bucket-local-time-in-code-not-in-sql

bucket-local-time-in-code-not-in-sql is a skill for Claude Code from maxrave-dev/kotlin-footguns. It costs 135 tokens per session (1,597 once invoked), scanned A, original, GPL-3.0.

A guidance skill for grouping events by the user's local hour or day in application code from one raw database scan. It addresses cases where the database process time zone differs from the user's time zone.

In plain words
What is it for?
Use it when building hourly or daily event summaries that must reflect each user's local time.
Why use it?
It avoids incorrect local-time results and prevents several separate aggregate queries from scanning data independently and disagreeing.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the kotlin-footguns plugin — 148 skills shipped together

Good fit Use it when building hourly or daily event summaries that must reflect each user's local time.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/maxrave-dev/kotlin-footguns/bucket-local-time-in-code-not-in-sql
Install

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.

Any agent
npx skills add maxrave-dev/kotlin-footguns --skill bucket-local-time-in-code-not-in-sql
Clone the repo
git clone --depth 1 https://github.com/maxrave-dev/kotlin-footguns

Made for: Claude Code.

Or install kotlin-footguns, the plugin that ships this one along with the rest of its 148 skills.

Wrote 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.

agentmods badge for bucket-local-time-in-code-not-in-sql

README.md
[![agentmods](https://agentmods.dev/badge/skills/maxrave-dev/kotlin-footguns/bucket-local-time-in-code-not-in-sql/github.svg)](https://agentmods.dev/skills/maxrave-dev/kotlin-footguns/bucket-local-time-in-code-not-in-sql)
Your own site
<a href="https://agentmods.dev/skills/maxrave-dev/kotlin-footguns/bucket-local-time-in-code-not-in-sql"><img src="https://agentmods.dev/badge/skills/maxrave-dev/kotlin-footguns/bucket-local-time-in-code-not-in-sql/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.

agentmods 80×15 button for bucket-local-time-in-code-not-in-sql

Your own site · 80×15
<a href="https://agentmods.dev/skills/maxrave-dev/kotlin-footguns/bucket-local-time-in-code-not-in-sql"><img src="https://agentmods.dev/badge/skills/maxrave-dev/kotlin-footguns/bucket-local-time-in-code-not-in-sql.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 135 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,597 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00135 $0.01597
Opus 5 $0.00068 $0.00798
Sonnet 5 $0.00027 $0.00319
Haiku 4.5 $0.00014 $0.00160

Measured 11d ago against content hash 07fc8602604e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

bucket-local-time-in-code-not-in-sql 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 11d 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.

skills/bucket-local-time-in-code-not-in-sql/SKILL.md · 112 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Changes

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.

  1. 11d ago First seen · 112 lines · 135 tokens per session scan A 07fc8602604e

Subscribe to this mod's changes

bucket-local-time-in-code-not-in-sql is a skill published in the GitHub repository maxrave-dev/kotlin-footguns (225 stars, last pushed 12d ago), licensed GPL-3.0. It adds 135 tokens to every session and 1,597 once invoked, about $0.0007 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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