Official agent skill

Write Timestamp

by langchain-ai in langchain-ai/docs

A skill your agent uses when the user wants the current date and time written to a file via the bundled script inside the sandbox.

OfficialMITAuto-check passedAI & LLM Engineering

Install Write Timestamp

skills CLI
$ npx skills add langchain-ai/docs --skill write-timestamp -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install langchain-ai/docs write-timestamp --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/langchain-ai/docs.git skills-src && mkdir -p .claude/skills && cp -r skills-src/src/code-samples/deepagents/skills/write-timestamp .claude/skills/write-timestamp && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
write-timestamp
GitHub stars
425
Token cost
~121 tokens
SKILL.md length
38 words
Files
2
Skills in repo
17
Repo updated
First seen
Licence
MIT

At a glance

A skill your agent uses when the user wants the current date and time written to a file via the bundled script inside the sandbox.

  • Works in 3 steps: The script is available in the sandbox… → Run it with the execute tool, for… → Read /tmp/skill_timestamp.txt with…
  • The user wants the current date and time written to a file via the bundled script inside the sandbox
  • Runs Python scripts from its folder; calls python

What it does

Write Timestamp is an agent skill from langchain-ai/docs, published by the product's own GitHub organization. Use when the user wants the current date and time written to a file via the bundled script inside the sandbox.

Its SKILL.md is about 120 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `write_timestamp.py`).

It sits in AI & LLM Engineering. The repository describes itself as: Unified LangChain documentation. The licence is MIT.

When your agent uses it

  • The user wants the current date and time written to a file via the bundled script inside the sandbox

Example prompts

  • “/write-timestamp”

Requirements

  • Python 3

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

  1. The script is available in the sandbox at /skills/write-timestamp/write_timestamp.py after sync.
  2. Run it with the execute tool, for example: python /skills/write-timestamp/write_timestamp.py
  3. Read /tmp/skill_timestamp.txt with read_file and summarize the result for the user.

What it can do on your machine

Read from SKILL.md and the folder at commit dcfc8b4. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships script files (Python), which the agent can run.

    Shell commands in SKILL.md call:

    • python

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Write Timestamp loads about 121 tokens when it runs. Until then it costs about 32 tokens; SKILL.md has 38 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~32
When it runs · the whole SKILL.md, loaded when a task matches
~121

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from langchain-ai/docs at commit dcfc8b4, republished under its MIT licence (© langchain-ai). 38 words, ~121 tokens.

Download SKILL.mdSave it as .claude/skills/write-timestamp/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
write-timestamp
description
Use when the user wants the current date and time written to a file via the bundled script inside the sandbox.

Write timestamp

Instructions

  1. The script is available in the sandbox at /skills/write-timestamp/write_timestamp.py after sync.
  2. Run it with the execute tool, for example: python /skills/write-timestamp/write_timestamp.py
  3. Read /tmp/skill_timestamp.txt with read_file and summarize the result for the user.

© langchain-ai, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in src/code-samples/deepagents/skills/write-timestamp of langchain-ai/docs.

  • SKILL.md
  • write_timestamp.py

Open the folder on GitHubat commit dcfc8b4

Compare with similar skills

Write Timestamp next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Write Timestamp compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Write Timestamp this skilllangchain-ai/docs425—~121Automated safety check: PassMIT
Agent BuildershareAI-lab/learn-claude-code78k6 repos~1.2kAutomated safety check: PassMIT
Add Uint Supportpytorch/pytorch104k2 repos~2.3kAutomated safety check: PassCustom licence
Peft Fine TuningOrchestra-Research/AI-Research-SKILLs13k9 repos~3.1kAutomated safety check: PassMIT
Segment Anything Model GuideOrchestra-Research/AI-Research-SKILLs13k9 repos~3.3kAutomated safety check: PassMIT
1passwordtrpc-group/trpc-agent-go1.8k15 repos~656Automated safety check: PassApache-2.0

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Questions about Write Timestamp

What does Write Timestamp do?

A skill your agent uses when the user wants the current date and time written to a file via the bundled script inside the sandbox. Write Timestamp is an agent skill from langchain-ai/docs, published by the product's own GitHub organization. Use when the user wants the current date and time written to a file via the bundled script inside the sandbox.

When should I use Write Timestamp?

Write Timestamp fits situations like: the user wants the current date and time written to a file via the bundled script inside the sandbox.

How do I install Write Timestamp in Claude Code?

Run `npx skills add langchain-ai/docs --skill write-timestamp -a claude-code`. Or copy the skill folder (src/code-samples/deepagents/skills/write-timestamp in langchain-ai/docs) into .claude/skills/write-timestamp in your project. Claude Code loads it when a task matches its description.

How do I install Write Timestamp in Codex?

Run `npx skills add langchain-ai/docs --skill write-timestamp -a codex`. Or copy the skill folder (src/code-samples/deepagents/skills/write-timestamp in langchain-ai/docs) into .agents/skills/write-timestamp in your project. Codex loads it when a task matches its description.

Can I use Write Timestamp in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add langchain-ai/docs --skill write-timestamp -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/write-timestamp, .gemini/skills/write-timestamp, .github/skills/write-timestamp and .opencode/skills/write-timestamp in your project.

What does Write Timestamp need to run?

Going by SKILL.md and its folder, Write Timestamp needs Python for the scripts in its folder and the command-line tools its instructions call (python). Our summary lists: Python 3.

Does Write Timestamp access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Write Timestamp safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Write Timestamp use?

Write Timestamp is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Write Timestamp use?

About 121 tokens (SKILL.md is roughly 484 characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Write Timestamp?

Skills that share tags, products or a category with Write Timestamp: Agent Builder (shareAI-lab/learn-claude-code, 78k stars), Add Uint Support (pytorch/pytorch, 104k stars), Peft Fine Tuning (Orchestra-Research/AI-Research-SKILLs, 13k stars) and Segment Anything Model Guide (Orchestra-Research/AI-Research-SKILLs, 13k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Write Timestamp?

langchain-ai (a GitHub organization, an official publisher) maintains it in langchain-ai/docs, which has 425 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on October 8, 2026.

Source: langchain-ai/docs on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.