Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/chaitanyagiri/munder-difflin/temporalnpx skills add chaitanyagiri/munder-difflin --skill temporalgit clone --depth 1 https://github.com/chaitanyagiri/munder-difflinWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/chaitanyagiri/munder-difflin/temporal)<a href="https://agentmods.dev/skills/chaitanyagiri/munder-difflin/temporal"><img src="https://agentmods.dev/badge/skills/chaitanyagiri/munder-difflin/temporal.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00114 | $0.00849 |
| Opus 5 | $0.00057 | $0.00425 |
| Sonnet 5 | $0.00023 | $0.00170 |
| Haiku 4.5 | $0.00011 | $0.00085 |
Grade A, and why
temporal scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/temporal — concrete date ranges, relative to now
This is the single source of truth for "what dates does mean right
now?". It resolves named windows to concrete ISO date ranges relative to your
run time (new Date() at the moment you invoke it), so you never re-derive
dates manually. It only reads the clock and prints — no files written, no network.
Run it
# all windows at once (a quick temporal-context dump)
node "$AGENT_DIR/.claude/skills/temporal/when.mjs"
# one or several specific windows
node "$AGENT_DIR/.claude/skills/temporal/when.mjs" last30Days thisQuarter
# JSON only (machine-readable), or list the supported keywords
node "$AGENT_DIR/.claude/skills/temporal/when.mjs" --json last7Days
node "$AGENT_DIR/.claude/skills/temporal/when.mjs" --list
If $AGENT_DIR is somehow unset, the script also lives under
~/.claude/skills/temporal/when.mjs.
Windows
| Keyword | Meaning |
|---|---|
today / yesterday |
the single civil day |
thisWeek / lastWeek |
ISO week (Mon-start); this = Mon→today, last = the full prior Mon→Sun |
last7Days / last30Days / last90Days |
rolling N-day window ending today (inclusive) |
thisMonth / lastMonth |
this = 1st→today; last = the full prior calendar month |
thisQuarter / lastQuarter |
this = quarter-start→today; last = the full prior quarter |
thisYear / lastYear |
this = Jan 1→today (YTD); last = the full prior year |
last12Months |
rolling 12 months ending today |
lastNdays / lastNweeks / lastNmonths |
arbitrary rolling window, e.g. last45days, last2weeks, last6months |
Aliases: ytd, qtd, mtd, wtd, 7d, 30d, 90d, 12m.
Convention: this* windows are period-start → today (to-date); last*
named periods are the full prior complete period.
Output
Each window prints a human line plus a JSON record:
start/end— inclusive civil dates (YYYY-MM-DD) in your local timezonestartUtc/endExclusiveUtc— the same span as a half-open[start, end)range of exact UTC instants, ideal for timestamp /createdAt-style queriesdays,inclusive,timezone,tzOffsetMinutes,asOf— span, tz, and the instant the range was resolved
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 4d ago First seen · 69 lines · 114 tokens per session scan A 3e870f0b9fa9
temporal is a skill published in the GitHub repository chaitanyagiri/munder-difflin (6,221 stars, last pushed today), licensed MIT. It adds 114 tokens to every session and 849 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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