timestamps

timestamps is a skill for Claude Code from AraneaDev/claude-timestamp. It costs 39 tokens per session (407 once invoked), scanned A, original, MIT.

A configuration tool for claude-timestamp, which adds time information to coding-agent messages and tool activity. It uses the repository's command-line setup and schema to validate settings such as timezone, format, colour, and timing markers.

In plain words
What is it for?
Use it when changing timezone or clock format, marker appearance, elapsed-time display, tool timing, summaries, history, or model-facing time notes.
Why use it?
It provides a controlled way to change how times are shown without accepting unsupported settings. Reading the schema first helps avoid silently misconfiguring the timestamp hooks.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions Claude Code; mentions Codex.

Part of the claude-timestamp plugin — 2 skills, 1 command, 8 hooks shipped together

Good fit Use it when changing timezone or clock format, marker appearance, elapsed-time display, tool timing, summaries, history, or model-facing time notes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/araneadev/claude-timestamp/timestamps
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 AraneaDev/claude-timestamp --skill timestamps
Clone the repo
git clone --depth 1 https://github.com/AraneaDev/claude-timestamp

Made for: Claude Code.

Or install claude-timestamp, the plugin that ships this one along with the rest of its 2 skills, 1 command, 8 hooks.

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 timestamps

README.md
[![agentmods](https://agentmods.dev/badge/skills/araneadev/claude-timestamp/timestamps/github.svg)](https://agentmods.dev/skills/araneadev/claude-timestamp/timestamps)
Your own site
<a href="https://agentmods.dev/skills/araneadev/claude-timestamp/timestamps"><img src="https://agentmods.dev/badge/skills/araneadev/claude-timestamp/timestamps/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 timestamps

Your own site · 80×15
<a href="https://agentmods.dev/skills/araneadev/claude-timestamp/timestamps"><img src="https://agentmods.dev/badge/skills/araneadev/claude-timestamp/timestamps.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 407 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 original 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 $0.00039 $0.00407
Opus 5.5 $0.00016 $0.00163
Sonnet 5.5 $0.00008 $0.00081
Haiku 4.5 $0.00004 $0.00041

Measured 6d ago against content hash 0bd3a060bf1b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

timestamps 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 6d 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/timestamps/SKILL.md · 41 lines

What it actually says

Configure claude-timestamp

Use the repository's CLI so configuration is parsed and validated by the same code used by the hooks. Run commands from the Git root, or resolve the root with git rev-parse --show-toplevel.

Read schema.json first when the user asks for a setting you do not recognize. It is the source of truth for keys, accepted values, aliases, presets, and marker grammar. Do not silently invent or accept a value the schema rejects.

Show current settings with:

bash "$(git rev-parse --show-toplevel)/hooks/scripts/setup.sh" --show

Use the matching CLI flag for a requested change, for example:

bash "$(git rev-parse --show-toplevel)/hooks/scripts/setup.sh" --tz=Europe/Amsterdam
bash "$(git rev-parse --show-toplevel)/hooks/scripts/setup.sh" --display=short
bash "$(git rev-parse --show-toplevel)/hooks/scripts/setup.sh" --color=none
bash "$(git rev-parse --show-toplevel)/hooks/scripts/setup.sh" --tool-timing=on

Use --help and the flag table in hooks/scripts/setup.sh for the complete mapping. For several changes, pass several flags in one invocation. Report what changed and say that it takes effect on the next message.

For measured reports, use --session or --stats; do not estimate duration from the conversation. History stores timings only, never message text.

Codex receives model-facing timing context and the end-of-session summary from its hooks. It has no Claude-style MessageDisplay event, so the visual marker is available in Claude Code but not in Codex.

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. 6d ago Changed 0bd3a060bf1b
  2. 1mo ago First seen · 41 lines · 39 tokens per session scan A 85aa484d2448

Subscribe to this mod's changes

timestamps is a skill published in the GitHub repository AraneaDev/claude-timestamp (3 stars, last pushed 6d ago), licensed MIT. It adds 39 tokens to every session and 407 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-09-16.