Mimir
The hostask me when you do not know who you need
You: I want the checkout flow cut down. Who do I need?
Mimir: Skuld for what gets cut, Freyja for the screen that remains, and Ullr to prove nothing broke.
How it works
Valhalla sits in front of your model.
It picks who answers, adds what they should know, and sets the shape of the reply. Then it sends the request to the model you already use. We ship no model and run none.
You ask
A question in a conversation tied to your repository, with the members you chose.
Who answers, and in what voicethe members
How your team does itmatched skills
What is true in your fieldyour knowledge
Where the code standsbranch and diff
What you already decidedrecall
Your model answers
Whichever you pick:
Claude CodeAnthropic APIOpenAI-compatibleLocal server
6members at the table
10skills in the library
5workflows
8themes, light and dark
0accounts, cookies or trackers
Six screens
Watch it work.
Every picture here is a screenshot of the running app.
01 / 06
Seat the members you need
Ask one question and two members answer. Eitri takes the structure, Heimdall takes who could abuse it, and each answers in turn.
02 / 06
Read every member's contract
Each member is a markdown file you can open. It holds a voice, a craft and the bar they set for their own work. Edits go into a copy, so the original is always one click away.
03 / 06
Teach it your world
Point it at a repository and it writes down what it can see: the languages, the layout, the commands you run. Each line names the file it came from.
04 / 06
See exactly what changed
When a member changes your code, a strip under the reply lists each file and counts the lines. Review opens the diff, and Undo reverses that one turn.
05 / 06
Give the work a home
A project holds a brief, its own knowledge, a crew and a mission, all tied to one checkout. Every conversation in it starts with all of that already known.
06 / 06
Get a design, not a description
Freyja hands you the design itself. It appears live in a pane beside the conversation, with every version kept, and you can open it full size or edit it.
Missions
Tell the project what it is for.
A mission is the goal of a whole project, split into phases with criteria for when each one is done. You do not have to write it alone: describe what you want to build, and the council drafts it with you.
The members draft it
Ask in a conversation and a member proposes a title, the phases, the criteria for each and which members should carry it. It arrives as a card. Nothing is saved until you press Set as the mission.
Every conversation knows it
The mission goes along with every message in the project, so a chat you open next week works from the same plan as the one you had today.
It stays yours
Members tick off a criterion when they can point at the evidence, and they can add to the plan. They cannot rename it, reorder it or delete from it. A phase with no movement for ten days is marked as stalled.
The council
Meet the table.
Each member owns a craft and leaves one kind of work behind. Seat one, a few or all six. If you are unsure who you need, ask Mimir.
Eitri
Architecturewill it hold, and what does it commit us to
You: Should the payment adapter live inside the billing service or beside it?
Eitri: Beside it. Inside billing, every provider change becomes a billing deploy, and that is the commitment I would avoid.
Skuld
Productwhat ships, what is cut, and what done means
You: We're building Sprout, a plant-watering app. What goes on the first screen?
Skuld: One screen: which plant is thirsty today. That is the whole first cut.
Freyja
Designreality is a draft, and here is the better one
You: Draw Sprout's first screen, the thirsty plants.
Freyja: People will read this with a watering can in the other hand. One list, the thirstiest plant first, and a big tap target on each.
Heimdall
Securitywho can abuse this, and what it costs
You: Can billing call the payment provider directly?
Heimdall: No. Only the adapter holds the provider key, and billing never sees a card number.
Ullr
Qualitydoes it actually work, or does it look like it works
You: A customer was charged twice on checkout yesterday. Hunt it.
Ullr: Found it, and it is not the retry. The confirm button turns back on as soon as the request goes out.
What it does with your data
Yours, on your machine.
It stays on your computer
Conversations, settings, knowledge and skills live in ~/.valhalla as plain files and a SQLite database you can open. There is no account to make.
It talks to one provider, yours
Your message, and what Valhalla adds around it, goes to the AI provider you chose, under their terms. We are not in the middle and never see it.
Nothing about you reaches us
There is no telemetry, no analytics script and no cookie. Downloads and the daily update check are only counted, with no IP address and no identifier. The privacy page has the details.
Take your seat at the table.
For macOS 11 or newer, on Apple silicon or Intel, and for Windows 10 and 11.
This edition is for personal, noncommercial use under our terms.
If you want it for work, see the commercial edition.