This release includes breaking changes for platform teams planning a safe upgrade.
✓ No known CVEs patched in this version
Summary
AI summaryUpdates Better agent UX, Reliability fixes, and Shared-browser improvements across a mixed release.
Full changelog
What's new in 0.2.0
agentyc init — bootstrap your coding agent
agentyc init # writes agentyc-skill.md to your project
agentyc init --print # print to stdout
A SKILL.md guide ships inside the package and teaches coding agents the correct usage patterns: the read→ref→act loop, since_hash polling, extraction routes, auth save/restore, parallel agents, and common mistakes.
Token efficiency — ~44,000 tokens saved per typical session
| Optimization | Impact |
|---|---|
| Compact JSON (no indent) | −42% per state response |
| Tool schema trimmed 30% | −1,500 tokens per turn |
| Implicit ARIA role omission | −10–20 tokens per element |
| Scroll/page omitted when trivial | Cleaner unchanged responses |
Better agent UX
- Post-action navigation context —
browser_navigateandbrowser_clicknow return the destination page title so agents skip a follow-upbrowser_get_stateafter navigation. - Scroll in unchanged-state —
changed=falseresponses include current scroll position. - Viewport proximity scoring in
minmode — boosts near-viewport elements; cap raised 25→30. - Actionable error codes — e.g.
Error [stale_ref]: ... Hint: Call browser_get_state() to get fresh refs before retrying.
Shared-browser improvements
- Cookie/session isolation — each
--cdp-urlagent gets its ownTarget.createBrowserContext. - Human-readable titles —
[Agent-1] Page Titleinstead of[agtyc:a1b2] Page Title. - Overlay ribbon removed — tab title is the only ownership indicator.
Reliability fixes
- Network idle detection: snapshot-based counting + JS Performance API fallback for AJAX-heavy pages.
- Stale-ref recovery: partial text matching for transitional button labels.
- 150+ extraction query hints (up from ~50); actionable error for unrecognised queries.
- Sessions never auto-close by default (
session_timeout_minutes=0).
See CHANGELOG.md for the full list.
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About distillation-labs/agentyc
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Beta — feedback welcome: [email protected]