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Insights, analysis, and updates from the AI agent economy. Browse by tag · Browse the archive.
Render Taught an AI Agent to Migrate Your Heroku App: What It Gets Right, What Still Needs You, and the Bill at the End
Render's open-source migration skill lets an AI agent move a Heroku app — dynos, config, Postgres — over MCP in minutes. A line-by-line test of the before/after bill, what the agent nails, where a human is still required, and the five capabilities your own fleet needs before migration becomes a prompt.
Render Cut Docker Builds From 87s to 32s: Where the Seconds Went and How to Match It on Hardware You Own
Render cut median Docker builds from 87 seconds to 32 with upload tuning, faster scheduling, and registry-backed caching. A lever-by-lever teardown of where those seconds lived, and the owned-hardware recipe — warm BuildKit builders, registry cache, cache mounts — that matches it.
One GPU Per Sandbox: What Modal's Whole-Card Bet Costs Against E2B and Daytona's CPU-First Lanes
Modal puts whole GPUs inside sandboxes while E2B stays CPU-only and Daytona's GPUs are ephemeral-only. The reason is physical — Firecracker and gVisor cannot pass a GPU through — and the billing consequence is an 8x cost swing on GPU busy fraction alone.
MCP Has 10,000 Servers but Three Production Gaps: Identity Propagation, Timeout Budgets, and Structured Errors for Deploy Agents
Ten thousand MCP servers and 97 million monthly SDK downloads made connecting agents to tools trivial — but an agent that can deploy and roll back production needs scoped identity, timeout budgets, and machine-readable errors first. This post designs that deploy surface, tool by tool.
Kubernetes 1.37 Kills the Last Idle Pod: Native HPA Scale-to-Zero vs KEDA for Sleeping Apps
Kubernetes 1.37 graduates HPA scale-to-zero to beta and enables it by default: queue workers can shed every replica with minReplicas 0 and no KEDA. HTTP apps still need a buffering layer, and beta isn't ready for a tenant SLA — the head-to-head, the idle-bill math, and the checklist.
Heroku Killed 12 TLS Ciphers: The Legacy-Client Audit Your Self-Hosted PaaS Needs Too
Heroku removed 12 legacy TLS cipher suites and enabled TLS 1.3 with HTTP/2 on August 24, 2026. Here is which clients break, a reproducible openssl/sslyze/testssl.sh audit for your own domains, and the cert-manager plus Gateway API baseline to match it.
H100 Rentals Crashed 70%. Should You Still Buy the GPU?
H100 rentals fell from $8-10/hour in late 2024 to about $2.50 on specialized clouds. A worked own-vs-rent comparison shows the breakeven moved from 27% to 87% utilization — ownership is now a bet you justify with measurements, not the default.
The Free Tier Is Dead (Except Twice): A September 2026 Audit of Where a Side Project Still Lives for $0
Only Render and PythonAnywhere still offer free-forever hosting in September 2026 — Railway and Fly.io are trial-credit-only and Heroku has been paid-only since 2022. A verdict table for all six providers plus worked per-project math showing why one €3.99 Hetzner box split across side projects beats every meter.
Fly.io Started Charging for Traffic That Used to Be Free: What the Two New 2026 Meters Cost Against Flat Hetzner Bandwidth
Fly.io metered volume snapshots in January 2026 and Managed Postgres inter-region traffic in February. A worked line-item bill for a two-region app under the new meters against a flat Hetzner pair, plus the sensitivity cases — bigger data, heavier replication, costlier regions — where the meters multiply.
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