This release adds 3 notable features for engineering teams evaluating rollout.
✓ No known CVEs patched in this version
Summary
AI summaryAdded public local‑browser reuse path, canonical browser‑automation skill tooling, refreshed packaged skills guide, and leaner frame enumeration.
Changes in this release
| Type | Severity | Summary | CVE |
|---|---|---|---|
| Feature | Medium |
Adds public local-browser reuse path via CLI flag and env var. Adds public local-browser reuse path via CLI flag and env var. Source: llm_adapter@2026-05-30 Confidence: high |
— |
| Feature | Low |
Adds canonical browser‑automation skill with validation tooling and guide drift test. Adds canonical browser‑automation skill with validation tooling and guide drift test. Source: llm_adapter@2026-05-30 Confidence: high |
— |
| Feature | Low |
Updates packaged skills guide to cover shared‑browser reuse and other workflows. Updates packaged skills guide to cover shared‑browser reuse and other workflows. Source: llm_adapter@2026-05-30 Confidence: high |
— |
| Feature | Low |
Refreshes release benchmark baseline with new metric values. Refreshes release benchmark baseline with new metric values. Source: llm_adapter@2026-05-30 Confidence: high |
— |
| Performance | Medium |
Improves cold frame enumeration by skipping stale unattached pages, reducing median runtime to 24140 ms. Improves cold frame enumeration by skipping stale unattached pages, reducing median runtime to 24140 ms. Source: llm_adapter@2026-05-30 Confidence: high |
— |
Full changelog
v0.3.1
Added
- Public local-browser reuse path —
agentyc mcp --reuse-local-browserandAGENTYC_REUSE_LOCAL_BROWSER=1let agents in other projects attach to the latest locally launched Agentyc browser without manually copying a CDP URL, andagentyc browser --detachnow registers that browser for later reuse. - Canonical browser-automation skill and guide validation tooling —
.agents/skills/agentyc-browser-automation/now carries the shared-browser/browser-tool playbook with an eval rubric and cases, and the repo now includes skill validation/eval helpers plus a distributed-guide drift test.
Changed
- Packaged skills guide refreshed —
agentyc initnow emits guidance that explicitly covers shared-browser reuse, same-browser-process/profile versus same-tab safety, tool-selection rules, cookies and storage workflows, richer interaction recipes, JS evaluation, and a fuller quick-reference tool list across the 66-tool browser MCP surface. - Cold frame enumeration path is leaner —
browser_list_framesnow skips stale unattached page targets before attempting a CDP session attach, which materially removes the old cold frame-path stall and improves the confirmed two-run headless stdio median to24140.0 mstotal with43.3 msaverage /161.6 msp95 tool latency. - Release benchmark baseline refreshed — the current confirmed two-run headless medians are runtime
import_ms=194.4,session_init_ms=1027.4,avg_auto_payload_reduction_pct=10.2, andcollaboration_latency_ms=1283.1, with recall/action metrics remaining1.0.
Tests
- New shared-browser and frame-path coverage —
tests/ci/test_mcp_cli.py,tests/ci/test_mcp_runtime_optimizations.py, andtests/ci/browser/test_frame_target_filtering.py. - New distributed-guide and skill-quality coverage —
tests/ci/infrastructure/test_distributed_skill_guide.py,tests/ci/infrastructure/test_skill_quality.py,scripts/validate_skills.py, andscripts/run_skill_evals.py.
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