The Code Doesn't Tell the Whole Story
I've been building software for more than 20 years, and one thing I've learned is that understanding a software system means understanding more than the code sitting in the repository. The implementation tells us what exists today, but it doesn't necessarily tell us everything that happened while the software was being built.
Why was one approach chosen over another? What assumptions did we start with? What did we try that didn't work? What changed once implementation began? What did we discover along the way? Some of that information might survive in issues, pull requests, commit messages, documentation, or conversations, but much of it doesn't. Eventually, we're left with the software and have to work backward from what remains.
I've become much more aware of this problem as I've incorporated AI agents into my software development workflow. An agent can inspect a repository, read the code, analyze the architecture, review a diff, and trace an implementation. Those capabilities are becoming remarkably good. But there is still context I have as the builder that isn't necessarily represented in any of those artifacts. The agent can see what was built without always having access to the context surrounding how the software became what it is.
That's the problem I've been exploring with HindSite.
HindSite is a developer tool for reconstructing and preserving the story of software construction. The current product centers around something I call a Build Story. A Build Story uses evidence produced during development to reconstruct what happened during a piece of software construction. The builder can review that reconstruction, correct or refine it, reflect on what was learned, and preserve the resulting context as part of the history of the system.
The distinction between evidence and reflection is important to me. I'm not trying to create another development activity tracker or automatically manufacture documentation from everything a developer does. A Git commit can tell us that something changed. A pull request can contain a discussion about the implementation. A sequence of development activity can help reconstruct what happened. But the builder may be the only person who can explain why something mattered, what changed in their understanding, or what they would want another builder to know later.
Interestingly, HindSite itself has changed as I've built it.
My original thinking was much more centered on understanding the repository and codebase. That made sense to me because that's where we tend to look when we need to understand an existing software system. But while building HindSite, I began to recognize that the development workflow itself contains useful evidence. Before HindSite could help explain the deeper reasoning behind a system, it first needed to become better at understanding what actually happened while that system was being built.
That realization moved the initial product toward workflow comprehension.
The process has also reinforced something I believe about software construction in general: sometimes you have to let the software tell you what it is. Architecture and product design require intention, but building also produces information. You make assumptions, implement them, observe the result, and sometimes discover that the problem is slightly different from the one you thought you were solving.
There's a bit of irony in realizing that HindSite has been discovered through the same process it's intended to help preserve.
Today, the core Build Story workflow exists. A builder can capture evidence, reconstruct the development activity, review the reconstruction, reflect on what happened, and produce an exportable record of the Build Story. There is still technical work underway, including remaining integration and application cleanup, so HindSite is pre-alpha and I'm intentionally not opening the workspace to users yet. I'd rather finish the foundation than invite people into something before I believe it's ready for them.
See HindSite in Action
I put together a short video showing the idea behind HindSite and what I've been building:
Watch the HindSite introduction and preview on YouTube
Get Involved
I'm sharing HindSite here now because CoderLegion is a community of developers, and I'm interested in finding builders who recognize the problem before I begin inviting people into the alpha.
If you've returned to your own software months later and had to reconstruct why something was done, inherited a system where the implementation survived but much of its context didn't, or discovered that an AI agent could understand your code without understanding everything you know about the system, then you're experiencing some of the territory HindSite is exploring.
The alpha waitlist is available through the project website linked above. For now, I'm continuing to build, observe, and learn what HindSite needs to become.