xstack
My personal collection of Codex skills and workflows, adapted from pstack and adjusted to my preferences.
Skills
| Skill | Purpose |
|---|---|
| x-mode | Personal workflow routing and reply guidance. Applies unslop to prose and technical-writing to technical artifacts. |
| technical-writing | Write docs, RFCs, READMEs, PR descriptions, and commit messages. |
| unslop | Edit prose to remove filler and AI writing patterns. |
| sharpen | Deepen a task and rewrite its prompt without expanding its scope. |
How to use
The skills are linked locally from ~/.agents/skills to this checkout.
Invoke them directly in Codex:
$x-mode help me with this task
$technical-writing draft a README for this project
$unslop edit this text
$sharpen improve this task prompt
Edits to these skills are available through the links without copying or
committing. Codex detects changes automatically; restart it if an update does
not appear. Link any new skill folder into ~/.agents/skills to make it available.
This setup loads local skills directly, rather than installing the plugin bundle.
Attribution and MIT license
The technical-writing and unslop skills, plus x-mode's prose routing and Writing the reply section, come from Lauren Tan's pstack. I adjust the skills and Codex metadata to my preferences.
The sharpen skill also comes from pstack. Its instructions are unchanged; only invocation metadata is adapted for Codex.
The upstream MIT notice below applies to the copied and adapted pstack material. Include it when distributing that material, including individual skills.
MIT License
Copyright (c) 2026 Lauren Tan
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.