What does this plugin do?
B2B Research: Market and Account is a free Claude plugin with research skills for B2B teams, built by Shashwat Ghosh, Helix GTM Consulting. It researches target accounts with verified and unverified lists, builds research assets with numbers locked to the source, fact checks every claim before it goes out, and judges another model's critique point by point.
What does each skill do?
| Skill | What it does | Example prompt from the README |
|---|---|---|
Account researchaccount-research | Target account lists, list audits and enrichment in fixed fields, and a one account brief in TOPS order (technographics, organisation, person, situation) with a probe question for every finding, verified and unverified lists, and every account on the list covered. | “Brief me on this account before Thursday's call with their head of IT.” |
Evidence research assetevidence-research-asset | Post series, briefs, reports, benchmarks, white paper outlines and case studies where every number is checked against the publisher's own topline and locked across every asset, plus a three lens white paper review. | “Turn this threat report into a five post series for plant IT heads.” |
Claims fact checkclaims-fact-check | A claims register for every claim in a post, deck or release, fixes only what is wrong, screenshot mode, a personal data check on every image, and a date and weekday check. | “Fact check this post before I publish it.” |
Second opinion reviewsecond-opinion-review | Another model's or a colleague's critique judged point by point through three filters (facts, your objectives, tone), four verdicts, and one final version. | “Another AI assistant reviewed my draft. Which of its points should I take?” |
Who is it not ideal for?
- Sizing a market or building TAM, SAM and SOM: this version does not do that.
- Anyone who does not use Claude: plugins add skills to Claude only. In a browser, ChatGPT or another assistant, use the connectors.
How do I install it?
Claude Code
/plugin marketplace add shashwatgtm/b2b-research-market-and-account /plugin install b2b-research-market-and-account@b2b-research-market-and-account
Or from a terminal: claude plugin marketplace add shashwatgtm/b2b-research-market-and-account then claude plugin install b2b-research-market-and-account@b2b-research-market-and-account.
Claude app and Cowork
- Open Customize in the sidebar, then Plugins.
- Select Add marketplace and enter
shashwatgtm/b2b-research-market-and-account. - Find the plugin in the list and select Install. Its skills apply when relevant, or type
/to run one.
Anthropic's plugin documentation says a plugin added in Claude under Customize, then Plugins, is saved to your Claude account, so its skills are also available in Claude chat on the web, desktop and mobile, in Cowork and in Claude Code (Anthropic: Plugins). Plugins in Claude are available on paid plans: Pro, Max, Team and Enterprise (Anthropic Help Center). The plugin's README says its Stop hook runs only in Claude Code; Anthropic's Help Center says hooks run in Cowork and Claude Code, not in chat.
What does it cost, where is the source, and what happens to my data?
- Source code: github.com/shashwatgtm/b2b-research-market-and-account (version 1.0.5)
- Licence: MIT. Credit: Shashwat Ghosh, Helix GTM Consulting.
- Privacy: This plugin sends no data to Helix GTM Consulting and runs no server. It keeps no account and no log, and any file Claude writes for you goes only to your own working folder. Claude keeps its working notes (the answer as checked, your message, the pages opened, the ledger) in a claim-ledger folder in your working folder, with a pages folder holding the text of each page opened in the session, as the web tool returned it. The Stop hook (Claude Code only) reads the session transcript on your computer and writes nothing. The README in the repository has the details.
Questions and answers
Who is it for?
B2B teams. The plugin's README describes it as research skills for B2B teams.
How do I install it?
In Claude Code, run /plugin marketplace add shashwatgtm/b2b-research-market-and-account and then /plugin install b2b-research-market-and-account@b2b-research-market-and-account. From a terminal, run claude plugin marketplace add shashwatgtm/b2b-research-market-and-account and then claude plugin install b2b-research-market-and-account@b2b-research-market-and-account.
Which skills does it include?
It includes four skills: account-research, evidence-research-asset, claims-fact-check, second-opinion-review.
Is it free?
Yes. It is free to install from GitHub under the MIT licence. This plugin sends no data to Helix GTM Consulting and runs no server.