Blocker-aware decision layer for AI agents
PocketLantern attaches source-linked blocker facts to AI technical decisions.
Open-source toolkit. Install with npm, connect to your AI agent.
Available on GitHub · npm · MCP Registry · Glama
Caught recently: Next.js 16 Upgrade: Turbopack Default and Async Request APIs · Migrate OpenAI Realtime API Beta to GA Before May 7, 2026 · Clerk vs Auth0 vs Cognito Under Current Pricing and Feature Changes
See it in action
“Which auth provider?” — one question, blocker-aware answer in seconds.
Real MCP session. Source-linked facts.
Ask your AI about choosing auth, upgrading frameworks, or using new
APIs. It sounds fine.
PocketLantern surfaces the blockers it may miss.
"Which auth provider — Clerk, Auth0, or Cognito?"
"It depends on your team size. Clerk for DX, Auth0 for enterprise, Cognito for AWS cost savings."
"Factor in migration escape cost before choosing:"
"Should I upgrade to Next.js 16?"
"Turbopack is now default. Use the codemod and upgrade."
"Upgrade, but plan for 4 breaking changes:"
"Can I use the OpenAI Realtime API for voice agents?"
"GA is available. Use gpt-4o-realtime-preview for production."
"Use GA, but preview models are removed 2026-05-07:"
Same question. Same AI. Different facts.
One search. Blockers surfaced.
One question. Blockers surfaced. That's the experience.
search_cards("clerk vs auth0 authentication")
matched cards + blocker warnings from sidecar blocker edges
⚠️ Lock-in: Cognito hashes non-exportable · EOL: Auth0 Rules
Nov 2026
pipeline-checked constraints that training data often misses
Agent answers with the full picture — with blockers and version floors included
Not opinions. Not tutorials. Not “best practices.”
Breaking
changes, EOL dates, lock-in risks, and other blocker facts AI agents
often miss.
Next.js 16 webpack build failure, Prisma v7 ESM-only, OpenAI event schema rename
Redis 8 AGPL copyleft, Terraform BSL 1.1, Valkey as BSD alternative
Cognito password hashes permanently locked, Supabase pg_dump fully portable
OpenAI Realtime Beta May 2026, Node.js 20 April 2026, Auth0 Rules Nov 2026
Curated blocker-dense decision cards. Try these first:
Select an auth vendor for a SaaS app given recent pricing shifts, MAU
Decide when to upgrade to Next.js 16, given Turbopack becoming the
Teams already using OpenAI Realtime need to know what breaks when the
Measured from the actual bundle shipping with this repo.
For covered questions, PocketLantern answers from the bundled cardset — locally and instantly.
Install with npm and connect to Claude Code, Cursor, or any MCP client.
$ npm install -g pocketlantern
$ pocketlantern init # registers MCP server
# Then ask: "Which auth provider — Clerk, Auth0, or Cognito?"Blocker-aware decision cards across 27 categories, growing. Source-linked facts with sidecar blocker edges.