docs: add changesets for #52/#53 and update card docs for tag commands

.cards/cli.md

@@ -32,6 +32,7 @@ ocas verify <hash>              # check integrity + schema validity
 ocas refs <hash>                # list direct ocas_ref edges
 ocas walk <hash>                # recursive DAG traversal
 ocas list --type <hash|name>    # list nodes by type
+ocas list --tag <expr>          # filter by tag
 ocas list-schema                # list all schema hashes
 ocas list-meta                  # list meta-schema hashes
 ocas gc                         # garbage collection
@@ -40,14 +41,22 @@ ocas gc                         # garbage collection
 ### [[Variable]] Management
 
 ```bash
-ocas var set <name> <hash> [--tag key:value] [--tag label]
+ocas var set <name> <hash>
 ocas var get <name> --schema <hash>
 ocas var delete <name> [--schema <hash>]
-ocas var list [prefix] [--schema <hash>] [--tag ...]
-ocas var tag <name> --schema <hash> <operations...>
+ocas var list [prefix] [--schema <hash>]
 ocas var history <name> [--schema <hash>]
 ```
 
+### Tagging
+
+```bash
+ocas tag <target> <tag>...      # attach tags (key:value) or labels (bare)
+ocas untag <target> <tag>...    # remove tags by key or label
+```
+
+Tags apply to any target (variable or node). `ocas get` and `ocas var get` include tag info in output.
+
 ### [[Render System|Template & Render]]
 
 ```bash

.cards/variable.md

@@ -41,18 +41,22 @@ The `@scope` prefix ensures variable names are visually distinct from 13-charact
 ## Operations
 
 ```bash
-ocas var set <name> <hash> [--tag env:prod] [--tag pinned]
+ocas var set <name> <hash>
 ocas var get <name> --schema <hash>
 ocas var delete <name> [--schema <hash>]
-ocas var list [prefix] [--schema <hash>] [--tag env:prod]
-ocas var tag <name> --schema <hash> status:active pinned :archived
+ocas var list [prefix] [--schema <hash>]
 ```
 
-`var set` is an upsert — creates or updates. Name prefix filtering replaces the old scope concept: `var list myapp/` returns all variables under `myapp/`.
+`var set` is an upsert — creates or updates. Name prefix filtering replaces the old scope concept: `var list myapp/` returns all variables under `myapp/`. Tagging is now handled by the top-level `ocas tag` / `ocas untag` commands (see [[CLI]]).
 
 ## Tags and Labels
 
-Tags and labels share a unified command (`var tag`):
+Tags and labels are managed via top-level `ocas tag` / `ocas untag` commands:
+
+```bash
+ocas tag <target> env:prod pinned    # set tag + label
+ocas untag <target> env pinned       # remove by key/label
+```
 
 - **Tags** are `key:value` pairs — same-key mutually exclusive (e.g. `env:prod` replaces `env:dev`)
 - **Labels** are bare strings (e.g. `pinned`, `important`)

.changeset/issue-52-tag-untag-commands.md

@@ -0,0 +1,10 @@
+---
+"@ocas/core": minor
+"@ocas/cli": minor
+---
+
+Top-level tag/untag commands (#52)
+
+- New `@ocas/output/tag` and `@ocas/output/untag` output schemas in core
+- New top-level `ocas tag <target> <tag>...` and `ocas untag <target> <tag>...` commands
+- Removed `ocas var tag` subcommand — tagging is now via top-level commands

.changeset/issue-53-get-shows-tags.md

@@ -0,0 +1,9 @@
+---
+"@ocas/core": minor
+"@ocas/cli": minor
+---
+
+get/var get now show tag info (#53)
+
+- Extended `@ocas/output/get` and `@ocas/output/var-get` schemas to include tags
+- `ocas get` and `ocas var get` output now includes tag information