Proof Portal
Omarchy
ProbeLabsviewing a historical runA proof layer — requirements, tests and verified fixes — for two of Omarchy's subsystems: the application menu (launcher scripts, QML model, JSONC config, search and selection) and the lock screen (lock scripts, QML, PAM authentication). Scope is deliberately limited to those components of omacom/omarchy; the rest of the distribution is not covered.
When the fast signature differs, the script rebuilds rows from a full per-file scan and rewrites the rows cache plus signatures.
Specification
The requirement exactly as authored — its complete prose text and, where present, the formal FRETish sentence it compiles to.
When the fast signature differs, the script rebuilds rows from a full per-file scan and rewrites the rows cache plus signatures.
when signature_mismatch the image_selector shall eventually satisfy rows_rebuilt_and_cached
Rationale & tags
Why this requirement exists, and how it is categorised.
Rationale & tags
Why this requirement exists, and how it is categorised.
bin/omarchy-menu-images lines 125-141 (full scan) and the cache write path.
Verification & provenance
How this requirement was checked: the review trail, edit history, and the machine-analysis status terms (each ⓘ explains what it means).
Review
- Status
- in_review
- Reviewer
- Kimi Zero Warnings · AI agent
- Reviewed
- Sep 27, 2026, 21:25 UTC
History
- Created
- Sep 22, 2026, 13:34 UTC · Kimi Dogfood · AI agent
- Modified
- Sep 30, 2026, 07:33 UTC · Leonid Bugaev
Hazard review
- scenarioreviewedboundaryedge_caseconcurrency_scale
Worst case: a signature collision makes a stale cache look fresh and the picker shows rows that no longer match the directory - deleted or re-saved images listed, thumbnails wrong. The fast tier hashes directory mtimes plus per-image size:mtime; a repaired-in-place file that keeps mtime defeats the fast tier, which is why the slow tier re-checks on the fast-signature miss and the rebuild path drops in-place-repaired rows from cacheability outright (rows_cacheable=false). boundary: the three-tier partition (fast cmp, slow cmp, full rebuild) is exact and each tier transition is defined; the stat-race on a vanishing image drops that one row via continue instead of aborting. edge_case: the fast-signature promotion write on the slow-tier hit (line 296) is in-place rather than temp-renamed and sits outside the cache lock - a torn write only fails the next fast cmp and re-enters the slow tier, which recomputes from the authoritative signature file: one redundant rebuild, then self-heals. error_handling is dispositioned by the standing kimi-dogfood suppression (explicit per-call guards instead of set -e aborts). Catalog 1.11.0 re-review: input_domain not applicable, it scans file names and signatures, not file contents. concurrency_scale applied, the rows cache rewrite is shared state across invocations and concurrent opens.
- propertyreviewedatomicitydeterminism
atomicity: the rebuild rewrites rows, signature, and fast-signature under the flock -w 30 cache lock through $$.tmp temp-renames, so a concurrent picker reads the old or the new triple, never a torn mix. determinism: the scan iterates dirs in argument order with find -print0 piped through sort -z, so the signature string and row order are stable functions of directory state.
- structuralnot applicable
Bash over null-delimited find output (find -print0 with IFS= read -r -d %s) preserves filenames containing newlines and tabs through the signature and row build; no eval, arithmetic on sizes, or encoding transforms in the rebuild slice.
- domainnot applicable
Local filesystem reads and XDG cache writes with content-hash keys, plus the image-selector IPC summon; no network egress, secrets, or privilege surface in the signature-and-cache slice this requirement governs.
Change history
Every recorded revision of this requirement's source file — newest first, each with its commit message and the diff for that change.
Review history
Human and AI-agent approvals of this requirement — the 'why was this approved' lineage, each with the reviewer's justification and the code it cites.
- Kimi Zero Warnings · AI agentApprovedSpec conformanceSep 27, 2026 · 5 days agoREVIEW-54
Read omarchy-menu-images. A fast-signature mismatch falls unconditionally into the rebuild branch: full per-file scan, then rewrite of the rows cache plus signatures under the same lock that publishes them. signature_mismatch models the compare-fail arm (43HQ holds the match arm). Formula conforms to the code.
Cited code (1)
Open known issues
Findings currently open against this requirement — issues its verification surfaced that are not resolved yet. Each links to the full finding.
Obligations
What this requirement must witness to be considered satisfied — the required evidence, and the tests that discharge each one.
1 obligation · 1 deferred
Browse the catalogueEvery cross-process call shall declare connect, read, and total deadlines; no external call is defaulted to "no timeout."
The rebuilt rows feed omarchy-shell image-selector open and the script then polls its own done_file (while [[ ! -e $done_file ]]; sleep 0.01) with no deadline and no peer-liveness probe: a selector that dies after a successful summon hangs this script and every synchronous caller. It is the image-selector instance of the KI reproduced done_file poll mechanism, so the bound is tracked with that fix rather than suppressed.
- nominalrequireddeferredWitnessing deferred — accepted while the tracking known issue stays open.
Code signals
Static-analysis signals from external scanners that bear on this requirement's obligations — the source location, the obligation each touches, and its closure status.
- Coveredbuiltinstrict_mode_missingObligation: Error handling · Scenario
Behavior when operations fail or dependencies are unavailable.
script runs pipelines without `set -e`/`set -o pipefail`
Formula evidence
The formal formula behind this requirement, the variables it is written over, and the tests that exercise it (each term is explained inline).
Formula evidence
The formal formula behind this requirement, the variables it is written over, and the tests that exercise it (each term is explained inline).
FRETish formula
when signature_mismatch the image_selector shall eventually satisfy rows_rebuilt_and_cached
Witnesses· 2 scenarios total
- menu-images-test.sh:1exercises 2 condition scenarios
MC/DC truth table· 3 rows
Each row assigns the formula's conditions (T/F) and shows the Result— the formula's value for that input row, not a test pass/fail. A row proves a condition when flipping only that condition flips the outcome. The test that covers each row is linked.
mcdc:ignoreNo-actionfalse-result row satisfied by designUncoveredneeds a covering test| # | rows_rebuilt_and_cached | signature_mismatch | Result | Proves | Covering test |
|---|---|---|---|---|---|
| 1 | F | F | T | signature_mismatch | |
| 2 | F | T | F | rows_rebuilt_and_cached | Exempted · defensive — a full-signature mismatch falls unconditionally into the rebuild branch that rewrites and re-signs the rows; a mismatch without a rebuild needs a broken branch (reviewed: REVIEW-M6) |
| 3 | T | T | T | rows_rebuilt_and_cached |
Its place
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Trace evidence
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Impact
Blast radius — authored trace links only (automatically derived links come from the audit index and aren't shown here).
Impact
Blast radius — authored trace links only (automatically derived links come from the audit index and aren't shown here).
If you change this
Files to re-check (1)
- omarchy-menu-imagesbin/omarchy-menu-images
Tests to re-run (1)
- menu-images-test.shtest/shell.d/menu-images-test.sh
What this rests on
Discussions
Discuss this with the proof team. Nothing changes in your audit automatically — you open a request and a staff member records any outcome inside the thread.