distillation-labs/agentyc

v0.2.6 Bugfix

This release fixes issues for SREs watching stability and regressions.

Published 16d MCP Browser & Automation

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✓ No known CVEs patched

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✓ No known CVEs patched in this version

ReleasePort's take

Light signal

editorial:auto 12d

Release v0.2.6 fixes several benchmark and browser‑control bugs and adds a headed stdio mode while improving performance.

Why it matters: Patch to v0.2.6 immediately if you run benchmarks or rely on reliable local‑browser teardown; headed runs now average 110 ms latency (24 % faster than headless).

Summary

AI summary

Fixed form‑control discoverability, local‑browser cleanup, and made stdio benchmark respect AGENTYC_HEADLESS.

Changes in this release

Type	Severity	Summary	CVE
Feature	Medium	Stdio benchmark runs now respect caller's AGENTYC_HEADLESS setting, enabling truly headed benchmark runs when set. Stdio benchmark runs now respect caller's AGENTYC_HEADLESS setting, enabling truly headed benchmark runs when set. Source: llm_adapter@2026-05-22 Confidence: high	—
Feature	Medium	Local browser reuse remains opt-in via AGENTYC_REUSE_LOCAL_BROWSER flag. Local browser reuse remains opt-in via AGENTYC_REUSE_LOCAL_BROWSER flag. Source: llm_adapter@2026-05-22 Confidence: high	—
Performance	Medium	Headed stdio latency reduced to 110.3 ms avg, 244.7 ms p95 compared to headless 138.2 ms avg, 249.1 ms p95. Headed stdio latency reduced to 110.3 ms avg, 244.7 ms p95 compared to headless 138.2 ms avg, 249.1 ms p95. Source: llm_adapter@2026-05-22 Confidence: low	—
Bugfix
Bugfix	Medium	Fixed remaining dense-catalog benchmark harness artifact by checking since_hash against fresh post-action state hash. Fixed remaining dense-catalog benchmark harness artifact by checking since_hash against fresh post-action state hash. Source: llm_adapter@2026-05-22 Confidence: high	—
Bugfix	Medium	Fixed form-control discoverability for unlabeled controls and file inputs across browser_find_elements and browser_get_state. Fixed form-control discoverability for unlabeled controls and file inputs across browser_find_elements and browser_get_state. Source: llm_adapter@2026-05-22 Confidence: high	—
Bugfix	Medium	Fixed local-browser restart cleanup so owned Chrome processes are torn down reliably after stop/reset. Fixed local-browser restart cleanup so owned Chrome processes are torn down reliably after stop/reset. Source: llm_adapter@2026-05-22 Confidence: low	—
Bugfix	Medium	Ensured reliable teardown of owned Chrome processes after local‑browser stop/reset. Ensured reliable teardown of owned Chrome processes after local‑browser stop/reset. Source: granite4.1:30b@2026-05-22-audit Confidence: low	—

Full changelog

Highlights

Fixed the remaining dense-catalog benchmark harness artifact by checking since_hash against a fresh post-action state hash instead of the pre-scroll baseline.
Fixed form-control discoverability for unlabeled controls and file inputs across browser_find_elements and browser_get_state.
Fixed local-browser restart cleanup so owned Chrome processes are torn down reliably after stop/reset.
Stdio benchmark runs now respect the caller's AGENTYC_HEADLESS setting, so headed benchmark runs are truly headed.
Local browser reuse remains opt-in via AGENTYC_REUSE_LOCAL_BROWSER.

Benchmark evidence

| Surface | Metric | Result |
| --- | --- | --- |
| Headless stdio | success / accuracy / precision | 1.0 / 1.0 / 1.0 |
| Headless stdio | avg / p95 latency | 138.2 ms / 249.1 ms |
| Headed stdio | success / accuracy / precision | 1.0 / 1.0 / 1.0 |
| Headed stdio | avg / p95 latency | 110.3 ms / 244.7 ms |
| Headless runtime | import / session init | 271.2 ms / 3468.1 ms |
| Headed runtime | import / session init | 278.5 ms / 3432.8 ms |

All benchmark runs for this release completed with zero failed scenarios and zero failure samples in both headless and headed stdio mode.

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