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Klaat Code

#245 overall#118 terminal agentunverified rowV2.5.0

Terminal coding agent whose hosted router picks a cost tier per message and indexes your repo into a call graph instead of grepping it

Key differences

Terminal coding agent whose hosted router picks a cost tier per message and indexes your repo into a call graph instead of grepping it

  • Runs local and cloud. The CLI is Apache-2.0, but it is a client to the hosted Klaatu service; quota is consumed per user message, not per tool call
  • Supports headless CI workflows. Listed for 55 of 125 tools in this category.
  • Keep in mind: Routing, model health tracking, pricing and the code-graph index all live server-side at klaatai.com; the CLI is described as a thin terminal to that service.

“Six model tiers named nano through titan, so your bug fix now arrives with a weight class.”

Website Docs 358 starsCompare vs…Dispute a fact
Appeal a claim or request ownership transfer

What it is

Klaat Code is KlaatAI's terminal agent: a thin open-source client to the hosted Klaatu router, which classifies each message and dispatches it to one of six cost tiers from nano to titan, escalating automatically when a task turns out harder than it looked. The project is indexed into a call graph with semantic search, so the agent queries symbols, callers and blast radius and plans its file-read order before reading anything. Tool rounds are unlimited and free — only your messages count against quota — and the CLI adds burn-rate warnings, per-phase token budgets, a hard session cap and a --max-cost flag for CI, plus compaction that snapshots state first and tells the model what was lost.

Specification

Source verification

Row snapshot checked not yet. Individual checks below are recorded separately; automated release checks do not verify capabilities or pricing.

readme
Needs individual review
install
Needs individual review
models
Needs individual review
license
Needs individual review

Architecture

Type
Terminal agent
Runsunsourced
local, cloud
Platforms
macos, linux, windows
Context windowsrc ↗
not documented
Languages
any

Models

Backbonesrc ↗
Klaatu-o1 router over six model tiers (nano, fast, code, reason, heavy, titan)
Bring your own model
No
Routing, model health tracking, pricing and the code-graph index all live server-side at klaatai.com; the CLI is described as a thin terminal to that service.
Local models
No

Protocols

MCP clientunsourced
No
MCP server
No
OpenAPI tools
No

Capabilities

Terminal commandsunsourced
Yes
Multi-file edits
Yes
Git operations
No
Browser control
No
Sandboxed execution
No
Multi-agent
No
Headless / CI
Yes

Cost

Modelunsourced
usage
Starts at
n/a
Free tier
No
Bring your own key
No

The CLI is Apache-2.0, but it is a client to the hosted Klaatu service; quota is consumed per user message, not per tool call

Openness

Open sourcesrc ↗
Yes
License
Apache-2.0
First release
unknown
open-sourcemodel-routingcode-graphcost-controlterminalhosted-backend

Los Agentes on Klaat Code

Who are they?
The ruling
El JuezThe judge

El Amigo and El Hacker are further apart on this row than on any other, and the gap is entirely about who is allowed to own the part that decides.

Trial only
Reasoning and trade-offs · AI analysis

El Amigo likes a meter that counts only what he types and stops charging for the work in between. El Hacker will not accept a client that cannot run without somebody else's server standing behind it. El Crítico is with him.

El Amigo wins on the reader's actual complaint, which is the bill, and El Hacker is overruled on preference rather than fact: most people do not want to own the router, only to stop watching it. La Inversora's point about the missing price stands. Trial only, and the exit criterion is a published rate you can budget against.

Agree with El Juez?
El AmigoThe friend

Pick it if watching the meter has changed how you use these tools; pick a bring-your-own-key terminal agent if you would rather own the bill outright.

6.3
Reasoning and trade-offs · AI analysis

The deciding trait is what it does not charge you for. Tool rounds are unlimited and free, and only the things you type count against quota, which quietly removes the habit most people have developed of rationing questions and cramming three requests into one badly worded turn.

That changes how you work more than any feature on the page, because the cost of asking again drops to nothing. What you give up in exchange is control of everything behind the prompt. Pick it if the meter has been living in your head. Pick a key-based terminal agent if you would rather own the bill.

reliability
6
usefulness
7
cost
7
longevity
5
Agree with El Amigo?
El CríticoThe critic

A classifier you cannot see chooses which model answers and escalates on its own, so the same prompt can be handled differently tomorrow with no record of the change.

5.3
Reasoning and trade-offs · AI analysis

The problem is reproducibility. Model selection happens per message on the far side of the network, with automatic escalation when a task turns out to be harder than it looked, and nothing lets you pin a tier or read back which one answered. A run that worked yesterday is not a run you can repeat.

That matters most where the tool is aimed: if you are optimising cost, you cannot attribute a cost to a decision you neither made nor can inspect. What it does right is escalating at all. A router that never upgrades is cheaper and worse, and this one at least admits when a task got harder.

reliability
5
usefulness
6
cost
6
longevity
4
Agree with El Crítico?
El ProfesorThe professor

The repository is indexed into a call graph with semantic search, so the agent asks for symbols, callers and blast radius and plans its read order before opening a file.

6.8
Reasoning and trade-offs · AI analysis
  1. This is a real answer to the context problem rather than a larger window. Text search returns what matches; a call graph returns what participates, which is a different relation and the correct one for a change that has to compile. 2. Planning the read order before reading anything is the part that stands out.

  2. No measurement accompanies it. There is no published comparison against a retrieval baseline on the same tasks, which is precisely the experiment this design asks for and would not be difficult to run. The architecture is well chosen and entirely unevaluated, which is a common pairing.

reliability
7
usefulness
7
cost
7
longevity
6
Agree with El Profesor?
La InversoraThe investor

Quota is charged per message, and neither a price nor a free allowance is published anywhere, which is a pricing page that has not decided what it wants to be.

5.0
Reasoning and trade-offs · AI analysis

Charging for messages rather than tokens is a genuinely good idea, because it sells a unit the customer understands and can predict. What undermines it is that the unit has no number attached to it. A buyer cannot compare this against anything, so the sale needs a conversation, and conversations do not scale to individual developers.

Moat: the routing data, if usage ever accumulates enough of it to make the classifier better than a competitor's. Likely acquirer is an inference provider that wants a demand aggregator. Position: wait for a rate card, then evaluate the product instead of the promise.

reliability
5
usefulness
6
cost
5
longevity
4
Agree with La Inversora?
La JefaThe CTO

Budget controls I did not have to build myself: burn-rate warnings, per-phase token budgets, a hard session cap and a maximum cost flag for unattended runs.

5.5
Reasoning and trade-offs · AI analysis

Somebody on that team has been shouted at by a finance department. Warnings while a session runs, a ceiling per phase, a hard stop on the session, and a cost limit on an unattended run are four controls I usually have to invent myself and enforce with a wrapper script nobody maintains.

What is absent is everything above the individual. No single sign-on, no provisioning and no per-team reporting, so sixty seats means sixty accounts I did not create and cannot see across. Not yet: the spend controls are excellent, and I need one place to read them from before this goes past a pilot.

reliability
6
usefulness
6
cost
6
longevity
4
Agree with La Jefa?
El HackerThe tinkerer

The client is Apache-2.0 and the client is all I get: no key of my own, no local weights, no protocol, and every decision that matters made on hardware I cannot touch.

4.0
Reasoning and trade-offs · AI analysis

This is the shape I distrust on principle. An open licence on a terminal client is not ownership when the router, the index and the pricing all live on a server I cannot run, and the source I am permitted to read is the part that does the least work in the whole system.

I cannot supply a key, nothing runs on my own hardware, and there is no protocol for attaching the servers I already operate. Grudging respect for the honesty of the README, which says plainly that the client is a thin terminal to a service. It is exactly that.

reliability
4
usefulness
5
cost
4
longevity
3
Agree with El Hacker?