the interpreter is being torn
down - it deserves its own review.
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Nothing checked the agents, workflows and skills against the code they describe, and
the surface had drifted into stating incompatible rules. This records the protocol
that found the defects and what it cost.
Method: parallel subagents extract every falsifiable claim into JSONL ledgers; a
validator re-reads each cited line and rejects any ledger whose quoted text is not
there, so an extractor that paraphrases or hallucinates fails a script rather than
reaching the verification queue - 1,387 claims, zero such failures. Verification runs
only in the main session, and the same gate pointed at `citation` then checks the
verifier's own work. Hard-earned evidence is source of truth: code is authoritative
about code, experience about hardware, so claims get a fourth verdict, EARNED, and
"no backing found" is never grounds for deletion. All 1,387 claims carry a verdict;
the behavior sweep deliberately never emits CONFIRMED from a token match, because
finding a claim's vocabulary proves presence, not truth.
Every real defect came from cross-document comparison - none from any mechanical
pass. A path-existence lint was built, measured (11 flags on the audited tree, all
false positives, and the target defect is lexically identical to correct text
elsewhere), and rejected; recorded so nobody rebuilds it.
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ERR050101: while an isochronous IN endpoint is active, an IN token addressed to
that same endpoint number on ANOTHER device sharing the host can silently
unprime one of this device's OUT endpoints - control, bulk, interrupt or
isochronous alike. NXP states it cannot be detected by software and raises no
interrupt, so the endpoint simply stops answering and the transfer never
completes.
The workaround is a uniqueness requirement rather than a particular number: the
isochronous IN endpoint must not share its number with any IN endpoint in use on
the bus. One family-wide constant therefore defeats it, since two affected
boards on the same hub then pick the same number and each becomes the other's
aggressor. CFG_TUSB_MIMXRT1XXX_ERRATA_ERR050101 is set only for the parts whose
errata list it - RT1015, RT1020, RT1024 and RT1050, where it is marked no fix
scheduled, plus RT1060 and RT1064 rev A - so RT1010 and the RT11xx family keep
the ordinary number and cannot collide with an affected board beside them.
Several affected boards on one hub can still be given distinct numbers with
-DEPNUM_ISO_IN.
The guard covers every example that has an isochronous IN endpoint: audio_test,
audio_4_channel_mic, uac2_headset, cdc_uac2, usbtest, video_capture and
video_capture_2ch. The video examples move the endpoint only when streaming
isochronously, since the bulk configuration is unaffected, and video_capture_2ch
takes two numbers because it has two streams.
The macro name follows CFG_TUSB_RP2_ERRATA_E2/E4/E15 already in tree, and its
is fixed, and which cannot be told apart at compile time - a way to define it to
0.
device_issues.rst records ERR050101 against every affected part with a link to
each errata sheet, and adds the LPC55S2x USB.3 speed-detection and USB.5
isochronous IN entries, neither of which TinyUSB works around. The branch's
design notes are included under docs/superpowers.
Verified: 340 wedge-free runs on mimxrt1064_evk, which previously wedged within
hours, and the macro resolving to endpoint 0x87 on mimxrt1064_evk against 0x83
on mimxrt1010_evk and stm32f407disco.
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Records the convention in CLAUDE.md -- deferred work is a SEPARATE scope that deserves
its own PR, written by another session, so it is handed off as a writing-plans doc in
docs/superpowers/followup/pr<NNN>-<topic>.md rather than accumulated in the PR that
found it.
Five handoffs from #3803: flasher_recover (convoy-safe recovery for J-Link boards, seven
validated on the rig), the blindness reporting gaps, the usbtest recovery reserve, the
IAR re-run spec, and the pci-rebind stranding question. Each carries what is already
established with its citations and measurements, what remains, and why it was split out.
One doc per follow-up, not one per PR: a per-PR file invites unrelated work into the
same document and rots as a unit.
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Two things the rig taught us that the old guidance got wrong.
A usbfs ioctl wedged in D state cannot be freed on a running kernel. It holds
the device lock, so usb_disconnect() blocks behind it; reboot(2) walks
device_shutdown() and takes the same lock, so every userspace reboot stalls too.
Only sysrq b (emergency_restart, which skips device_shutdown) or hypervisor
action clears it -- all cited to the kernel source. The recovery ladder is
generic across rigs now (ci.lan, hifiphile, a bench PC) and ends at hypervisor
escalation only where host access exists. Two claims are corrected outright:
JLinkExe is NOT convoy-safe, and a park-flash cannot free a device-lock owner.
The hil skill's banner list is what an operator agent matches a report against,
so it enumerates the banners that actually exist, including the D-state note --
which is explicitly NOT a wedge, since a healthy in-flight testusb is
uninterruptible for most of every case and a concurrent CI battery would
otherwise turn a clean run red.
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A wedged USB device used to take the whole HIL run with it. Every worker that
touched the poisoned node blocked uninterruptibly, the pool could not be joined,
map_async discarded every board's result, and the job ran to the GitHub ceiling
with no report at all -- while the self-hosted runner's single job slot stayed
occupied and every queued job waited behind it.
Bound the calls a worker makes itself. read_sysfs, bounded_open and run_cmd all
answer within a wall clock; read_sysfs distinguishes "absent" from "unknown",
because a blocked read is not evidence of absence, and caps stranded readers at
four (each costs a thread and an fd for the life of the process) after which the
worker declares itself blind. mtype, the gio unmount, the libmtp session and the
arecord/iperf reaps go through those bounds; the MTP session runs in a disposable
subprocess, since libmtp's ctypes calls block unkillably in D state.
Bound the run. A pool guard (HIL_POOL_TIMEOUT, 60 min) fires before any job
ceiling and still writes a report. When the pool will not shut down, the sweep
kills what the workers spawned -- descendants, not just direct children, since
flashers run in their own session -- confirms each kill actually landed, and
exits early so the runner is freed. Whatever survived is named in the report.
Deliberately shallow past that point. We do not re-scan process groups, prove
pid ownership, or escalate through sudo: a root-owned survivor is reported, not
force-killed, because signalling a pid we cannot prove is ours is the worse
failure, and the job ceiling backstops whatever this misses. A D-state holder
was never killable anyway.
Recover instead of reporting a wedge. A HUNG usbtest case reflashes its own DUT
through its roster flasher, but only where the flasher can reach its probe past
a poisoned node -- openocd pinned to a validated vid_pid, or esptool. Where it
cannot, the run says so rather than reserving budget for a path that cannot fire.
Raise the CI ceilings above the pool guard so the guard fires first and still
writes its report, and pin --retry 1 on every HIL leg: the guard is a flat
constant and does not scale with max_retry, so argparse's default of 3 would
triple the serialized usbtest tail against an unchanged guard.
Split the module: execution in hil_test/hil_flash/usbtest, infrastructure in
helper/ (locking, health, selection, shared bounded IO), and the two matrix
generators into .github/scripts/ -- ci_set_matrix.py sat in workflows/, where
GitHub treats every file as a workflow definition. 193 tests cover the bounded
paths, the kill ladder, the guard and the selector against synthetic /proc trees
and PATH-injected fakes; a real wedge cannot be manufactured on demand.
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hil, ci: scope HIL builds and tests to the boards a PR affects
Add test/hil/hil_select.py, a stdlib-only selector that maps a PR diff to the
rig boards, tests and BSP families a change can affect, and wire it into CI so
pull requests build and run only those. A port change picks its families' boards,
a class change picks the examples enabling that class, and device/host changes
prune the other role. Anything unclassified — infra, an unmapped port, a selector
error — falls back to the full matrix, and push/schedule runs are untouched.
Move the shared example lists to hil_examples.py; 54 hardware-free tests cover
the rules.
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probes (#3794)
test/hil: add board-pool health check, split hil_test into focused modules (#3794)
Add test/hil/hil_pool_check.py: per-board rig health scan — probe presence,
light-example flash (dfu_runtime; device_info + serial check for host-only
boards), uid re-enumeration, safe recovery (probe authorized-toggle, board
reset), verified board_test re-park, USB topology report, and a markdown
summary table. Missing firmware is built on the spot (tools/build.py, idf.py
for espressif, one get_deps retry); row statuses: ok, flash-failed, failed,
locked. Board locks are always respected, never bypassed.
Refactor hil_test.py into hil_lock.py (flock protocol, controller permits,
hold/release/status CLI; replaces board_lock.py) and hil_flash.py (flashers,
find_firmware, run_cmd). Update WCH probe uids and the board roster in
tinyusb.json; add the hil-pool-check skill.
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The plan doc records why the fork exists and how each vendor source was
ported; the interim handoff it superseded is dropped.
CLAUDE.md: a new worktree should symlink the dependency dirs to the
primary checkout rather than re-fetching them, replacing a single
symlink only when the branch needs a different dep revision. Also allow
'linke' in codespell - WCH-LinkE is a product name.
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- target-debug: fault frame lives on PSP when EXC_RETURN bit2 set (FreeRTOS
tasks) — decode LR before choosing $msp/$psp (Codex; valid, our verify
happened to fault on MSP)
- esp-target-debug: show the Xtensa gdb for S3 in the attach recipe; clarify
adapter serial = USB-SJ iSerial (colon MAC, hardware-verified) vs the
CP2102N flasher uids in tinyusb.json (Codex; second half of the finding
had the identifiers inverted)
- esp plan: align serial form with the verified command; record the real
console-gate outcome (UART0, USB-SJ console untested) (Copilot)
- target-debug plan: Task 4 now consistently $JB/ARMv7-M matching the
executed JLinkExe path (Copilot)
- drop IDE-local .idea files swept in by the rename commit (Copilot)
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Spec (brainstormed): own-skill backend decision, PHY-conflict map, six
verification gates, external-JTAG TODO. Plan executed same-day: all gates
run on the rig; apptrace resolved per its own gate rule as (untested).
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table integration
- Vector catch + Cortex-M fault autopsy, verified with a deliberate bad-load
on stm32f407disco: CFSR=0x8200 (BFARVALID|PRECISERR), BFAR = exact bad
address, stacked pc addr2lined to the faulting line; gotchas recorded
(stale FPB comparators fire phantom SIGTRAPs — scrub first; arm DEMCR
after reset; loads precise / stores imprecise; ARMv6-M has no CFSR/BFAR)
- SWO exception trace + hw PC sampling gate PASSED on F407: 680 KB of
packets in 3 s (0x17 PC samples in flash range, 0x0E SysTick enter/exit);
JLinkSWOViewerCL decodes stimulus only — raw SWORead is the recipe;
SWOStart needs an explicit speed headless
- verifybin 'Verify successful.'; FreeRTOS -rtos plugin lists all 6
cdc_msc_freertos tasks after a run->stop cycle (plain attach = 0xDEAD
placeholder); semihosting anti-note; monitor-mode pointer (untested)
- Intrusiveness table gains the new rows; agent playbook bullet updated;
retrieval gate 5/5 with a fresh reader; executed plan committed
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Opus-tier agent charter for backgrounding a long hardware debug session:
instrument -> build -> flash under one held board lock -> dual-side
capture -> correlate -> refine, strictly one instance, skills as source
of truth (usb-target-debug, usbmon, usb-debug, usb-sniffer, usb-recover,
hil). The charter encodes what dogfooding established:
- diagnosis standard: evidence must show the mechanism, or a fix must
flip the ORIGINAL failing case on hardware; stop after two
evidence-free cycles and hand back a partial diagnosis
- lock cadence: hold for the whole session, release around hil_test.py
runs (it self-locks per board)
- revert semantics: "fix stays, probe goes, re-verify clean" —
instrumentation reverted, candidate fix left uncommitted and
re-verified on a clean build, pristine firmware reflashed before
lock release
Returns a machine-parseable diagnosis report including ruledOut[] —
disproven hypotheses are deliverables. Spec roster updated (opus/xhigh,
effort requested per agent() call).
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Completes the debugging toolset (usbmon = what the host exchanged,
usb-debug = why the host acted, usb-sniffer = what crossed the wire):
TU_LOG/RTT capture, per-probe GDB autopsy without reset, RAM ring-buffer
event trace, J-Link DWT_PCSR PC-sampling, dual-side capture posture, and
board-lock rig discipline. Includes the implementation plan it executes.
Hard-won warnings baked in from real bring-up sessions: volatile ring
buffers vs -Os dead-store elimination, RTT NO_BLOCK_SKIP post-mortem
limits (no overwrite mode exists), DHCSR validity anchors for register
snapshots, release-lock-before-hil_test, and that a marginal just-recabled
link can fake a deterministic firmware bug.
Also ignore .claude/worktrees/.
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Confirmed by a 10-finder / 28-verifier adversarial review pass:
board_lock.py — the flock is now the sole authority: drop cmd_hold's
pid-liveness pre-gate (a live hil_test.py pool worker's stale record no
longer blocks a genuinely free board); cmd_release probes the flock and
only signals a verified holder, refuses to kill hil_test.py holders
(CI mid-test), handles PermissionError; the holder daemon truncates its
lock records on SIGTERM and keeps the success pipe clear of fds 0-2
(closed-stdio hold used to leave an orphan holder while reporting
failure); --config default resolves beside the script.
hil_test.py — truncate the lock record on per-board release (pool
workers outlive their flocks); warn instead of silently failing open
when the lock dir is unusable; error out on -b names absent from the
config (was a silent zero-test exit 0, readable as a green HIL run);
drop an emptied board row in accumulate_report (variant boards left a
blank ghost row).
workflows — remove the stray positional arg that made the validate size
stage exit 2 on every run; wrap JSON.parse(args) in all six scripts;
factor pr-babysit's drifted reply recipe into postReplyRecipe and dedup
refutation replies across cycles; validate args.pr and maxCycles;
driver-review rejects an empty dimensions list; hil-validate drops a
dead guard clause and retries diagnostics with -v -r 1.
agents/docs — port-dev scopes git clang-format to its own files
(concurrent workers reformatted each other in shared checkouts);
hil-operator/hil skill wording matches actual fail-fast output; the
implementation plan is now a DO-NOT-EXECUTE historical record (banner +
checked boxes) so plan-executing agents cannot revert shipped files.
Verified: lock storm 1-winner-in-10, stale-record hold, closed-stdio
hold, dead-pid cleanup, CI-holder refusal, ghost-row 4-scenario merge,
unknown-board exit 1, py_compile + check.sh on all six workflows,
pre-commit clean.
Co-Authored-By: Claude Fable 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Upj4hta5TNoAbidqeC1zZ6
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Review-fix batch (owner-confirmed) on the multi-agent harness:
- board_lock: detach holder stdio so a captured `hold` cannot hang on the
daemon's inherited pipe; probe locks by holder-pid liveness instead of a
momentary flock, which could spuriously fail a concurrent acquirer
(storm-tested: 1 winner in 10, 0/15 acquire failures under probe storm)
- hil_test: locked board renders a visible board-locked fail row so the
report matches the exit code; stale marker cleared on a real re-run
- pr-babysit: autoPush now opt-in (default dry run); resolve recipe
paginates reviewThreads; post-push resolve gets issue-comment fallback
- validate: size stage honors non-default base via --base-branch; pvs
stage delegated to the new agent
- new static-analyzer agent (sonnet): PVS-Studio SAST+MISRA for one
board, structured findings gated on files changed vs base
Co-Authored-By: Claude Fable 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Rn1AN5DsTdFhRwhugfgKZi
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Add worker agents (builder, port-dev, driver-reviewer, hil-operator,
pr-monitor), deterministic workflows (validate, fanout-dev, driver-review,
hil-validate, full-check, pr-babysit) and a /pre-pr gate skill, so sessions
can fan build/test/review/PR-triage work out to tiered subagents. pr-babysit
drives a PR to green: triage CI + bot reviews, fix validated findings, verify,
push, and reply-to + resolve each inline review thread (fixed or refuted).
Replace the stop-the-runner HIL discipline with per-board flock locks:
test/hil/board_lock.py plus a fail-open guard in hil_test.py let CI and dev
sessions share the rig per board (locked boards fail fast and re-run;
HIL_NO_BOARD_LOCK=1 is a user-authorized bypass). The actions-runner is
never stopped.
Design spec, implementation plan, and real-rig smoke evidence under
docs/superpowers/.
Co-Authored-By: Claude Fable 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Rn1AN5DsTdFhRwhugfgKZi
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