cosskill

cosskill

Rehearse high-stakes conversations with realistic AI persona

cosskill is an AI communication simulator for rehearsing high-stakes conversations — salary negotiations, performance feedback, difficult personal talks — by speaking with realistic AI personas before they happen.

Startups · Technology · Business & Finance

Features

Realistic AI personas for conversation practice

Scenario library: salary negotiation, performance feedback, difficult personal talks

Practice without sign-up — 3 free messages; Pro unlocks unlimited

Use Cases

Rehearse a salary negotiation before the real conversation

Prepare for delivering difficult feedback as a manager

Practice a hard personal conversation before it happens

AI Agents Listing

Find the agents, MCP servers and skills that work together

Comments

neo xia

Indie hacker

cosskill lets you rehearse high-stakes conversations — salary negotiations, performance feedback, difficult personal talks — with realistic AI personas before they happen. Free to try: 3 messages without sign-up, 10 after sign-in, all personas and scenarios included. Feedback welcome.

Upvote Reply

Premium Products

Backdrop

Live in-call sales assistant

VoiceDrop

AI-Powered Ringless Voicemail & SMS

Bookeen

The book you keep meaning to write. Finished.

Lockedweb - Porn Blocker

Porn blocker with no instant off switch.

NexPept

Lab-tested research peptides for Canadian laboratories

IZIPAY

IZIPAY is a crypto-funded virtual and physical card service

SendHeron

Email automation that sets itself up. You approve every word

GizmoBench

500+ free browser tools for everyday tasks

Sealed Rose Deepfake Video Detector

AI deepfake video & synthetic media forensics platform.

Skillry

Keep your agent's output free of AI slop

Reply200

Handle every comment: grow organic reach, sell under ads

BillingHub

Pay per invoice, not per month. Credits never expire.

The Influencer AI

Create consistent AI influencers. Photos & videos in minutes

ShimmerPic

GPT Image 2.5, Nano Banana, Midjourney & more in one studio

Suparelay

Call landlines and mobiles worldwide from your browser

PrompTessor

Generate, optimize, and manage AI prompts in one space

Transcribe Video AI

Transcribe, Summarize, and Create with AI.

StarterKitPro

StarterKitPro is your 90% done SaaS starter kit - all in Next.js

AirlineStream.dev

Airline logos for your app, delivered by API

Face2social

Face search across public social media profiles

Behavioral Health Payer Policies Tool

Prior-auth, coding and medical-necessity rules for 150+ payers

Wowmade.ai

AI Video, Image & Music Generator in One Creative Platform

Zinn Hub® Freelance Marketplace

The Fairer Freelance Marketplace

Renoir AI

Create stunning images, videos, and audio with AI.

CalculatorFox

Free online, embeddable calculators

ego lite

Fastest browser for AI agents

Kipper

Ask your finance system questions in plain English

Friday

https://askfriday.io/

AI Tools List

Discover, compare, and explore the best AI tools

TaroTown

AI Tarot Readers That Remember the Whole Story

Buy

AI Agents Listing

Find the agents, MCP servers and skills that work together

AutomateNexus CRM

AI-native CRM: phone receptionist, notetaker and AI agents

AdPlug MCP

Google Ads MCP and LinkedIn Ads MCP for PPC specialists

neo xia · Follow

Indie hacker

Makers

neo xia · Follow

Indie hacker