email-find

email-find is a skill for Claude Code from sonichi/sutando. It costs 29 tokens per session (1,800 once invoked), scanned A, original, MIT.

A method for finding a specific message in Gmail when normal searches return nothing. It uses broader searches, related sender domains, and full thread retrieval.

In plain words
What is it for?
Use it when you believe an email exists but targeted Gmail searches cannot find it, especially when the message may belong to a differently titled thread or associated sender.
Why use it?
It reduces false failures caused by searching only the subject, one keyword, or the named sender.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

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.

agentmods
npx agentmods add skills/sonichi/sutando/email-find
Any agent
npx skills add sonichi/sutando --skill email-find
Clone the repo
git clone --depth 1 https://github.com/sonichi/sutando

Made for: Claude Code.

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 email-find

README.md
[![agentmods](https://agentmods.dev/badge/skills/sonichi/sutando/email-find.svg)](https://agentmods.dev/skills/sonichi/sutando/email-find)
Your own site
<a href="https://agentmods.dev/skills/sonichi/sutando/email-find"><img src="https://agentmods.dev/badge/skills/sonichi/sutando/email-find.svg" alt="Measured on agentmods" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,800 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00029 $0.01800
Opus 5 $0.00015 $0.00900
Sonnet 5 $0.00006 $0.00360
Haiku 4.5 $0.00003 $0.00180

Measured 6d ago against content hash 4f8c75bb28b7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

email-find 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/email-find/SKILL.md · 136 lines

How it starts

The opening of the file, as written. The whole thing — 136 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Email Find

A playbook for finding a specific email through the Gmail MCP (claude.ai Gmail) when the obvious search query returns nothing. Optimized for the case where the user describes an email and the agent must not give up easily.

Usage: /email-find <description>

ARGUMENTS: $ARGUMENTS

Behavioral rules

  1. If the user is confident an email exists, the email exists. Do not respond with "I can't find it" after one or two failed queries. The default failure mode is the agent's query, not the user's memory.

  2. Broad before narrow. Always run at least one query that scans the full inbox by recency before narrowing on subject or sender keywords. A reply about Topic-X can land on a thread whose subject names a different topic, with zero topic-X tokens in the subject — a keyword filter throws those threads away.

  3. Expand sender to partners, not just the named entity. When the user mentions a customer / vendor / collaborator by name, also search for known associated email domains. Operational replies often come from data-ops partners, contractors, or assistants — not the named principal contact.

  4. Re-fetch threads in full. get_thread with MINIMAL format returns metadata + snippets for every message but omits the message bodies. If you've identified the candidate thread and need to read what was actually written, fetch it again with FULL_CONTENT. The search-result preview in the UI may also truncate long threads; FULL_CONTENT exposes everything.

  5. Show the search trail. End every "found it" or "still hunting" reply with the list of queries you tried, so the user can see what worked and what didn't.

Workflow

In the queries below, me is Gmail's reserved keyword for the authenticated user's primary address — works for everyone regardless of which account is connected.

Phase 1 — Broad scan

Run one broad query first to anchor on what's actually in the inbox in the relevant time window:

search_threads query="(to:me OR from:me) newer_than:Nd" pageSize=15

Read the full file on GitHub · 136 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 First seen · 136 lines · 29 tokens per session scan A 4f8c75bb28b7

Subscribe to this mod's changes

email-find is a skill published in the GitHub repository sonichi/sutando (391 stars, last pushed today), licensed MIT. It adds 29 tokens to every session and 1,800 once invoked, about $0.0001 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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