What it is
Anthropic, the company behind Claude, open-sourced a set of 11 free plugins for Claude in a public GitHub repo called knowledge-work-plugins (Apache-2.0 license, more than 33,000 stars as of Oct 31, 2026). One of them is Sales. In Anthropic's words, it helps you "research prospects, prep for calls, review your pipeline, draft outreach, and build competitive battlecards."
It works on its own using web search and what you tell it. If you connect tools like your CRM, email or calendar, it can use those too, but you don't need them to start.
What you need
- A paid Claude plan
- Either Claude's Cowork (in the Claude desktop app) or Claude Code
- 2 minutes, and one sentence about your best customer
Setup option A: Cowork (no code)
- Open the Claude desktop app and switch to Cowork.
- Go to claude.com/plugins, which is where Anthropic says to install these plugins from.
- Find Sales and install it.
- Start a new Cowork task and type: "Research [a company you know] as a sales prospect." If you get a company overview, recent news and likely priorities back, it's working.
Setup option B: Claude Code (one command each)
- Open your terminal with Claude Code installed.
- Add Anthropic's plugin marketplace (copy box below, line 1).
- Install the Sales plugin (line 2).
- Start Claude Code. The plugin turns on by itself. Its skills run when your request matches, or you can call them by name, like /sales:call-prep.
claude plugin marketplace add anthropics/knowledge-work-plugins claude plugin install sales@knowledge-work-plugins
Before anything: tell it who your best customer is
This is the step most people skip, and the reel says it plainly: it won't work unless you tell it who your best customer is. The plugin scores prospects against your ideal customer. If it doesn't know who that is, every company looks like a fit. Paste this once at the start of each session (or save it in your project instructions).
We use the same idea on client campaigns: a couple of real, specific details per company instead of a hundred generic emails. Emails that fit the reader are how our agency client below kept getting about 100 interested replies a week for four and a half months, at a 3.19% reply rate. The research is the easy part. The list, the inboxes and the follow-ups are what we run for clients.
Want us to set this up for you? Book a free call →Before we start, here is who we sell to. Use this for every research, call prep and outreach task. What we sell: [one sentence] Our best customer: [industry], [company size, e.g. 20-200 employees], [location] The person who buys: [job title] The problem we solve for them: [one sentence] Our best result so far: [a real result with a number, only if true] Not a fit: [who we don't want, e.g. companies under 10 people] If you're missing something you need, ask me once instead of guessing.
Prompt 1: Prospect research (two real details)
Don't ask it to write a hundred emails. Ask it for two real details about one company. In Hunter's study of 31 million cold emails, emails with 2 custom details got a 5.6% reply rate, versus 3.6% with none. Two true, specific details beat ten generic ones.
/sales:account-research Research [company name] ([website]) as a prospect. Contact: [name, job title] if known. Give me: 1. A 3-line company overview. 2. Fit against our best customer: good / maybe / no, and why. 3. Exactly TWO real, specific details I could mention in a cold email (a recent hire, launch, expansion, job post, review, quote). For each, give the source link and the date. 4. The one problem they most likely have that we solve. Only use facts you can link to. If you can't find two real details, say so. Don't guess.
Prompt 2: One-page call prep
Before every call, have it write a one-page brief. Five minutes of reading beats twenty minutes of clicking around their website.
/sales:call-prep I have a call with [name, job title] at [company] on [date]. It's a [first discovery call / follow-up / demo]. How they found us: [cold email reply / form / referral]. What they said: [paste their reply]. Write a one-page brief: 1. Who they are and what the company does (3 lines). 2. Anything new at the company in the last 90 days, with links. 3. Their likely top 2 problems, tied to what we sell. 4. 5 discovery questions, simplest first. 5. 2 objections they might raise and a one-line answer to each. 6. The one next step I should ask for at the end. Keep it to one page.
Prompt 3: First-draft outreach
/sales:draft-outreach Using the two details you found on [company], draft a first cold email to [name, job title]. Rules: 1. Under 80 words. 2. Line 1 uses detail #1. Work detail #2 in only if it fits naturally. 3. One sentence on the problem, one on the result we get (only real numbers I gave you). 4. End with a low-pressure question, not a meeting request. 5. Plain English, no buzzwords, no exclamation marks. Give me 2 versions. Don't send anything, just draft.
A simple daily routine
| When | What to ask | Time |
|---|---|---|
| Morning | Prompt 1 on your top 5 to 10 target companies | 10 min |
| Before each call | Prompt 2 for a one-page brief | 5 min |
| After research | Prompt 3 for first drafts, then edit by hand | 10 min |
| After each call | "Summarize this call and draft the follow-up" (paste your notes) | 5 min |
Common mistakes
| Mistake | Why it hurts | Do this instead |
|---|---|---|
| Asking for 100 emails at once | You get 100 generic emails | Research one company, get two real details |
| Skipping the best-customer setup | Everyone looks like a fit | Paste the setup prompt first |
| Sending drafts without checking | One wrong "fact" kills trust | Check every detail against its link |
| Letting it invent results | Fake numbers are easy to spot | Only give it real results to use |
| Sending from your main inbox | Volume can hurt your main domain | Use separate, warmed-up sending inboxes |
Links and tools
Quick answers
Is it really free?
The plugin is free and open source (Apache-2.0). You need a paid Claude plan to run it.
Do I need to connect my CRM?
No. It works with web search and what you tell it. Connecting a CRM, email or calendar just gives it more to work with.
Can it send emails for me?
With email connected it can create drafts or send when you ask. We'd keep it on drafts and check each one yourself before anything goes out.
Will this replace a salesperson?
No. It does the research, prep and first drafts. You still do the selling.
Want all of this done for you?
Save the setup time. Our team finds your buyers, writes the emails, answers every reply and books qualified sales calls into your calendar. Talk to our founder for 20 minutes and you will leave with a plan, whether you work with us or not.
Book a call with our founder