Cursor gives agents strong local context inside the editor. That is valuable. It helps the model find files, APIs, symbols, and nearby patterns. But IDE context and repository memory are different things.
IDE context answers: what does the code look like right now? Repository memory answers: why did this code become this way, what was deliberately changed, what was rejected, and what should future agents preserve?
flowchart LR
A[Cursor IDE context] --> B[Fast implementation]
B --> C[Git diff]
C --> D{Enough for future agents?}
D -- No --> E[Nool repository memory]
E --> F[findings]
E --> G[blast radius]
E --> H[thread history]
E --> I[solidified proposal]
A Cursor-only workflow often uses project rules, markdown notes, and chat history. Those are useful sidecars, but they are not operational state. They can drift away from what actually landed. Nool puts the durable record in the repository workflow: `nool announce intent --intent "..."` before work, `nool debug blast-radius <path> --compact` after edits, `nool learn --about <topic> --content "..." --kind finding` for reusable lessons, and `nool propose --all --intent "..." --fast` before solidification.
For concurrent teams, add `nool discover conflicts --compact` before implementation and `nool thread show <name> --full` when resuming a longer effort. These commands are not decoration. They give future Cursor sessions a structured memory source that is not trapped in one editor process.
Use Cursor for code authoring. Use Git for source transport. Use Nool to preserve the reasoning and impact boundaries that make future AI edits safer. That split keeps the editor fast while making the repository governable across sessions, agents, and humans.
This also changes how teams debug bad AI edits. Instead of asking "what did Cursor do?", ask "what intent did we announce, what findings existed, what blast radius did Nool report, and what proposal did we solidify?" Those questions are answerable from the ledger. They are not reliably answerable from an IDE chat pane after a week of work.
That makes repository memory a portability layer. If tomorrow's task moves from Cursor to Codex, the new agent can start from Nool history instead of inheriting only editor-local context.