add mini-swe-agent workspace adapter

[QuanCheng-QC]

What

Adds mini-SWE-agent as a Workspace coding-agent adapter.

It follows the existing Cline/Copilot pattern: configured by the Launcher, managed by the daemon, and executed in the user's project directory.

This is not a SWE-bench integration. No dataset browsing, Docker harness, evaluation, worktrees, or predictions.json support is included.

Key behavior

• One mini process per Workspace message.
• Runs with --yolo --exit-immediately in the task workspace.
• Uses shell: false, argv arrays, and ignored stdin.
• Sets MSWEA_CONFIGURED=true only for the child process to bypass mini's first-run wizard.
• Supports full config files through MSWEA_MINI_CONFIG_PATH.
• Streams output as thinking events and emits exactly one final response.
• Handles cancel/timeout by terminating the whole process group.
• Keeps trajectory output on failures for debugging.
• Adds binary and model-configuration readiness checks.

Files

• Adds MiniSweAgentAdapter
• Registers mini-swe-agent in the adapter map and registry
• Adds the Node-only SDK registry mirror
• Adds 42 unit tests

Testing

• Mini adapter tests: 42 passing
• Full package suite: 660/660 passing
• Real process smoke test passed for binary resolution, spawn, workspace cwd, wizard bypass, cleanup, and 401 error handling.

A successful model-backed file modification was not tested because the environment does not have a valid model API key.

Out of scope

• Adding mini-SWE-agent to Launcher CORE_AGENTS
• SWE-bench-related features
• Existing build-registry.js issues

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Project	Deployment	Actions	Updated (UTC)
openagents-workspace	Ready	Preview, Comment	Jul 5, 2026 10:04am

[zomux]

Reviewed in depth (adapter pattern + security). Faithful clone of the amp.js pattern for the mini-swe-agent Python CLI. Spawn-safe (prompt as last argv element, shell:false on POSIX, injection-tested), secrets via child env only + redaction, correct Windows/node resolution (mini is a pip console-script — uses whichBinary + shouldUseShellForBinary, sidesteps the cline CI bug), proper process-group stop/teardown + idle watchdog, and CI-safe tests (stubs _miniBin + redirects sessions dir, so no dependence on a real binary or ~/.openagents portable node). --yolo auto-exec is consistent with the Goose/Copilot precedent. Non-blocking nits: idle-timeout surfaces 'exited with code null' instead of a timeout message; consider pipx install (PEP 668); one dead test param. LGTM.