friday-cli

A guide to using the Friday command-line tool and web API with a running Friday service. It covers inspecting and changing workspaces, triggering signals, monitoring sessions, and publishing agents or skills.

In plain words
What is it for?
Use it to list or modify workspaces, start workflows, watch sessions, and publish workspace agents or skills.
Why use it?
It gives an agent a way to operate a running Friday service and check what it is doing.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/friday-platform/friday-studio/friday-cli
Any agent
npx skills add friday-platform/friday-studio --skill friday-cli
Clone the repo
git clone --depth 1 https://github.com/friday-platform/friday-studio

Made for: Claude Code, Codex.

Per session 113 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,372 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin unknown 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.

ModelPer sessionOnce invoked
Fable 5 $0.00113 $0.04372
Opus 5 $0.00056 $0.02186
Sonnet 5 $0.00023 $0.00874
Haiku 4.5 $0.00011 $0.00437

Measured 3d ago against content hash 42280aee733c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

friday-cli scanned grade A with 1 finding 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 3d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

description: "Interacts with a running Friday daemon via CLI and HTTP — lists/creates/modifies workspaces, triggers signals, watches sessions, publishes skills and agents. Use whenever you need to poke at a local Friday
packages/system/skills/friday-cli/SKILL.md · 398 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

  1. 3d ago First seen · 398 lines · 113 tokens per session scan A 42280aee733c

Subscribe to this mod's changes

friday-cli is a skill published in the GitHub repository friday-platform/friday-studio (101 stars, last pushed 4d ago), with no licence file. It adds 113 tokens to every session and 4,372 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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