ra:cold-email

ra:cold-email is a command for coding agents from xujingchen1996/research-app-toolkit. It costs 13 tokens per session (150 once invoked), scanned A, original, MIT.

A command for writing or improving cold emails sent to professors, with different formats for first contact, follow-ups, thanks, negotiations, reminders, and rejections.

In plain words
What is it for?
Use it to draft a first outreach email, follow up with a professor, thank someone after an interview, negotiate an offer, remind a reference, or respond to a rejection.
Why use it?
It helps match the email to the situation instead of starting from a generic message. It also provides a defined default when no email type is specified.

Command

Part of the research-app-toolkit plugin — 9 skills, 9 commands, 1 agent, 1 hook shipped together

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 commands/xujingchen1996/research-app-toolkit/cold-email
Clone the repo
git clone --depth 1 https://github.com/xujingchen1996/research-app-toolkit

Or install research-app-toolkit, the plugin that ships this one along with the rest of its 9 skills, 9 commands, 1 agent, 1 hook.

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 ra:cold-email

README.md
[![agentmods](https://agentmods.dev/badge/commands/xujingchen1996/research-app-toolkit/cold-email.svg)](https://agentmods.dev/commands/xujingchen1996/research-app-toolkit/cold-email)
Your own site
<a href="https://agentmods.dev/commands/xujingchen1996/research-app-toolkit/cold-email"><img src="https://agentmods.dev/badge/commands/xujingchen1996/research-app-toolkit/cold-email.svg" alt="Measured on agentmods" height="20"></a>
Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 150 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 $0.00013 $0.00150
Opus 5 $0.00006 $0.00075
Sonnet 5 $0.00003 $0.00030
Haiku 4.5 $0.00001 $0.00015

Measured 5d ago against content hash 64a2f26a7afb, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ra:cold-email 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 5d 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.

commands/cold-email.md · 22 lines

What it actually says

Cold Email Command

Parse the email type from $ARGUMENTS. Supported types: first-contact, follow-up, interview-thanks, offer-negotiation, reference-remind, rejection-follow. Default to first-contact if not specified.

Follow the cold-email skill for full generation process.

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. 5d ago First seen · 22 lines · 13 tokens per session scan A 64a2f26a7afb

Subscribe to this mod's changes

ra:cold-email is a command published in the GitHub repository xujingchen1996/research-app-toolkit (113 stars, last pushed 1mo ago), licensed MIT. It adds 13 tokens to every session and 150 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.