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MIRA v0.299.0 — public beta

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@tarekedOz tarekedOz released this 15 Jul 14:08
v0.299.0
ea0da17

MIRA v0.299.0 — public beta

The current public-beta build of MIRA — a self-hostable, single-binary personal AI agent that runs on hardware you control. A project of Vexillon. Licensed under AGPL-3.0-or-later.

⚠️ Public beta (pre-release). Recommended build for new installs; supersedes v0.298.0.

Long conversations, managed

  • Token-aware context budget. Conversations are now packed to a configurable token budget (Settings → Agent), so long threads stay within a model's limits instead of overflowing.
  • Automatic compaction. When a thread grows past the budget, older turns are folded into a rolling summary — hard facts, decisions, open threads, and preferences — while recent turns are kept verbatim. A safeguard captures each turn's summary before that turn can be dropped, so nothing is silently lost.

Prompt caching that works across providers

  • A stable cached prefix across turns, with explicit cache control on Anthropic's system prefix and cached-token accounting captured for OpenAI and OpenRouter.
  • Per-turn cache read/write instrumentation, so you can see caching actually working.

Tool calls that work on every provider

  • Tool schemas are normalised per provider — Anthropic input schemas are sanitised and Gemini schemas flattened — so tool calls now work reliably on both, with real API errors surfaced instead of failing silently.

Also

  • New mira bench context command: a no-spend benchmark harness for the context budget (no API calls, no cost).

Install

Linux / macOS: curl -fsSL https://get.vexillon.ai/install.sh | sh · Windows: irm https://get.vexillon.ai/install.ps1 | iex

Or download the archive below, extract the mira binary onto your PATH, and run mira setup. The web UI is bundled into the binary.

Targets

mira-0.299.0-x86_64-unknown-linux-gnu.tar.gz · -aarch64-unknown-linux-gnu.tar.gz · -x86_64-apple-darwin.tar.gz · -aarch64-apple-darwin.tar.gz · -x86_64-pc-windows-msvc.zip

Verify

Signed with minisign under vexillon.ai:

sha256sum -c SHA256SUMS
minisign -Vm mira-0.299.0-x86_64-unknown-linux-gnu.tar.gz \
  -P RWQX8PcjZB3S8i1V9AkZgUKoIy+eZWRzaEHKvBW9U/mkMP9Vp0B8xOaO

Trusted comment: signed by vexillon.ai — MIRA 0.299.0.

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