DEVLog - August
Discover what happened in August 2026. Qualified signatures took shape at SignatureAPI, the ChatGPT app went public, ParentSignature for Schools rebuilt its roster, and a tiny virtual dog appeared.
August had 822 commits across 13 repositories. Many of them went into personal tools that I keep private. The rest went into SignatureAPI, the school app and one small public gift.
I wrote this devlog later, from my GitHub history, to fill a gap in the series.
Qualified signatures take shape
SignatureAPI got 322 commits from me. The biggest piece was qualified electronic signatures. A qualified signature needs a certificate held by a trusted provider, so SignatureAPI cannot create it alone. It has to ask someone else to sign.
To do that, I worked on a protocol we call SWP/1, the Signing Worker Protocol. A signing worker is a small service that receives a document fingerprint and returns a signature. I also worked on an adapter for CSC, the Cloud Signature Consortium standard that many providers use. All of this stayed behind a feature flag, so it was not open to everyone yet.
Other work this month:
- Testing with AI agents. Our MCP server got tools to read emails in test mode. An AI agent can now read test emails and get the signing link from them.
- Custom authentication. You can now create a ceremony with custom authentication right from a recipient’s page in the dashboard.
- Accessibility. I fixed gaps in the signing ceremony to meet WCAG 2.1 AA, the common accessibility standard. That means better dialogs, error messages that screen readers announce, and visible focus.
- Faster tests. I rebuilt our end-to-end tests so they run in parallel.
On the website, I documented our ChatGPT app, which is now published, and added Codex to the guide for connecting AI clients. I also wrote a page about the Brazil ICP-Brasil attestation from last month.
SignatureAPI Electronic signature API for workflows, applications and platforms. Everyone is a person
ParentSignature for Schools got 42 commits. The main change was a rebuild of the roster. Now everyone in it is a person, and being the subject of a form is just a role a person can have.
You can add anyone by hand, and you pick who signs by searching for them. Each form record is now a dashboard of documents, with the roster next to it. Every code branch also gets its own preview site that you can log into, which makes testing easier.
ParentSignature A free tool that lets teachers collect parent signatures on school forms digitally. A small dog for big questions
I published a tiny public project called Perrito de Mar. It is a small virtual dog for emotional support, for those moments when big questions feel heavy. Its description says it best: “Un perro pequeño para preguntas grandes.”
Perrito de Mar Un perro pequeño para preguntas grandes. Apoyo emocional contra la crisis existencial. Private tools
The rest of the month went into personal tools I am not ready to share. I also started a private collection of skills for AI coding agents, small instruction files that teach an agent how to do a task well.
Privacy Policy Review got an SEO overhaul, with static marketing pages, FAQs and an llms.txt file for AI search engines.
What’s next
- SignatureAPI: more tools for AI agents and developers.
- ParentSignature for Schools: let AI assistants work with the app.
Thank you for reading. Let’s keep building!
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