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/afterrealm/father-time/activity-patternsnpx skills add AfterRealm/father-time --skill activity-patternsgit clone --depth 1 https://github.com/AfterRealm/father-timeWrote 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/afterrealm/father-time/activity-patterns)<a href="https://agentmods.dev/skills/afterrealm/father-time/activity-patterns"><img src="https://agentmods.dev/badge/skills/afterrealm/father-time/activity-patterns.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 | $0.00070 | $0.00591 |
| Opus 5 | $0.00035 | $0.00296 |
| Sonnet 5 | $0.00014 | $0.00118 |
| Haiku 4.5 | $0.00007 | $0.00059 |
Grade A, and why
activity-patterns 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 — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Activity Patterns
Analyze the user's Claude Code usage patterns over time to provide personalized scheduling insights.
Data Source
Read ${CLAUDE_PLUGIN_DATA}/activity_patterns.json — an array of session start records:
[
{"date": "2026-03-26", "time": "22:15", "weekday": "Wednesday", "hour": 22},
{"date": "2026-03-27", "time": "08:10", "weekday": "Thursday", "hour": 8}
]
The SessionStart hook appends an entry each time a new session begins. Max 200 entries retained.
Analysis to Perform
Time Distribution
- Count sessions by hour of day (0-23)
- Find the peak activity hours
- Identify dead hours (when they never work)
Day Distribution
- Sessions per weekday
- Weekday vs weekend ratio
- Most active day of the week
Pattern Classification
Based on the data, classify the user:
| Pattern | Criteria |
|---|---|
| Night Owl | >50% of sessions between 8pm-4am |
| Early Bird | >50% of sessions between 5am-10am |
| Business Hours | >50% of sessions between 9am-5pm |
| All-Hours | No dominant time block |
| Weekend Warrior | >30% of sessions on weekends |
Peak Hour Overlap
- What percentage of their sessions fall during peak hours?
- Are they naturally avoiding peak, or hitting it head-on?
- Personalized recommendation based on their actual pattern
Response Format
Activity Profile: [N] sessions analyzed over [date range]
Schedule: [Night Owl / Early Bird / Business Hours / All-Hours]
Most active: [day of week] at [hour range]
Least active: [day/hour]
Peak hour overlap: [X]% of your sessions hit peak hours
[Insight]: [Personalized observation, e.g., "You naturally work off-peak —
your night schedule dodges throttling completely."]
[Recommendation]: [Actionable advice based on pattern]
Privacy Note
Activity patterns are stored locally in ${CLAUDE_PLUGIN_DATA}. Nothing is sent anywhere. The data stays on the user's machine and is only used to provide personalized scheduling insights.
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 · 75 lines · 70 tokens per session scan A 492754c59851
activity-patterns is a skill published in the GitHub repository AfterRealm/father-time (6 stars, last pushed 4mo ago), licensed MIT. It adds 70 tokens to every session and 591 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 2026-08-31.
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