testsAndMisc/docs
Krzysztof kuhy Rudnicki 1d03b508a7 Let trace stubs emit values, so traces reach guarded branches
A stub that prints nothing makes `size=$(du -sk x)` empty, so every
`((size > 0))` is false and the trace walks past every guarded branch.
Two such traces compare identical while exercising none of the changed
code -- a green check that proves nothing, which is the exact failure
mode this harness exists to prevent.

--stub now takes `name=output`. Measured on a fixture whose `sudo rm -rf`
is guarded by a size test: the silent stub gives `size=[]` / "branch
skipped" and never records the rm; `--stub 'du=4096\t/some/dir'` gives
`size=[4096]` / "BRANCH TAKEN" and captures it.

This weakens the earlier disk_cleanup_check.sh trace, which used a silent
du stub: that trace only proved the empty-size path identical. The real
run from /tmp is what covered the populated path. Noted in the evidence.

Docs also record two limits found while surveying: file-placement
installers are not yet traceable (stub cp/chmod/ln and the trace is
empty; don't and it rewrites the live system), and baselines for scripts
reading relative paths must run from the script's own directory.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011w2Pj4Ek3ZNMQVYcFHgXDY
2026-08-16 22:59:40 +02:00
..
explanations session_autopsy: badge counts only significant candidates; zero-token aliases 2026-07-25 18:05:49 +02:00
superpowers Let trace stubs emit values, so traces reach guarded branches 2026-08-16 22:59:40 +02:00
app-split-recipes.md Add docs/app-split-recipes.md; update the handoff to 78 left 2026-08-16 20:51:38 +02:00
device-owner-wipe-checklist.md inFakt is SMS-only 2FA, so the wipe cannot strand the account 2026-08-10 20:04:06 +02:00
dns-filtering-parked.md Park phone DNS filtering: Private DNS fails closed, so the PC cannot host it 2026-08-05 10:05:16 +02:00
mcp-shortlist.html docs: add MCP server security-triage shortlist 2026-07-17 19:16:31 +02:00
python-split-recipes.md Apply prettier to the handoff and recipe docs 2026-08-16 18:27:18 +02:00
shell-split-recipes.md Record the verification lessons; split the recipe doc at the cap 2026-08-16 22:06:08 +02:00
shell-split-verification.md Let trace stubs emit values, so traces reach guarded branches 2026-08-16 22:59:40 +02:00
syncyomi-restore-runbook.md syncyomi_guard: refuse a collapsed payload as the new good copy 2026-08-10 15:33:18 +02:00