What is formax-permissions-workflow?

Development guidance for Formax rules that decide whether actions are allowed, denied, or require approval.

Use it when implementing or debugging policy checks, workspace boundaries, approval prompts, permission storage, or the permissions screen.

It helps keep permission checks, approval prompts, saved decisions, and the permissions interface consistent.

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-permissions-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-permissions-workflow/github.svg)](https://agentmods.dev/skills/yusifeng/formax/formax-permissions-workflow)

Your own site

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

Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,142 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	$0.00045	$0.01142
Opus 5.5	$0.00018	$0.00457
Sonnet 5.5	$0.00009	$0.00228
Haiku 4.5	$0.00005	$0.00114

Measured 2mo ago against content hash 125414680bf8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

formax-permissions-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-permissions-workflow/SKILL.md · 99 lines

How it starts

The opening of the file, as written. The whole thing — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Formax permissions / approvals workflow

Goal

Use this skill when changing policy preflight, approval prompts, remember side-effects, or /permissions management.

Read First

docs/contracts/permissions-policy-contract.md
docs/contracts/interactive-input-contract.md
docs/contracts/semantics-contract.md when the change crosses TUI / app-server / Web

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

Code Map

1) Policy preflight (ToolCall -> allow/ask/deny decision)

packages/core/src/tools/executor/policyPreflight.ts: turns ToolCall into a PolicyAction and decides deny / prompt / allow
packages/core/src/tools/executor/policyAction.ts: ToolCall -> PolicyAction mapping
packages/core/src/tools/executor/policyExplain.ts: explain / debug text for decisions
packages/core/src/tools/modules/bash/policy.ts: Bash risk classification

2) Permissions storage + matching (rules & precedence)

packages/core/src/adapters/permissions/permissionsStore.ts: read / write settings and merge precedence
packages/core/src/adapters/permissions/permissionKeys.ts: stable keys / paths for settings
packages/core/src/adapters/permissions/matcher.ts: matcher semantics

3) Approvals (prompt UI + persistence side-effects)

packages/core/src/tools/executor/approvalService.ts: ensureApproved flow and remember writes
UI prompts:
- packages/core/src/components/tool/bashApprovalPrompt.tsx
- packages/core/src/components/tool/fsReadApprovalPrompt.tsx
- packages/core/src/components/tool/fsWriteApprovalPrompt.tsx
- packages/core/src/components/tool/skillApprovalPrompt.tsx
- packages/core/src/components/tool/editApprovalPrompt.tsx
Shared pieces:
- packages/core/src/components/ui/ApprovalHeader.tsx
- packages/core/src/components/ui/ConfirmMenu.tsx

4) /permissions overlay (manage rules + workspace)

packages/core/src/tui/permissions/PermissionsDialog.tsx: state machine + key handling
packages/core/src/tui/permissions/ui.tsx: rendering primitives
packages/core/src/features/repl/controller/ui/overlays.ts: overlay open / close and dismissal messages
Slash command wiring:
- packages/core/src/features/commands/registry.ts
- packages/core/src/screens/repl/createReplCommandRegistry.ts

Read the full file on GitHub · 99 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 · 99 lines · 45 tokens per session scan A 125414680bf8

Subscribe to this mod's changes

formax-permissions-workflow is a skill published in the GitHub repository yusifeng/formax (184 stars, last pushed 3mo ago), licensed MIT. It adds 45 tokens to every session and 1,142 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.

Backend and APIs Security ai assistant cli developer-tools ink

formax-permissions-workflow next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
formax-permissions-workflowyusifeng/formax	Skill	184	3mo ago	MIT	A	45	Codex
printing-press-amendmvanhorn/cli-printing-press	Skill	4.9k	yesterday	MIT	A	222	Claude Code
wikipediax-cmd/x-cmd	Skill	4.7k	6d ago	Apache-2.0	A	49	Claude Code, Codex
cvex-cmd/x-cmd	Skill	4.7k	6d ago	Apache-2.0	A	49	Claude Code, Codex
voidenVoidenHQ/voiden	Skill	1.8k	2d ago	Apache-2.0	A	28	Claude Code, Codex
csharp-dotnetericrisco/rsc-harness	Skill	503	2d ago	MIT	A	89	Claude Code, Codex
firebaseericrisco/rsc-harness	Skill	503	2d ago	MIT	A	77	Claude Code, Codex

formax: Skill for Codex