What is formax-slash-command-workflow?

A workflow for adding or changing slash commands, which are commands such as /permissions or /hooks entered inside a coding agent. It covers how commands are found, run, displayed, and passed into the next model turn.

Use it to implement or update Formax slash commands, command discovery and dispatch, overlay dismissal messages, and command output handling.

It reduces mistakes where a command works internally but shows the wrong message, dismisses an overlay incorrectly, or sends the wrong information to the model.

How yusifeng/formax configures Codex

Reuse

Borrowing it

Nothing to install: this file belongs to yusifeng/formax. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/yusifeng/formax/main/.codex/skills/formax-slash-command-workflow/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/yusifeng/formax

Made for: Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/yusifeng/formax/formax-slash-command-workflow/github.svg)](https://agentmods.dev/skills/yusifeng/formax/formax-slash-command-workflow)

Your own site

<a href="https://agentmods.dev/skills/yusifeng/formax/formax-slash-command-workflow"><img src="https://agentmods.dev/badge/skills/yusifeng/formax/formax-slash-command-workflow/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/yusifeng/formax/formax-slash-command-workflow"><img src="https://agentmods.dev/badge/skills/yusifeng/formax/formax-slash-command-workflow.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 927 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00051	$0.00927
Opus 5.5	$0.00020	$0.00371
Sonnet 5.5	$0.00010	$0.00185
Haiku 4.5	$0.00005	$0.00093

Measured 2mo ago against content hash e86dddd43858, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

formax-slash-command-workflow scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.codex/skills/formax-slash-command-workflow/SKILL.md · 73 lines

How it starts

The opening of the file, as written. The whole thing — 73 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Formax slash command workflow

Goal

Use this skill when changing slash command discovery, dispatch, overlay dismissal output, or next-turn injection behavior.

Read First

docs/contracts/slash-command-contract.md
docs/contracts/semantics-contract.md when command behavior crosses canonical UI messages or routing
docs/contracts/config-settings-contract.md when the change touches /config

These docs are canonical. If stable behavior changes, update them before or with code.

Code Map

1) Command discovery + dispatch

packages/core/src/features/commands/registry.ts: command list/suggest/dispatch wiring
packages/core/src/features/commands/CommandStore.ts: disk scanning + precedence (project overrides user)
packages/core/src/features/semantics/core/commandRouting.ts: exact /clear / /compact and command-dispatch routing boundary

2) Command result contract (UI vs model)

packages/core/src/features/commands/contracts.ts: UiEffect / UiMessage / ModelEffect shapes
packages/core/src/features/commands/adapter.ts: maps command execution output → CommandResult
packages/core/src/features/repl/controller/send/send.ts: consumed slash handling, local_async, and injected-block plumbing

3) Overlay dismissal “subline output”

packages/core/src/features/repl/controller/ui/overlays.ts: overlay open/close + append “dismissed” sublines

4) REPL message plumbing + rendering

packages/core/src/features/repl/controller/send/send.ts: applies UiEffect.appendMessages to Msg
packages/core/src/screens/REPL.tsx: render msg.ui.kind === 'command_subline' as ⎿ ... (no ⏺)
packages/core/src/screens/REPL.slashSuggestions.test.tsx: duplicate command selection / preferredSlashSpecId

High-Signal Patterns

Pattern A: one-line overlay dismissal
- append a single assistant Msg with ui.kind='command_subline'
- keep copy stable unless the user explicitly requests copy changes
Pattern B: multi-line local output
- split output into multiple command_subline rows
- this is UI only; model injection remains separately controlled
Pattern C: inject-but-don't-spam
- when a command needs to inform the model, keep UI output minimal and preserve recordForNextTurn / injected-block behavior separately

Read the full file on GitHub · 73 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2mo ago First seen · 73 lines · 51 tokens per session scan A e86dddd43858

Subscribe to this mod's changes

formax-slash-command-workflow is a skill published in the GitHub repository yusifeng/formax (184 stars, last pushed 3mo ago), licensed MIT. It adds 51 tokens to every session and 927 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

ai assistant cli developer-tools ink

formax-slash-command-workflow next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
formax-slash-command-workflowyusifeng/formax	Skill	184	3mo ago	MIT	A	51	Codex
unbrokerKevRojo/Dulus	Skill	508	3d ago	GPL-3.0	A	15	Claude Code, Codex
obsidian-basesKevRojo/Dulus	Skill	508	3d ago	GPL-3.0	A	63	Claude Code, Codex
json-canvasKevRojo/Dulus	Skill	508	3d ago	GPL-3.0	A	54	Claude Code, Codex
obsidian-markdownKevRojo/Dulus	Skill	508	3d ago	GPL-3.0	A	105	Claude Code, Codex
obsidian-cliKevRojo/Dulus	Skill	508	3d ago	GPL-3.0	A	102	Claude Code, Codex
defuddleKevRojo/Dulus	Skill	508	3d ago	GPL-3.0	A	74	Claude Code, Codex

formax: Skill for Codex