distillation-labs/agentyc

v0.2.13 Feature

This release adds 2 notable features for engineering teams evaluating rollout.

Published 12d MCP Browser & Automation

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✓ No known CVEs patched in this version

Affected surfaces

auth

ReleasePort's take

Light signal

editorial:auto 12d

Shared‑browser subagents now automatically reuse the same Chrome profile by default.

Why it matters: Defaulting to a single browser profile simplifies testing environments and reduces configuration overhead for developers, SREs, and security engineers managing subagent workflows.

Summary

AI summary

Shared‑browser subagents now reuse the same Chrome profile by default.

Changes in this release

Type	Severity	Summary	CVE
Feature
Feature	Medium	Shared-browser subagents now stay in the same browser profile by default. Shared-browser subagents now stay in the same browser profile by default. Source: llm_adapter@2026-05-23 Confidence: high	—
Feature	Medium	Benchmark baseline refreshed to use confirmed two-run headless medians for runtime metrics and stdio stats. Benchmark baseline refreshed to use confirmed two-run headless medians for runtime metrics and stdio stats. Source: llm_adapter@2026-05-23 Confidence: low	—
Feature	Medium	New real-browser parallel-subagent coverage test added. New real-browser parallel-subagent coverage test added. Source: llm_adapter@2026-05-23 Confidence: low	—
Performance	Low	Benchmark baseline refreshed with new headless median metrics and stdio statistics. Benchmark baseline refreshed with new headless median metrics and stdio statistics. Source: granite4.1:30b@2026-05-23-audit Confidence: low	—

Full changelog

[0.2.13] - 2026-05-22

Changed

Shared-browser subagents now stay in the same browser profile by default — runtimes launched with agentyc mcp --cdp-url ... still claim a dedicated collaboration tab automatically, but they no longer create a per-runtime Chrome BrowserContext during attach. This keeps cookies, local storage, and authenticated workspace state available across parallel subagents while preserving tab-scoped refs, console logs, and network logs.
Benchmark baseline refreshed — the public benchmark references now use the confirmed two-run headless medians: runtime import_ms=241.5, session_init_ms=1371.4, collaboration_latency_ms=1456.8, plus stdio success=1.0, accuracy=1.0, precision=1.0, duration_ms=53942.6, avg_ms=50.2, p95_ms=202.5.

Tests

New real-browser parallel-subagent coverage — tests/ci/browser/test_parallel_subagent_tabs.py verifies that multiple attached subagents automatically get distinct owned tabs, share browser auth/storage state, and can run parallel actions without cross-tab bleed.

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