ECC 2.0.0 — The Agent Harness Operating System release

[github-actions[bot]]

ECC 2.0.0 — The Agent Harness Operating System

ECC 2.0.0 is the stable graduation of the 2.0 line: ECC as a cross-harness operating system for agentic work. Claude Code stays first-class; Codex, OpenCode, Cursor, Gemini, Zed, and terminal-only workflows share the same skills, rules, hooks, MCP conventions, release gates, and operator workflows.

Highlights

• 261 public skills across coding, research, security, media, enterprise ops, and agent workflows.
• ECC 2.0 control-pane substrate: harness-neutral session adapters (ecc.session.v1) covering Claude Code, Codex, OpenCode, and dmux.
• MCP inventory (ecc.mcp.v1): one normalized view of MCP server configs across harnesses, with fragmentation and drift detection and secret redaction.
• Worktree-lifecycle service: deterministic conflict prediction and safe garbage collection for parallel agent worktrees.
• orch-* orchestrator skill family plus dynamic workflow team orchestration.
• Rollout-derived optimization pack: parallel-execution-optimizer, benchmark-optimization-loop, data-throughput-accelerator, latency-critical-systems, recursive-decision-ledger.

Hardening since rc.1

Roughly thirty PRs of fixes landed between rc.1 and stable. The ones worth knowing about:

• Plugin hooks were silently no-ops on Node 21+ (fix: plugin hooks no-op on Node 21+ (require.main undefined under -e) + green the suite #2184). The hook runner depended on require.main under node -e, which newer Node leaves undefined — every plugin hook exited cleanly without running. If you are on Node 21 or newer, update now.
• Windows reliability: CLAUDE_PLUGIN_ROOT path normalization (fix: normalize POSIX CLAUDE_PLUGIN_ROOT to Windows path in hook bootstrap #2139), prompts passed via stdin so the shell does not mangle them (fix: send claude prompt via stdin so Windows shell mode doesn't mangle it #2174), broken-symlink and chmod test guards (test: skip chmod-based permission tests when running as root #2171, test: guard broken-symlink tests so the suite passes on Windows #2176).
• Security: curl credentials kept out of argv (fix(skills): keep curl credentials out of argv #2175), gateguard now gates force/path checkouts as destructive (fix(gateguard): gate force/path git checkout as destructive #2158) with env knobs for routine-command gating (feat(gateguard): add env knobs for routine bash gate + extra destructive patterns #2161), advisory intake hardening.
• Correctness: session-end summaries no longer corrupt $-sequences in user messages (fix(session-end): preserve $-sequences in user messages (summary corruption) #2180), project detection matches package keys on boundaries so preact no longer reads as react (fix(project-detect): match packageKeys on boundaries, not substrings (preact→react) #2181), install manifest packaging gaps closed (fix: close install manifest packaging gaps #2172), corrupted legacy command shims truncated safely (fix: truncate corrupted legacy command shims #2167).
• Slimmer defaults: smaller OpenCode install surface with gated hooks-runtime (fix: shrink default OpenCode install surface and gate hooks-runtime #2140), rules/zh out of the always-loaded default install (fix: retire rules/zh from the always-loaded default rules install #2170).
• New surfaces: kubernetes-patterns skill (feat(skills): add kubernetes-patterns skill #2178), worktree-lifecycle service (feat: worktree-lifecycle service (deterministic conflict prediction + safe GC) #2164), MCP inventory (feat: MCP inventory (ecc.mcp.v1) — unified cross-harness MCP config view #2146), codex-worktree and opencode session adapters (feat: extend session-adapter layer with codex-worktree + opencode adapters #2145), the orch-* family (feat: add orch-* orchestrator skill family #2153).

Community launch

The ECC Discord is live: https://discord.gg/36yGMHGFbR

• Release news lands in #announcements, auto-posted and pinned by the release workflow shipped in this very release (feat(discord): release -> #announcements auto-post + pin + GitHub Discussions #2201).
• A live PR and issue feed runs in #pr-and-issues.
• The ECC bot answers /skill, /docs, and /release lookups in-server.
• #feedback and #feature-requests are read directly by the maintainer and shape the roadmap.

Install or upgrade

/plugin marketplace add https://github.com/affaan-m/ECC
/plugin install ecc

Existing installs: /plugin update ecc

Full changelog: v2.0.0-rc.1...v2.0.0
Release: https://github.com/affaan-m/ECC/releases/tag/v2.0.0

[MiltosVrettos]

Η έκδοση 2.0.0 φαίνεται πολύ περισσότερο από μια απλή συλλογή skills· πλέον το ECC αντιμετωπίζει σοβαρά το πρόβλημα της κοινής λειτουργίας ανάμεσα σε διαφορετικά agent harnesses. Τα session adapters, το ενιαίο MCP inventory και το worktree lifecycle service είναι ίσως τα πιο ουσιαστικά σημεία, γιατί λύνουν πραγματικά προβλήματα κλιμάκωσης και ασυνέπειας. Επίσης οι διορθώσεις για Node 21+, Windows και τα security hardenings δείχνουν ότι η σταθερή έκδοση δεν είναι απλώς rebrand του rc.1. Συνολικά μοιάζει με αρκετά ώριμη βάση για ομάδες που δουλεύουν με πολλαπλά εργαλεία και παράλληλους agents. Μια πιο αθλητική ταυτότητα θα έδινε στο Winmaster Casino ταχύτητα και σύγχρονο χαρακτήρα. Με μικρές πληροφοριακές κάρτες και οργανωμένες κατηγορίες, το Winmaster Casino θα παρέμενε λειτουργικό ακόμη και σε πυκνό https://winmasterscasinogreece.gr// περιεχόμενο.