League, which builds software for health plans and providers, went company-wide on Claude. Anthropic's Q&A says roughly 98% of League's code is AI-authored and Claude adoption reached 98%, up from 80% at rollout.
Reported outcomes
Outcomes are reported exactly as stated by the source; we have not independently audited them.
How it works
- Company-wide Claude Enterprise rollout.
- Engineers delegate most code authoring to AI with human review.
Risks & compliance
- AI-written code or fixes need review before production
- Access to production systems and logs
- Vendor-published results; not independently audited
- Regulated healthcare data in products
Tools mentioned & how to build it
Disclosure: Some links may earn us a commission; it never affects grades. Tools are listed by fit to this case, never by payment.
Tools mentioned
- Claude & Claude Code (Anthropic)
Anthropic's models, Claude Code and enterprise plans.
Build a version yourself
- n8n
Open-source workflow automation with AI agent nodes; self-host or cloud. - Relevance AI
Build an 'AI workforce' of agents, e.g. BDR agents that research and book meetings.
Sources
“yet roughly 98% of League's code is AI-authored.”Case Study: League
Grade rationale: Named organization with a quantified outcome from the vendor or the organization itself (self-reported). Automated check on Oct 17, 2026: 1/1 quotes and 2/2 outcome claims matched the source. Compiled by the Agent Casefile research desk (AI-assisted; see methodology). Spot an error? Request a correction.
