Slack launches Botkit, an open-source framework for building apps for Slack, after working closely with Howdy
Slack Is Releasing Botkit To Make Bots Easier To Build — Slack, the increasingly popular team-messaging software, wants more developers to build apps that hook into its work-chat software.
Context & Ripple Effects
Botkit lands on the same day Slack opens its third-party App Directory alongside an $80M developer fund at 2M daily active users — the framework is the tooling half of that ecosystem play, built with bot-maker Howdy so developers have a starting point beyond raw API docs.
The pattern holds afterward: Slack's Slack Fund puts $2M into 14 Slackbot startups, then backs 11 more bot makers, while interface layers like Block Kit and interactive buttons standardize how those bots look and behave. A decade later the endpoint is Salesforce shipping an AI-powered Slackbot in general availability — the bot framework era maturing into assistants inside the work-chat surface.
First-order effects
- Slack developers gain an open-source, Howdy-tested scaffold for building chatbots against the newly launched App Directory, lowering the cost of the first wave of integrations.
- Howdy gets its bot-building approach validated and distributed as Slack's official starting point, positioning it inside the ecosystem rather than competing with it.
Second-order effects
- A funded bot startup pipeline emerges: with Slack Fund capital flowing into Slackbot-focused companies within months of the launch, Botkit becomes the common substrate those portfolio startups build on.
- Competing team-messaging platforms face pressure to match the developer-fund-plus-framework package if they want comparable third-party app catalogs.
Third-order effects
- If the arc from Botkit through Block Kit to the AI Slackbot holds, the durable structure is a chat client evolving into a work surface where third parties — and eventually agents — are the product layer, with Slack owning the distribution and interface standards.
- Open-sourcing the framework sets the template for how platform owners recruit builders without owning every integration: free tooling up front, monetized platform access behind it.
The trend: Team-chat platforms are turning themselves into extensible work surfaces by subsidizing developer ecosystems whose endpoints evolve from scripted bots into embedded AI assistants.