From 0a1d924603be83141ebbb9c4ab0e712d8415c3f8 Mon Sep 17 00:00:00 2001
From: Richard Gibson <richard.gibson@gmail.com>
Date: Tue, 1 Oct 2024 16:08:29 -0400
Subject: [PATCH] docs(SwingSet): Document the "R"/"_" reachability flag in
 kref-to-vref c-list entries

---
 packages/SwingSet/docs/c-lists.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/SwingSet/docs/c-lists.md b/packages/SwingSet/docs/c-lists.md
index 1e44b5fac3d..c08548b2bd1 100644
--- a/packages/SwingSet/docs/c-lists.md
+++ b/packages/SwingSet/docs/c-lists.md
@@ -16,7 +16,7 @@ The SwingSet kernel supports a number of vats, in a star configuration. At the b
 | kp8  | p-3      |
 | kd4  | d-4      |
 
-The c-list is currently stored as `kvStore` entries in the kernel's swing-store DB. Each c-list entry gets two kvStore keys, one for each direction. The kref-to-vref mapping gets a key of `${vatID}.c.${kref}`, while the vref-to-kref mapping gets `${vatID}.c.${vref}`. The value is the vref or kref, respectively. (The c-list is also used to track the reachable/recognizable status of the vat's import, so the krev-to-vref direction has additional flag characters in its value).
+The c-list is currently stored as `kvStore` entries in the kernel's swing-store DB. Each c-list entry gets two kvStore keys, one for each direction. The kref-to-vref mapping gets a key of `${vatID}.c.${kref}` and a value of `${flag} ${vref}` (where the flag is `R` for reachable references and `_` for merely recognizable ones, cf. [Garbage Collection in SwingSet](./garbage-collection.md)), while the vref-to-kref mapping gets a key of `${vatID}.c.${vref}` and a value of `${kref}`.
 
 Object krefs (`koNN`) point into the kernel object table. Each such object is exported by exactly one vat, and might be imported by one or more other vats.