Normalized Telegram record
Parallel coding agents make large migrations tractable
A large Bun pull request shows many independent agents working against explicit file boundaries and a common test contract.
Signal contract
A large Bun pull request shows many independent agents working against explicit file boundaries and a common test contract. Parallelism creates leverage only when tasks are separable, ownership is explicit, integration is deterministic, and tests protect the shared boundary. Novelty: notable. Verification: source-inspected. This New Runtime record is an evidence-linked retrieval unit.
Source ledger
Publishable sources attached to this record.
| # | Source | Role | Public status |
|---|---|---|---|
| 1 | github.comrepo | primary receipt | source_urls |
| 2 | code.claude.comsource | supporting receipt | source_urls |
Observation
A large Bun pull request shows many independent agents working against explicit file boundaries and a common test contract.
Why it matters
Parallelism creates leverage only when tasks are separable, ownership is explicit, integration is deterministic, and tests protect the shared boundary.
Entities
Bun, Claude Code
Provenance
This public record is an English normalization of QWG AI Telegram message 2637. The complete original-language post remains the canonical raw message.