This release adds 2 notable features for engineering teams evaluating rollout.
✓ No known CVEs patched in this version
Topics
+2 more
Summary
AI summaryImproved reliability of session persistence and hook lifecycle across integrated code assistants.
Changes in this release
| Type | Severity | Summary | CVE |
|---|---|---|---|
| Feature | Low |
Expands skills and command coverage for harness performance work. Expands skills and command coverage for harness performance work. Source: llm_adapter@2026-06-10 Confidence: high |
— |
| Bugfix | Medium |
Fixes session persistence and hook lifecycle issues. Fixes session persistence and hook lifecycle issues. Source: llm_adapter@2026-06-10 Confidence: low |
— |
| Refactor | Low |
Improves release-note generation and changelog hygiene. Improves release-note generation and changelog hygiene. Source: llm_adapter@2026-06-10 Confidence: high |
— |
Full changelog
ECC 2.0.0
What This Release Focuses On
- Harness reliability and hook stability across Claude Code, Cursor, OpenCode, and Codex
- Stronger eval-driven workflows and quality gates
- Better operator UX for autonomous loop execution
Notable Changes
- Session persistence and hook lifecycle fixes
- Expanded skills and command coverage for harness performance work
- Improved release-note generation and changelog hygiene
Notes
- npm package:
ecc-universal - Claude marketplace/plugin identifier:
ecc@ecc - For migration tips and compatibility notes, see README and CHANGELOG.
New Contributors
- @Alex-Yanggg made their first contribution in https://github.com/affaan-m/ECC/pull/1291
- @KeWang0622 made their first contribution in https://github.com/affaan-m/ECC/pull/1385
- @YASoftwareDev made their first contribution in https://github.com/affaan-m/ECC/pull/1383
- @gnpthbalaji made their first contribution in https://github.com/affaan-m/ECC/pull/1363
- @Anish29801 made their first contribution in https://github.com/affaan-m/ECC/pull/1377
- @ozoz5 made their first contribution in https://github.com/affaan-m/ECC/pull/1367
- @S1lverline made their first contribution in https://github.com/affaan-m/ECC/pull/1432
- @livlign made their first contribution in https://github.com/affaan-m/ECC/pull/1532
- @ShunmeiCho made their first contribution in https://github.com/affaan-m/ECC/pull/1531
- @vishnu-UH made their first contribution in https://github.com/affaan-m/ECC/pull/1536
- @suusuu0927 made their first contribution in https://github.com/affaan-m/ECC/pull/1539
- @gaurav0107 made their first contribution in https://github.com/affaan-m/ECC/pull/1490
- @ratorin made their first contribution in https://github.com/affaan-m/ECC/pull/1495
- @zmzhong1 made their first contribution in https://github.com/affaan-m/ECC/pull/1522
- @m0ver made their first contribution in https://github.com/affaan-m/ECC/pull/1336
- @trmquang93 made their first contribution in https://github.com/affaan-m/ECC/pull/1356
- @billlevine made their first contribution in https://github.com/affaan-m/ECC/pull/1317
- @Alexsky347 made their first contribution in https://github.com/affaan-m/ECC/pull/1803
- @arsallls made their first contribution in https://github.com/affaan-m/ECC/pull/1838
- @Jamkris made their first contribution in https://github.com/affaan-m/ECC/pull/1843
- @girish-kanjiyani7 made their first contribution in https://github.com/affaan-m/ECC/pull/1841
- @CodeQC made their first contribution in https://github.com/affaan-m/ECC/pull/1925
- @kpahel made their first contribution in https://github.com/affaan-m/ECC/pull/1944
- @mturac made their first contribution in https://github.com/affaan-m/ECC/pull/1945
- @Utakata made their first contribution in https://github.com/affaan-m/ECC/pull/1953
- @DoctorNasa made their first contribution in https://github.com/affaan-m/ECC/pull/1967
- @suranyami made their first contribution in https://github.com/affaan-m/ECC/pull/1972
- @tian-pengfei made their first contribution in https://github.com/affaan-m/ECC/pull/1973
- @qizwiz made their first contribution in https://github.com/affaan-m/ECC/pull/1976
- @wd041216-bit made their first contribution in https://github.com/affaan-m/ECC/pull/1977
- @karnavpargi made their first contribution in https://github.com/affaan-m/ECC/pull/1986
- @mhd-ghaith-abtah made their first contribution in https://github.com/affaan-m/ECC/pull/2006
- @luyua9 made their first contribution in https://github.com/affaan-m/ECC/pull/2011
- @lastrei made their first contribution in https://github.com/affaan-m/ECC/pull/2050
- @pleasedodisturb made their first contribution in https://github.com/affaan-m/ECC/pull/2034
- @t0kubetsu made their first contribution in https://github.com/affaan-m/ECC/pull/2033
- @qMiko318 made their first contribution in https://github.com/affaan-m/ECC/pull/2054
- @hjkim0905 made their first contribution in https://github.com/affaan-m/ECC/pull/2048
- @ndesv21 made their first contribution in https://github.com/affaan-m/ECC/pull/2052
- @cetoing made their first contribution in https://github.com/affaan-m/ECC/pull/2031
- @michielhdoteth made their first contribution in https://github.com/affaan-m/ECC/pull/2039
- @luisllaver made their first contribution in https://github.com/affaan-m/ECC/pull/2026
- @flitzrrr made their first contribution in https://github.com/affaan-m/ECC/pull/2029
- @zanni098 made their first contribution in https://github.com/affaan-m/ECC/pull/2062
- @bymle made their first contribution in https://github.com/affaan-m/ECC/pull/2181
- @sahilaghara1911 made their first contribution in https://github.com/affaan-m/ECC/pull/2178
- @JOhnsonKC201 made their first contribution in https://github.com/affaan-m/ECC/pull/2176
- @Kumario1 made their first contribution in https://github.com/affaan-m/ECC/pull/2175
- @skausage-ops made their first contribution in https://github.com/affaan-m/ECC/pull/2174
- @konstapukarifastnetfi made their first contribution in https://github.com/affaan-m/ECC/pull/2172
- @Kutcher1945 made their first contribution in https://github.com/affaan-m/ECC/pull/2147
- @mvanhorn made their first contribution in https://github.com/affaan-m/ECC/pull/2140
- @nyxst4ck made their first contribution in https://github.com/affaan-m/ECC/pull/2130
- @mapleLeafOfficial made their first contribution in https://github.com/affaan-m/ECC/pull/2127
- @JasonOoPZ made their first contribution in https://github.com/affaan-m/ECC/pull/2126
- @lynuxis2026-pixel made their first contribution in https://github.com/affaan-m/ECC/pull/2125
- @ahnineamine made their first contribution in https://github.com/affaan-m/ECC/pull/2121
- @satoshi-takano-bloom made their first contribution in https://github.com/affaan-m/ECC/pull/2114
- @Zhao73 made their first contribution in https://github.com/affaan-m/ECC/pull/2106
- @thanhtaivtt made their first contribution in https://github.com/affaan-m/ECC/pull/2101
- @linsywu made their first contribution in https://github.com/affaan-m/ECC/pull/2098
- @SantiagoSiordia made their first contribution in https://github.com/affaan-m/ECC/pull/2095
- @Andrea-Cavallo made their first contribution in https://github.com/affaan-m/ECC/pull/2092
- @dugisan3rd made their first contribution in https://github.com/affaan-m/ECC/pull/2091
- @NormallyGaussian made their first contribution in https://github.com/affaan-m/ECC/pull/2085
- @adnasal made their first contribution in https://github.com/affaan-m/ECC/pull/2077
- @evanclan made their first contribution in https://github.com/affaan-m/ECC/pull/2068
- @TomCruiseTorpedo made their first contribution in https://github.com/affaan-m/ECC/pull/2066
- @fxdv made their first contribution in https://github.com/affaan-m/ECC/pull/2059
- @K3RAE made their first contribution in https://github.com/affaan-m/ECC/pull/2129
- @elmochilyas made their first contribution in https://github.com/affaan-m/ECC/pull/2122
- @Bortlesboat made their first contribution in https://github.com/affaan-m/ECC/pull/2132
- @dMillerus made their first contribution in https://github.com/affaan-m/ECC/pull/2153
Full Changelog: https://github.com/affaan-m/ECC/compare/v1.10.0...v2.0.0
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About everything-claude-code
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
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