diff --git a/TODO.md b/TODO.md
index 8daca71..acfa7b7 100644
--- a/TODO.md
+++ b/TODO.md
@@ -2397,6 +2397,18 @@ and borrows `pr`'s conventions rather than inventing new ones beside them.
       onto jacquard's resolver — which also validates that the document's
       `id` matches the DID asked for, and which nothing here does — is the
       next step and wants its own change
+- [x] One DID-to-handle resolver, `clients::atproto::handles`, in front of a
+      memo that lives exactly as long as the process. Four listings had their
+      own `buffer_unordered` over `handle_from_did_doc` — `pr list`, `issue
+      list`, `search` and a `view`'s comment thread — differing in the parts
+      nobody meant them to differ in and agreeing that each would re-fetch a
+      document the same invocation had already read. What is cached is only
+      DID to handle, only successes, only up to a cap, and never to disk: a
+      handle is a hint that can be re-registered by somebody else, so seconds
+      is the whole safe window. The other direction is not cached at all —
+      `resolve_handle` decides which account atgc acts as, and `repo
+      checkout` keeps asking the document itself because that handle is
+      written into a checkout's config
 - [x] The module layout is enforced rather than described. Everything in
       `cmd/` is now `pub(super)` (119), `pub(in crate::cmd)` (41) or —
       for the entry points `main.rs` dispatches through, the clap types