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 skills add imkohenauser/antigravity-starter-ja --skill knowledge-cutoff-awarenessgit clone --depth 1 https://github.com/imkohenauser/antigravity-starter-jaWrote 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/imkohenauser/antigravity-starter-ja/knowledge-cutoff-awareness)<a href="https://agentmods.dev/skills/imkohenauser/antigravity-starter-ja/knowledge-cutoff-awareness"><img src="https://agentmods.dev/badge/skills/imkohenauser/antigravity-starter-ja/knowledge-cutoff-awareness/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/imkohenauser/antigravity-starter-ja/knowledge-cutoff-awareness"><img src="https://agentmods.dev/badge/skills/imkohenauser/antigravity-starter-ja/knowledge-cutoff-awareness.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00054 | $0.00477 |
| Opus 5 | $0.00027 | $0.00238 |
| Sonnet 5 | $0.00011 | $0.00095 |
| Haiku 4.5 | $0.00005 | $0.00048 |
Grade A, and why
knowledge-cutoff-awareness 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 12d 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.
What it actually says
knowledge-cutoff-awareness
This skill allows you to get the current date and time, and perform date calculations.
It uses the system's date command via a wrapper script to provide consistent current time output.
For when to use this skill, when not to use it, agent instructions, examples, and reliability notes, see references/examples.md.
Usage
Get Current Date/Time
To get the current date and time in ISO 8601 format (recommended for machine parsing):
node scripts/get_date.js
# Output: 2026-02-16T16:55:00+09:00
To get a human-readable format:
node scripts/get_date.js --human
# Output: Mon Feb 16 2026 16:55:00 GMT+0900 (JST)
Relative Dates & Calculations
You can easily calculate relative dates using simple arguments. The output will be in ISO 8601 format by default.
-
Get tomorrow:
node scripts/get_date.js +1d -
Get date 2 weeks ago:
node scripts/get_date.js -2w -
Get date 1 month from now:
node scripts/get_date.js +1m -
Get yesterday (keyword):
node scripts/get_date.js yesterday
Supported units: d (days), w (weeks), m (months), y (years).
Help
To see all available options:
node scripts/get_date.js --help
Limitations
- System Time Dependency: This skill relies on the underlying system time. If the system clock is incorrect, the output will be incorrect.
- Timezone: The ISO 8601 output includes the local timezone offset of the machine running the script.
What ships with it
2 files 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.
- 12d ago First seen · 66 lines · 54 tokens per session scan A 571c7934a879
knowledge-cutoff-awareness is a skill published in the GitHub repository imkohenauser/antigravity-starter-ja (11 stars, last pushed 6mo ago), licensed ISC. It adds 54 tokens to every session and 477 once invoked, about $0.0003 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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