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Get Started Free →Resolve "lastWeek" to a concrete ISO date range relative to your run time — the previous full week (Mon → Sun). Returns inclusive civil dates plus exact UTC instants so you have temporal context without computing dates by hand. Read-only: no writes, no network. Use before a task over the last complete week (weekly digests, week-over-week).
.claude/skills/chaitanyagiri-lastweek/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-05 | ✗→✓ | ▲ Improved | -74% | 0% |
| case-06 | ✗→✓ | ▲ Improved | 3% | 0% |
| case-09 | ✗→✓ | ▲ Improved | -60% | 0% |
| case-12 | ✗→✓ | ▲ Improved | -49% | 0% |
| case-15 | ✗→✓ | ▲ Improved | -57% | 0% |
Get the concrete date range for the previous full week (Mon → Sun) by running the bundled resolver:
bashnode "$AGENT_DIR/.claude/skills/temporal/when.mjs" lastWeek
It prints a human-readable line plus a JSON record:
start / end — inclusive civil dates (YYYY-MM-DD) in your local timezonestartUtc / endExclusiveUtc — the same window as a half-open [start, end)range of exact UTC instants, for timestamp-based queries
days, timezone, asOf — the span, your timezone, and when this resolvedUse the returned dates as the time bounds for the task at hand. Do not derive dates by hand — this resolver is the source of truth. For the full window list or an arbitrary range (e.g. last45days, last6months), see the /temporal skill.
Other measured skills in the registry, with their headline benchmark lift.