Two levels of pure taxonomy carrying no information, and a 2-directory
cap leaves no room for them. Categories now sit directly under
linux_configuration/: features, fixes, utils, misc, fresh-install,
installers, diagnostics, gaming, boot_recovery, periodic_background, lib,
meta, tests. A script's own lib/ and tests/ are exempt from the cap, so
those stay put.
Depth violations 248 -> 139; roughly 40 of the remainder are inside
digital_wellbeing and hosts, deferred until the guard-lib repoint.
The moves are the easy half. What breaks is every path that counted
levels, and three classes of it had to be found by resolving paths rather
than reading diffs:
- 52 relative `source` lines for lib/common.sh and lib/android.sh. The
correct prefix differs per file: 40 were ../../ and 12 were ../../../,
so a blanket replace would have fixed one set and broken the other.
- REPO_ROOT in 7 fixes/lib/tests harnesses and setup_syncyomi_guard.sh,
each walking up four levels from a directory now two levels shallower.
This caused a real regression -- the fixes suite went red with
"log_warn: command not found" -- caught by running it and comparing
against the pre-move baseline worktree.
- conftest.py's sys.path entries, which took the pytest gate down with
14 collection errors, and the `# shellcheck source=` directives, which
took shellcheck down with SC1091.
16 symlinks in $HOME broke, including the entire i3blocks bar. All
repointed, and cpu_monitor/memory/disk/time/volume were run to confirm
they emit real output rather than merely resolving.
Verified: 1798 tests pass at 100% coverage, 8 of 9 lib/tests suites pass
(the ninth needs the coverage jail, identically at baseline), pre-commit
is clean, and the two untracked secret configs are still ignored after
their gitignore paths changed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PJrqKERAo5QUeEHWS5Asgp
The on-device focus enforcer was overheating the phone by rebuilding
firewall rules every tick. State-gate the work instead:
- dns_enforcer.sh: only rebuild the DNS chain when it's missing, detached
from OUTPUT, or the wrong rule count (chain_intact/expected_rule_count),
instead of flushing+reinserting ~50-100 rules every tick (~50% netd CPU).
- config.sh: throttle CURFEW_NET_REASSERT_INTERVAL 1s -> 15s (1s forked
iptables every second all night, overheating); also whitelist
com.kuhy.wake_alarm_sync (general + curfew-night lists).
- focus_daemon.sh: build the blocked-system-apps file once at startup and
memoize is_allowed() per tick.
- deploy.sh: drop `su --mount-master` (removed in Magisk v26+).
- SKILL.md: document the state-change-gate polling pattern.
Verification: shellcheck clean; no-polling-antipatterns + evidence/contract
hooks pass. Evidence + contract artifacts included.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017RRCdR4D8SaVrN2xraMQxM
Resource-usage report showed ~29 cores of average load coming from i3blocks
helper scripts forking awk/tr/grep/bc/sensors/nvidia-smi every tick. Rewrite
all five hot-path scripts to eliminate forks:
- volume.sh: persist mode, blocks on 'pactl subscribe' event stream.
No polling, no sleep, no fork per tick.
- gpu_monitor.sh: persist mode, single long-lived 'nvidia-smi --loop=5'
feeds a bash 'while read' loop. Falls back to /sys for amdgpu.
- battery_status.sh: reads /sys/class/power_supply/BAT*/ directly.
Zero forks; replaces 'acpi | awk' pipeline.
- cpu_monitor.sh: reads /proc/loadavg and k10temp/coretemp /sys/class/hwmon.
Zero forks; replaces 'sensors | awk | tr' + bc arithmetic.
- motherboard_temp.sh: reads nct*/it*/f71* Super-I/O hwmon node directly.
Zero forks.
Configure volume + gpu_monitor with interval=persist so i3blocks keeps
one long-lived producer each instead of forking per tick.
Also add:
- kill_stale_recorders.sh -- kill stray ffmpeg x11grab / dotnet-trace /
dotnet-monitor processes left running after sessions.
- monitors.slice -- resource-capped user slice (CPUQuota=50%,
MemoryMax=512M, MemorySwapMax=0 for zram safety, TasksMax=256) to
bound future monitoring regressions.
- efficient-polling-scripts SKILL -- rules for writing status-bar and
polling scripts without forks; fork-pipeline to bash-builtin translation
table; verification checklist.
Verified live: strace -c on cpu_monitor.sh shows 1 execve / 0 clones;
persist producers (pactl subscribe, nvidia-smi --loop) show 0 CPU ticks
over a 3s idle sample. Per-invocation timing 1.6-1.9 ms (was 30-80 ms).
