Release v0.74.0 — Zero Ambiguity · supernovae-st/nika

🦋 Nika v0.74.0

Semantic YAML Workflow Engine for AI — Schema nika/workflow@0.12

schedule: wired into AST pipeline — nika check now validates schedule expressions (cron, timezone, overlap). Invalid schedules produce NIKA-144 errors at analysis time.
Overlap policies queue and replace — overlap: queue allows concurrent runs. overlap: replace cancels the active job before firing. Previously only skip was functional.
Serve reconciliation — nika serve now upserts YAML-declared schedules into DB at startup + every 60s. 5 reconciliation rules: insert new, update changed cron, delete orphaned yaml-source, keep cli-source, sync paused state.
update_schedule_cron() storage method — Targeted cron/paused/next_run_at UPDATE preserving run history.
Run frequency estimation — runs_per_day() and format_run_estimate() show runs/day and runs/month in schedule card, list, and creation celebration.
History dots (✓✗) — nika schedule list and nika schedule show display colored run history dots with pass/fail summary.
24h timeline view — nika schedule list --timeline renders ASCII grid showing when schedules fire, with overlap warnings.
Did-you-mean for schedule names — Levenshtein-based fuzzy matching on NIKA-283 not-found errors suggests closest schedule name.
Enhanced micro-copy — "back in action!" on resume, "Historical runs preserved" on remove, resume/pause hints.

stdin pipe never written — Scheduled jobs with inputs_json hung for 1h timeout. Now writes args to stdin before handing child to monitor task.
Timezone ignored in next_run_at — Schedule creation and fire recomputation always used UTC. Now applies sched.timezone via chrono_tz when computing next occurrence.
list_jobs_for_workflow LIMIT 10 — Overlap detection missed active jobs when workflow had 10+ historical runs. Raised to LIMIT 100.
TOCTOU double-fire guard — update_schedule_after_fire now uses WHERE last_run_at < ?1 to prevent concurrent ticks from double-firing.
inputs_json forwarded to submit() — Scheduled workflows now receive their configured inputs (was always None).
Reconciler name collision — a/b.nika.yaml vs a-b.nika.yaml no longer collide. Uses :: separator.
Reconciler paused source — Uses config.paused from parser instead of raw header text scan (prevented false positives from comments).

Protocol roundtrip tests for 9 schedule variants (6 request + 3 response).
Boundary tests: duration_to_cron (0h/24h/0m/60m/0d/29d), parse_hhmm, humanize_relative.
E2E AST pipeline tests: valid cron, invalid cron, object form, unknown key regression.
Storage update_schedule_cron test preserving run history.
Overlap:replace integration test with cancel verification.
Levenshtein + find_closest tests.
Timeline slot tests (daily, hourly, every-2h, weekday, invalid, multiple-per-hour).

	Method	Command
🚀	Quick	`curl -fsSL https://raw.githubusercontent.com/supernovae-st/nika/main/install.sh \| sh`
🍺	Homebrew	`brew install supernovae-st/tap/nika`
📦	npm	`npx @supernovae-st/nika`
🦀	Cargo	`cargo install nika`
🐳	Docker	`docker run --rm ghcr.io/supernovae-st/nika:0.74.0`
💻	VS Code	Search "Nika" or `ext install supernovae.nika-lang`
🪟	Scoop	`scoop bucket add nika https://github.com/supernovae-st/scoop-nika && scoop install nika`
🐧	AUR	`yay -S nika-bin`

Platform	Architecture	File	Size
🍎 macOS	Apple Silicon	`nika-macos-arm64-0.74.0.tar.gz`	44M
🍎 macOS	Intel	`nika-macos-x64-0.74.0.tar.gz`	48M
🐧 Linux	x64	`nika-linux-x64-0.74.0.tar.gz`	48M
🐧 Linux	ARM64	`nika-linux-arm64-0.74.0.tar.gz`	34M
🪟 Windows	x64	`nika-windows-x64-0.74.0.zip`

🔐 All binaries include SHA256 checksums, SLSA provenance, and macOS notarization.

	Metric	Value
🦀	Crates	19 workspace crates
🧪	Tests	10379+ passing
📦	npm	6 platform packages
🔐	macOS	Signed + Notarized (Developer ID)
🛡️	SLSA	Build provenance attested
🐳	Docker	Multi-arch amd64/arm64 + SBOM

Made with 💜 by SuperNovae Studio — Open Source, AGPL-3.0

Full Changelog: v0.0.0...v0.74.0