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Agent skill

Inbox Triage

by nano-muse in nano-muse/nanoMuse

Go through recent mail and sort it into needs-a-reply, waiting-on-others, to-do and can-ignore, with draft replies ready for review.

GPL-3.0Auto-check passedProductivity & Automation

Install Inbox Triage

skills CLI
$ npx skills add nano-muse/nanoMuse --skill inbox-triage -a claude-code

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

GitHub CLI
$ gh skill install nano-muse/nanoMuse inbox-triage --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/nano-muse/nanoMuse.git skills-src && mkdir -p .claude/skills && cp -r skills-src/nanomuse/skills/builtin/inbox-triage .claude/skills/inbox-triage && 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
inbox-triage
GitHub stars
813
Token cost
~597 tokens
SKILL.md length
346 words
Files
1
Skills in repo
11
Repo updated
First seen
Licence
GPL-3.0

At a glance

Go through recent mail and sort it into needs-a-reply, waiting-on-others, to-do and can-ignore, with draft replies ready for review.

  • Works in 5 steps: Reply needed: someone asked the user… → Waiting on them: the user asked, no… → To do: no reply needed, but an action… → …
  • The user asks to triage
  • SKILL.md covers Read, Sort, Draft, do not send and Report
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Inbox Triage is an agent skill from nano-muse/nanoMuse. Go through recent mail and sort it into needs-a-reply, waiting-on-others, to-do and can-ignore, with draft replies ready for review. Use when the user asks to triage, sort, catch up on or clear their inbox; never to send anything on its own.

Its SKILL.md is about 600 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Productivity & Automation, covering Email management. The repository describes itself as: nanoMuse: an open-source personal agent for every device you own. One agent with a name and a look of its own that does things, keeps working while the app is closed, remembers… The licence is GPL-3.0.

When your agent uses it

  • The user asks to triage
  • Clear their inbox
  • Never to send anything on its own

Example prompts

  • “/inbox-triage”

Workflow steps

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

  1. Reply needed: someone asked the user something, or is waiting.
  2. Waiting on them: the user asked, no answer yet; note how long.
  3. To do: no reply needed, but an action is: pay, book, read a document, show up somewhere.
  4. Read later: newsletters, notifications, receipts.
  5. Ignore: clear spam, expired offers, automated noise.

What it can do on your machine

Read from SKILL.md and the folder at commit 5379e97. 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

    No scripts in the folder and no shell commands in SKILL.md.

    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

Inbox Triage loads about 597 tokens when it runs. Until then it costs about 64 tokens; SKILL.md has 346 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~64
When it runs · the whole SKILL.md, loaded when a task matches
~597

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 nano-muse/nanoMuse at commit 5379e97, republished under its GPL-3.0 licence (© nano-muse). 346 words, ~597 tokens.

Download SKILL.mdSave it as .claude/skills/inbox-triage/SKILL.md (or your agent's skills folder).
name
inbox-triage
description
Go through recent mail and sort it into needs-a-reply, waiting-on-others, to-do and can-ignore, with draft replies ready for review. Use when the user asks to triage, sort, catch up on or clear their inbox; never to send anything on its own.
channel
api
metadata.author
nanoMuse
metadata.version
1

Inbox triage

Needs the mail connector (read_emails). If it is not available, say so and stop.

Read

  • read_emails with unread_only=true first (up to 50). If there are fewer than 10, read the last 3 days with unread_only=false too, so nothing waiting since yesterday is missed.
  • For each sender the user has written to before, contacts action=search gives the name and company; use names, not addresses, in what you write.
  • recall "inbox" and "email" for the user's rules: senders that always matter, newsletters they keep, how they like replies to sound.

Sort

Every message lands in exactly one group:

  1. Reply needed: someone asked the user something, or is waiting.
  2. Waiting on them: the user asked, no answer yet; note how long.
  3. To do: no reply needed, but an action is: pay, book, read a document, show up somewhere.
  4. Read later: newsletters, notifications, receipts.
  5. Ignore: clear spam, expired offers, automated noise.

Threads with the same subject count once. Anything that mentions money, a deadline, a contract or health goes to the top of its group.

Draft, do not send

  • For each Reply needed mail, write a reply the user could send as is: their voice (from memory), short, answering the actual question. Put all drafts in one file, mail/drafts-YYYY-MM-DD.md, one section per thread with To, Subject, the draft, and a one-line note on what you were unsure about.
  • Do not call send_email in this job unless the user tells you, mail by mail, to send. A reply the user approves later is a separate step.

Report

In chat, a short list per group: sender name, subject, what it is about in a few words (groups 4 and 5 as counts only). Then the file with the drafts, and the two or three things that should not wait. Deadlines or events found in the mail: offer to set a reminders or draft a calendar event; do it only when the user says yes.

If the user corrects a sorting decision ("newsletters from X I read"), remember it so the next triage gets it right.

© nano-muse, GPL-3.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in nanomuse/skills/builtin/inbox-triage of nano-muse/nanoMuse.

Open the folder on GitHubat commit 5379e97

Compare with similar skills

Inbox Triage 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.

Inbox Triage compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Inbox Triage this skillnano-muse/nanoMuse813—~597Automated safety check: PassGPL-3.0
Garden Inboxpaperclipai/paperclip100k—~1.1kAutomated safety check: PassMIT
Continuetelegramdesktop/tdesktop33k2 repos~9.4kAutomated safety check: PassGPL-3.0
Process Inboxtelegramdesktop/tdesktop33k1 repos~5.4kAutomated safety check: PassGPL-3.0
Process InboxTDesktop-x64/tdesktop3k—~4.3kAutomated safety check: PassGPL-3.0
Career-Ops Gmail Lead Plugincareer-ops-hq/career-ops74k—~233Automated safety check: NotesMIT

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Categories

Questions about Inbox Triage

What does Inbox Triage do?

Go through recent mail and sort it into needs-a-reply, waiting-on-others, to-do and can-ignore, with draft replies ready for review. Inbox Triage is an agent skill from nano-muse/nanoMuse. Go through recent mail and sort it into needs-a-reply, waiting-on-others, to-do and can-ignore, with draft replies ready for review.

When should I use Inbox Triage?

Inbox Triage fits situations like: the user asks to triage; clear their inbox; never to send anything on its own.

How do I install Inbox Triage in Claude Code?

Run `npx skills add nano-muse/nanoMuse --skill inbox-triage -a claude-code`. Or copy the skill folder (nanomuse/skills/builtin/inbox-triage in nano-muse/nanoMuse) into .claude/skills/inbox-triage in your project. Claude Code loads it when a task matches its description.

How do I install Inbox Triage in Codex?

Run `npx skills add nano-muse/nanoMuse --skill inbox-triage -a codex`. Or copy the skill folder (nanomuse/skills/builtin/inbox-triage in nano-muse/nanoMuse) into .agents/skills/inbox-triage in your project. Codex loads it when a task matches its description.

Can I use Inbox Triage 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 nano-muse/nanoMuse --skill inbox-triage -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/inbox-triage, .gemini/skills/inbox-triage, .github/skills/inbox-triage and .opencode/skills/inbox-triage in your project.

What does Inbox Triage need to run?

SKILL.md names no scripts, command-line tools or credentials: Inbox Triage is instructions for the agent only.

Does Inbox Triage 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 Inbox Triage 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 Inbox Triage use?

Inbox Triage is published under the GPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Inbox Triage use?

About 597 tokens (SKILL.md is roughly 2.4k 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 Inbox Triage?

Skills that share tags, products or a category with Inbox Triage: Garden Inbox (paperclipai/paperclip, 100k stars), Continue (telegramdesktop/tdesktop, 33k stars), Process Inbox (telegramdesktop/tdesktop, 33k stars) and Process Inbox (TDesktop-x64/tdesktop, 3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Inbox Triage?

nano-muse (a GitHub organization) maintains it in nano-muse/nanoMuse, which has 813 GitHub stars. The repository holds 11 skills in this directory. The repository was last updated on October 11, 2026.

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