skill-077

skill-077 is a skill for Claude Code, Codex from legendtkl/agentic-skill-router. It costs 75 tokens per session (6,242 once invoked), scanned A, original, MIT.

A guide to Fullstory’s User Properties API, which lets web applications add details such as plan, preferences, or email to a user profile. It explains how to update both anonymous and identified users.

In plain words
What is it for?
Use it when sending customer or CRM details to Fullstory, enriching anonymous visitors, tracking profile changes, or building user segments and searches.
Why use it?
It helps developers avoid confusing user identification with adding user details, and prevents mistakes with property names, data types, and updates.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Use it when sending customer or CRM details to Fullstory, enriching anonymous visitors, tracking profile changes, or building user segments and searches.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/legendtkl/agentic-skill-router/skill-077
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.

Any agent
npx skills add legendtkl/agentic-skill-router --skill skill-077
Clone the repo
git clone --depth 1 https://github.com/legendtkl/agentic-skill-router

Made for: Claude Code, 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.

agentmods badge for skill-077

README.md
[![agentmods](https://agentmods.dev/badge/skills/legendtkl/agentic-skill-router/skill-077/github.svg)](https://agentmods.dev/skills/legendtkl/agentic-skill-router/skill-077)
Your own site
<a href="https://agentmods.dev/skills/legendtkl/agentic-skill-router/skill-077"><img src="https://agentmods.dev/badge/skills/legendtkl/agentic-skill-router/skill-077/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.

agentmods 80×15 button for skill-077

Your own site · 80×15
<a href="https://agentmods.dev/skills/legendtkl/agentic-skill-router/skill-077"><img src="https://agentmods.dev/badge/skills/legendtkl/agentic-skill-router/skill-077.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 75 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,242 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.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00075 $0.06242
Opus 5.5 $0.00030 $0.02497
Sonnet 5.5 $0.00015 $0.01248
Haiku 4.5 $0.00007 $0.00624

Measured 2mo ago against content hash cf5c29368a23, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skill-077 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.

experiments/dci-compare/skillrouter-skills/skill-077/SKILL.md · 1,013 lines

How it starts

The opening of the file, as written. The whole thing — 1,013 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Fullstory User Properties API

Overview

Fullstory's User Properties API allows developers to capture custom user data that enriches user profiles for search, filtering, segmentation, and analytics. Unlike setIdentity which links a session to a known user ID, setProperties with type: 'user' lets you add or update attributes about any user - including anonymous users.

Important: Every new browser/device starts as an anonymous user, tracked via the fs_uid first-party cookie (1-year expiry). You can set user properties on anonymous users before they ever identify. These properties persist across sessions and transfer when/if the user later identifies via setIdentity.

Key use cases:

  • Anonymous User Enrichment: Add attributes before the user logs in (referral source, landing page, visitor type)
  • Progressive Profiling: Update properties as you learn more about the user
  • Subscription/Plan Changes: Track plan upgrades without re-identifying
  • Preference Tracking: Store user settings and preferences
  • CRM Sync: Mirror key CRM fields in Fullstory

Core Concepts

setIdentity vs setProperties

API Purpose When to Use Works for Anonymous?
setIdentity Link session to a known user ID + optional initial properties Login, authentication No (converts anonymous → identified)
setProperties (user) Add/update properties for the current user Anytime - works for anonymous AND identified users Yes ✅

Key Distinction: Use setIdentity when you need to link a session to a known user (requires a uid). Use setProperties when you just want to add or update attributes about the current user - this works for both identified AND anonymous users.

Read the full file on GitHub · 1,013 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.

  1. 2mo ago First seen · 1,013 lines · 75 tokens per session scan A cf5c29368a23

Subscribe to this mod's changes

skill-077 is a skill published in the GitHub repository legendtkl/agentic-skill-router (8 stars, last pushed 5mo ago), licensed MIT. It adds 75 tokens to every session and 6,242 once invoked, about $0.0003 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 2026-09-03.

Related

skill-077 compared with skills from other repositories

skill-077 next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
skill-077legendtkl/agentic-skill-routerSkill85mo agoMITA75Claude Code, Codex
imagegenopenai/codexSkill133kyesterdayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill99kyesterdayApache-2.0A19Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79k4d agoMITA200Claude Code, Codex
systematic-debuggingobra/superpowersSkill313k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143kyesterdayMITA95Claude Code
next-partial-prefetching-adoptionvercel/next.jsSkill143kyesterdayMITA103Claude Code