K Fleet v1.5.0

This minor release adds role-based sub-agent delegation, optional read-only companion agents, post-work skill-usage feedback, progressive entry points, and a bound cross-model routing robustness matrix while keeping eleven core workflow skills.

Highlights

• Replaces specialist-only delegation with kf-delegate-subtask, covering reviewer, verifier, reasoner, explorer, worker, and specialist roles with isolated write ownership.
• Adds the optional kf_reviewer and kf_context_auditor companion agents, with installation instructions alongside the skills.sh workflow.
• Adds kf-report-skill-usage and a sanitized, provenance-aware feedback packet contract.
• Adds progressive references and installation profiles for delegation, verification, and Context maintenance.
• Adds a 24-case multilingual naturalistic robustness corpus and an 18-run, 240-observation blind matrix with evidence binding, stopping contracts, model-specific promotion gates, and tamper checks.
• Keeps the compact catalog-description candidate unpromoted because repeated high-risk contract failures remain model-specific.

Validation

• 11 core skills, 1 feedback skill, and 2 companion agents pass repository structure validation.
• 56 core eval cases, 24 robustness cases, and 7 feedback cases pass corpus validation.
• 18 runs, 240 observations, 240 stopping judgments, and 480 invariant judgments validate with 0 excluded observations.
• All 12 skill directories pass the installed Codex skill validator.
• All 22 Fleet Ledger tests pass.
• GitHub Actions CI run #43 passed on commit dc03554.

See CHANGELOG.md and the routing robustness matrix report for details.