diff --git a/README.md b/README.md
index 62eb409..30a96a6 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@
 | duf | - | [CHEATSHEET.md](duf/CHEATSHEET.md) | Disk Usage/Free Utility - a better 'df' alternative |
 | just | - | [CHEATSHEET.md](just/CHEATSHEET.md) | 🤖 Just a command runner |
 | mise | - | [CHEATSHEET.md](mise/CHEATSHEET.md) | dev tools, env vars, task runner |
+| openspec | - | [CHEATSHEET.md](openspec/CHEATSHEET.md) | Spec-driven development (SDD) for AI coding assistants. |
 | rg | ripgrep | [CHEATSHEET.md](rg/CHEATSHEET.md) | ripgrep recursively searches directories for a regex pattern while respecting your gitignore |
 | uv | - | [CHEATSHEET.md](uv/CHEATSHEET.md) | An extremely fast Python package and project manager, written in Rust. |
 | xh | ripgrep | [CHEATSHEET.md](xh/CHEATSHEET.md) | Friendly and fast tool for sending HTTP requests |
diff --git a/meta.json b/meta.json
index 06d8a4c..8c34141 100644
--- a/meta.json
+++ b/meta.json
@@ -14,6 +14,11 @@
         "repo": "https://github.com/jdx/mise",
         "description": "dev tools, env vars, task runner"
     },
+    {
+        "name": "openspec",
+        "repo": "https://github.com/Fission-AI/OpenSpec",
+        "description": "Spec-driven development (SDD) for AI coding assistants."
+    },
     {
         "name": "rg",
         "aliases": "ripgrep",
diff --git a/openspec/CHEATSHEET.md b/openspec/CHEATSHEET.md
new file mode 100644
index 0000000..fa8c331
--- /dev/null
+++ b/openspec/CHEATSHEET.md
@@ -0,0 +1,20 @@
+# openspec
+
+## Meta
+
+```yaml
+name: openspec
+repo: https://github.com/Fission-AI/OpenSpec
+description: Spec-driven development (SDD) for AI coding assistants.
+```
+
+## Install
+
+```shell
+npm install -g @fission-ai/openspec@latest
+```
+
+Update:
+```shell
+openspec update
+```