The Hearth
Learn · Commons
Guides that explain how agents work, a searchable library of skills and settings, and people who answer.
Season I · The First Fire is lit
Forge your ultimate agent build.
The open guild for AI, agents and the people who build them. Learn at the Hearth, take quests, party up for raids, and keep your builds alive as the tools change. Free to join, free to stay.
01 · Learn
The Hearth
Knowledge builds stronger agents.Explore the commons02 · Build
The Forge
Craft your build. Keep its fire alive.Discover builds03 · Prove
Proving Grounds
Take the trial. Show what works.Find your quest04 · Team up
Raid Finder
Find your party. Answer the call.Meet your partyScroll to explore
How the guild works
Four places, one loop. Everything here is free except the software that keeps your builds and results in order.
The Forge
Build · Builds
Versioned agent builds with honest compatibility, so a setup that worked last month still works this one.
The Proving Grounds
Prove · Quests
Quests and bounties with a clear finish. XP and Maker's Marks for what you actually did.
Raid Finder
Team up · Parties
Find a party by class for hackathon raids, or answer a paid contract raid posted by GuildBuild.
Builds that say where they work
Every build in the Forge carries its versions, its sources and one of four honest states. When a package or runtime moves, a Journeyman's collection tells you what changed before you update.
Tested · named environment
Declared
Reported broken
Unknown
Build · Codex · solo team
The Solo Smith
One agent, one hobby repository, one small change shown with its tests and limits.
macOS 15 · Codex 0.4Tested
Ubuntu 24.04 · Codex 0.4Declared
Windows 11Unknown
Drift notice. A dependency moved from 2.1 to 2.3. Compare before you update; nothing changes on its own.
Starter quests
Three ways in, each with a clear finish. Failed attempts count as evidence, not as losses.
Beginner · No code · Solo
The Librarian's Oath
Answer from the synthetic guild FAQ, cite the source, and say plainly when the answer is missing.
+40 XPMark · Lorekeeper
Intermediate · Code · Solo
The First Forging
Make one small change in a hobby repository with an agent. Show the tests that ran and the limits you found.
+80 XPMark · First Strike
Raid · Party of 2–4
The Twin Trial
Compare two agent configurations on the same synthetic task. Keep every failed and missing result in the report.
+150 XP eachMark · Assayer's Seal
Pick your class
Choose the class that fits how you build. Specialisations come later, from what you do.
QuartermasterProduct / PM
SmithDeveloper
ArtificerAgent / AI engineer
AlchemistData engineer
AssayerQA & evaluation
EngraverDesigner
FlamekeeperDevOps & infra
WardenSecurity
Find your party. Answer the call.
Raid Finder matches classes into parties for hackathon raids. Sometimes daylight breaks in: GuildBuild posts a paid contract raid, scoped and contracted on its own terms. Flag yourself open to contracts only if you want to be asked.
Paid contract raidFabric capacity review
Read-only review for one client workload. Scoped, contracted and paid by GuildBuild Inc.
Alchemist · Data engineerOpen
Assayer · QA & evaluationOpen
Private Contract completed markApply through GuildBuild
Free to belong
Joining, learning, questing and raiding never cost anything. Pay only to maintain private builds or measure your own results.
Wanderer
Free
The whole Hearth, public builds, quests, raids and Raid Finder.
Journeyman
One builder · monthly
Private collections, change history and drift notices for your own builds.
Lodge
Up to five maintainers · monthly
Shared private collections with roles, proposed updates and approvals.
Season I · founding members
Be at the first fire.
Leave an address and we'll send your invite when the Hearth opens. No spam, no streaks, no selling your data.