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DeepSeek Harness (dsh) is the open-source agent harness DeepSeek released in August 2026. It works with a local model if you declare an openai-completions provider in settings.yaml that points at llama-server, with a placeholder key and the real context size. With Qwen3.5-4B on CPU it left the tests green in 4 of 5 attempts, but slowly.
Engram is a Go binary backed by SQLite and FTS5 that gives coding agents persistent memory over MCP. It stores decisions and conventions between sessions, syncs through git and needs no Node, Python or Docker. Its search is lexical rather than semantic, and that shapes what you should save.
Herdr is a Rust terminal multiplexer that runs your coding agents inside a background server. It marks every pane as working, blocked or idle, and that status rolls up to the workspace, so you can see at a glance which agent is waiting on you.
Between 1 June and 28 August 2026, Claude Code shipped 81 releases, from 2.1.160 to 2.1.251, carrying 149 additions. Four of them change how you actually work: Claude Opus 5 as the default, cross-session messaging, self-hosted environments, and credential masking in the sandbox.
