tools: add repl-block, check-tangle; move existing tools into memex

New tools (projects/<tool>/ — standalone, git-committed):
- repl-block: extract and pipe lisp blocks from org files to the REPL
- check-tangle: tangle + compile in one step, reports errors

Existing tools moved from ~/.opencode/bin/ into memex (survives reinstalls):
- repl, tangle, org-eval, verify-repl

AGENTS.md updated:
- Tool reference table with all 7 tools
- Package reference table for passepartout and cl-tty
- Updated tangle command to use project-local tools

.opencode/commands/ added: check-parens, repl-block, check-tangle commands

projects/AGENTS.md

@@ -125,13 +125,53 @@
   goes to main. If it spans sessions or might be abandoned for a better
   approach, it gets a branch.
 
+## Tools
+
+All tools are standalone scripts in `projects/<tool>/`, committed to the memex.
+They survive upgrades, reinstalls, and new clones.
+
+| Tool | What | Usage |
+|------|------|-------|
+| `check-parens` | Validate paren balance in org lisp blocks (uses SBCL reader) | `projects/check-parens/check-parens org/file.org` |
+| `repl-block` | Extract and send an org lisp block to the daemon REPL | `projects/repl-block/repl-block org/file.org --function foo` |
+| `check-tangle` | Tangle an org file and compile the result in SBCL | `projects/check-tangle/check-tangle org/file.org` |
+| `repl` | Send lisp code to the running daemon | `projects/repl-tool/repl "(+ 1 2)"` |
+| `tangle` | Tangle an org file via Emacs batch | `projects/tangle-tool/tangle org/file.org` |
+| `org-eval` | Evaluate an org src block via Emacs | `projects/org-eval-tool/org-eval org/file.org` |
+| `verify-repl` | Compliance: check defuns have REPL-VERIFIED comments | `projects/verify-repl-tool/verify-repl org/` |
+
+## Package reference
+
+When sending code to the REPL, use the correct `(in-package ...)` form first.
+
+### Passepartout
+
+| Package | When to use |
+|---------|-------------|
+| `:passepartout` | Core system — skills, gates, memory, dispatcher |
+| `:passepartout.channel-tui` | TUI — event handlers, view, state |
+| `<project>-tests` | Test suites — run with `(fiveam:run (intern ...))` |
+
+### cl-tty
+
+| Package | When to use |
+|---------|-------------|
+| `:cl-tty.backend` | Backend protocol — terminal init, draw-text, read-event |
+| `:cl-tty.rendering` | Framebuffer — make-framebuffer, flush-framebuffer |
+| `:cl-tty.input` | Input — key-event, defkeymap, dispatch-key-event |
+| `:cl-tty.layout` | Layout — vbox, hbox, spacer, layout-calculate |
+| `:cl-tty.dialog` | Dialog system — dialog stack, select-dialog |
+| `:cl-tty.select` | Select widget — filter, handle-key |
+| `:cl-tty.slot` | Slot/plugin system |
+| `:cl-tty.markdown` | Markdown rendering |
+
 ## Commands
 
 Tangle a single file:
-  emacs --batch --eval "(progn (require 'org) (find-file \"org/FILE.org\") (org-babel-tangle) (kill-buffer))"
+  projects/tangle-tool/tangle org/FILE.org
 
-Validate structural integrity (org/ source files only):
-  emacs --batch -Q --eval '(progn (find-file "org/FILE.org") (check-parens) (kill-buffer))'
+Or:
+  emacs --batch --eval "(progn (require 'org) (find-file \"org/FILE.org\") (org-babel-tangle) (kill-buffer))"
 
 Run tests (from REPL):
   (fiveam:run (intern "SUITE-NAME" :project-TESTS))
@@ -139,7 +179,6 @@ Run tests (from REPL):
 
 Run tests (SBCL fallback — only when the runtime cannot start):
   sbcl --noinform \
-    --eval '(load (merge-pathnames "quicklisp/setup.lisp" (user-homedir-pathname)))' \
     --eval '(ql:quickload :your-project :silent t)' \
     --eval '(load "lisp/FILE.lisp")' \
     --eval '(fiveam:run (intern "SUITE-NAME" :project-TESTS))' --quit