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.
npx skills add jonathimer/devmarketing-skills --skill developer-signup-flowgit clone --depth 1 https://github.com/jonathimer/devmarketing-skillsWrote 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.
[](https://agentmods.dev/skills/jonathimer/devmarketing-skills/developer-signup-flow)<a href="https://agentmods.dev/skills/jonathimer/devmarketing-skills/developer-signup-flow"><img src="https://agentmods.dev/badge/skills/jonathimer/devmarketing-skills/developer-signup-flow/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.
<a href="https://agentmods.dev/skills/jonathimer/devmarketing-skills/developer-signup-flow"><img src="https://agentmods.dev/badge/skills/jonathimer/devmarketing-skills/developer-signup-flow.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00054 | $0.02590 |
| Opus 5.5 | $0.00022 | $0.01036 |
| Sonnet 5.5 | $0.00011 | $0.00518 |
| Haiku 4.5 | $0.00005 | $0.00259 |
Grade A, and why
developer-signup-flow 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 387 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Developer Signup Flow
Create signup experiences that respect developers' time and get them to code as fast as possible.
Overview
Developer signup is your first chance to demonstrate that you understand developers. Every unnecessary form field, every extra click, every "verify your email before continuing" is a message that you don't value their time. The best developer signups feel like they barely exist—developers go from "I want to try this" to "I'm writing code" in under 60 seconds.
This skill covers OAuth integration, API key generation UX, progressive profiling, and measuring what actually matters in signup conversion.
Before You Start
Review the /devmarketing-skills/skills/developer-audience-context skill to understand your target developer segments. Signup optimization varies significantly based on whether you're targeting hobbyists exploring on weekends versus enterprise developers evaluating tools for their company.
OAuth Options That Work
The GitHub-First Approach
For developer tools, GitHub OAuth should be your primary option. Here's why:
- Identity verification built-in - Active GitHub accounts have commit history, repos, and social proof
- Scope familiarity - Developers understand GitHub's permission model
- Profile data - You get username, email, and can infer experience level from public activity
- Trust signal - GitHub is where developers already live
Good implementation (Vercel):
- Single "Continue with GitHub" button dominates the page
- Email option available but secondary
- No password creation required
- Immediate redirect to dashboard after OAuth
Bad implementation:
- GitHub, Google, Twitter, LinkedIn, Email, and "Sign up with phone" all given equal prominence
- Requires email verification even after GitHub OAuth
- Asks for additional profile information before showing dashboard
OAuth Option Hierarchy
Prioritize based on your audience:
| Audience | Primary | Secondary | Avoid |
|---|---|---|---|
| Open source developers | GitHub | Google Workspace | |
| Startup developers | GitHub | Enterprise SSO | |
| Enterprise developers | SSO/SAML | Google Workspace | Social logins |
| Data scientists | GitHub | ||
| Mobile developers | GitHub |
What ships with it
1 file 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.
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.
- 1mo ago First seen · 387 lines · 54 tokens per session scan A 4b4010bced64
developer-signup-flow is a skill published in the GitHub repository jonathimer/devmarketing-skills (87 stars, last pushed 7mo ago), licensed MIT. It adds 54 tokens to every session and 2,590 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.
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