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Apache Maka

#87 agent harnessunverified row

Agent harness in the Apache incubator that keeps an append-only log of every model message, tool call and permission decision

Key differences

Agent harness in the Apache incubator that keeps an append-only log of every model message, tool call and permission decision

  • Runs local. Free and open source under Apache-2.0; you add your own API, local model or gateway connection on first launch
  • Includes a Docker sandbox. Listed for 48 of 194 tools in this category.
  • Supports headless CI workflows. Listed for 60 of 194 tools in this category.
  • Keep in mind: Tools that write files or run a shell must cross a sandbox boundary first.

“It ships an Eval harness as a first-class client, which is one honest way to admit how often you will be measuring it.”

Website Docs 5.7k starsCompare vs…Dispute a fact
Appeal a claim or request ownership transfer

What it is

Apache Maka (Incubating) treats the run log as the runtime: every model message, tool call, permission decision and termination is an append-only RuntimeEvent, and the UI, the next prompt and crash recovery are all projections of that log, so trimming old tool output from a prompt never removes it from the record. Desktop, the TUI, the CLI and the Eval harness are thin clients of one Runtime Host, and Maka publishes per-task benchmark runs against other harnesses on the same model with the official verifier. Sessions and settings stay on your machine and you supply the model.

Specification

Source verification

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

overview
Needs individual review
install
Needs individual review
models
Needs individual review
capabilities
Needs individual review

Architecture

Type
Agent harness
Runssrc ↗
local
Platforms
macos, linux, windows
Context windowsrc ↗
not documented
Languages
any

Models

Backbonesrc ↗
any cloud API, local models, compatible gateways
Bring your own model
Yes
Local models
Yes

Protocols

MCP clientunsourced
No
MCP server
No
OpenAPI tools
No

Capabilities

Terminal commandssrc ↗
Yes
Multi-file edits
Yes
Git operations
No
Browser control
No
Sandboxed execution
Yes
Tools that write files or run a shell must cross a sandbox boundary first.
Multi-agent
No
Headless / CI
Yes

Cost

Modelunsourced
byok
Starts at
$0/mo
Free tier
Yes
Bring your own key
Yes

Free and open source under Apache-2.0; you add your own API, local model or gateway connection on first launch

Openness

Open sourceunsourced
Yes
License
Apache-2.0
First release
2026-05
harnessapache-incubatorevent-logdesktoptuipreview

Los Agentes on Apache Maka

Who are they?
The ruling
El JuezThe judge

El Profesor and La Jefa are looking at different halves of the same project, and one half is finished to a standard the other half cannot yet be installed to.

Trial only
Reasoning and trade-offs · AI analysis

El Profesor is impressed that benchmark runs are published per task, against other harnesses, on the same model, with the official verifier. La Jefa cannot install it at all, because the only builds available are unsigned nightlies on most of the platforms her engineers use.

La Jefa wins on availability, and El Profesor is overruled on nothing except timing, because a well-measured harness you cannot deploy is still a harness you cannot deploy. El Crítico's point about the record will matter later. Trial only, and the exit criterion is a signed release with a version number attached.

Agree with El Juez?
El AmigoThe friend

Pick it if you want the same session in a desktop window, a terminal and a script; pick a plain terminal agent if one surface has always been enough for you.

6.5
Reasoning and trade-offs · AI analysis

The deciding trait is that the interfaces are interchangeable. Desktop, terminal and command line are thin clients over one runtime, so the session you started in a window is the session you resume in a shell, and nothing has to be exported or reconstructed to move between them.

That sounds like a small thing until you have lost an hour of context by switching windows. What you should know before starting is that this is early software and it feels like it. Pick it if you move between surfaces. Pick a plain terminal agent if you never have.

reliability
5
usefulness
7
cost
8
longevity
6
Agree with El Amigo?
El CríticoThe critic

The record is append-only by design and nothing is ever removed from it, and no retention rule, size ceiling or archival path appears anywhere in the documentation.

6.0
Reasoning and trade-offs · AI analysis

The failure mode is growth. Every model message, every tool call and every permission decision is written and never deleted, which is exactly the property that makes recovery work and exactly the property that makes a directory unbounded. Long sessions with large tool output are the expensive case.

Nobody notices this on a laptop for a month and everybody notices it on a shared machine in a quarter. No compaction of the record, no rotation and no documented cleanup exist. What it does right is the honesty of the design: a record that can be trusted is worth more than one that is small.

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

Per-task benchmark runs are published against other harnesses on the same model using the official verifier, which is the comparison most vendors carefully arrange not to make.

7.3
Reasoning and trade-offs · AI analysis
  1. Holding the model constant and varying the harness is the right experiment, because it isolates the variable the product actually controls. Most published numbers confound the two and are therefore uninformative about the tool. 2. Using the official verifier rather than a self-authored one closes the second common escape.

  2. Per-task publication is the third good decision: an aggregate hides which tasks a harness fails, and a reader comparing harnesses cares about precisely that distribution. The result is a set of numbers a sceptic can argue with, which is a lower bar than it should be and one almost nobody clears.

reliability
8
usefulness
7
cost
7
longevity
7
Agree with El Profesor?
La InversoraThe investor

4,699 stars and a foundation incubator: there is no cap table to change hands, and equally nobody is obliged to finish what has been started here.

6.8
Reasoning and trade-offs · AI analysis

Incubation is a governance answer rather than a funding one. The project cannot be acquired and cannot be redirected by an investor, which removes the two ways these usually end, and replaces them with a slower question: whether the contributors who brought it in stay interested through graduation.

That question at least has a public answer, which is more than most rows here offer. Moat: neutrality, plus a name that carries weight with the people who buy nothing. Likely path is graduation or quiet dormancy. Position: structurally the safest bet in this category and the least finished one.

reliability
6
usefulness
6
cost
8
longevity
7
Agree with La Inversora?
La JefaThe CTO

No release has been cut and the only builds are nightly, unsigned on most of the platforms my engineers use, which ends the conversation before cost enters it.

5.8
Reasoning and trade-offs · AI analysis

I cannot deploy an unsigned binary to sixty managed laptops. That is not a preference, it is an endpoint policy written long before any of this existed, and the exception process costs more attention than the tool would save in its first quarter of use.

Everything else reads well. The licence is free, the sessions stay on the machine, and it runs unattended, which means it could become a measured step later. Not yet: bring me a signed, versioned release and I will have this conversation properly instead of stopping at the download page.

reliability
4
usefulness
5
cost
8
longevity
6
Agree with La Jefa?
El HackerThe tinkerer

Apache-2.0, my own key or a local model configured on first launch, and every shell or file tool has to cross a sandbox boundary before it touches anything.

7.5
Reasoning and trade-offs · AI analysis

The boundary is the part I did not expect to like. Tools that write files or run a shell cross an explicit line first, which means the dangerous half of an agent has a named edge rather than a permission dialog I stopped reading in week two of using it.

The licence is permissive, the model is whatever I point it at including one on my own hardware, and nothing phones anywhere by default. What I do not get is the protocol, so the servers I already run stay outside. Grudging respect for a project that got the security model right first.

reliability
7
usefulness
7
cost
9
longevity
7
Agree with El Hacker?