Technical due diligence is a context-management problem before it is a judgment problem. You need to understand the architecture, risks, dependencies, delivery history, security posture, operational habits, and the difference between what the team says and what the artifacts show.
The hard part is that the evidence arrives in pieces. A data room has PDFs. Engineering leaders give walkthroughs. Tickets tell one story. Incident notes tell another. Architecture diagrams are useful until you discover the system has moved on.
Docapybara gives you one place to hold the working review: source material, notes, transcripts, risk logs, questions, and drafts. Capy can search across the vault, summarize documents, and help you keep the review tied to evidence instead of memory.
Create a diligence home page
Start with one home page for the review. Give it a plain title: "Technical Diligence - Acme." At the top, write the purpose, scope, review dates, people involved, systems in scope, and what you still need.
Under that page, create sections or nested pages for architecture, product surface, infrastructure, data, security questions, engineering process, incidents, dependencies, and risk log. Do not build an elaborate system first. You need a place to land the next document and the next question.
If the diligence work is part of a broader acquisition process, Due Diligence for Acquisitions is a useful cross-category companion. This guide stays focused on the technical review, but the final output often feeds a larger business decision.
Keep source documents and interpretation separate
Source material should stay source material. Upload PDFs, pasted notes, diagrams, and exported reports. Let Docapybara convert PDFs into markdown so Capy can search and summarize them. If you record a walkthrough with permission, keep the transcript with speaker labels.
Then write your interpretation separately. Use headings like "Observed," "Claimed," "Needs verification," and "Risk." That separation matters. A vendor claim, a codebase observation, and your own concern should not blur into one confident paragraph.
Ask Capy to summarize source documents, but keep the review discipline human. "Summarize the infrastructure document and list claims that need verification" is a better prompt than "Tell me if this architecture is good."
When a source is thin, say so directly on the page. "No deployment runbook provided yet" is more useful than an empty section. Diligence often turns on missing evidence as much as present evidence, and a visible gap is easier to resolve than a quiet assumption.
Build a risk log you will actually maintain
Use an inline database via the :::database::: directive for the risk log. Keep the columns practical: risk, area, severity, evidence link, owner, open question, status, and mitigation note. Each row should point back to the page or source that supports it.
The evidence link is the important column. Without it, the risk log becomes a list of impressions. With it, you can trace a concern back to an incident report, architecture note, dependency list, transcript, or code review summary.
For a more general operational version of this habit, IT Teams and Incident Response Notes is a useful adjacent guide. Due diligence often depends on whether incident learning is visible or hidden.
Use questions as the spine of the review
A diligence review is driven by questions. What happens if the primary maintainer leaves? Which systems are hardest to deploy? What parts of the data model are brittle? What assumptions are baked into the architecture? Which dependencies are unowned?
Create a "Questions" page and keep every open question there. Link each question to source pages and answers as they arrive. Mark questions as open, answered, partially answered, or no evidence found.
Capy can help by scanning your notes and suggesting unanswered questions. Ask: "Read the architecture, incidents, and dependency notes. What important diligence questions are still unanswered?" Review the list. Some suggestions will be obvious. Some may point to gaps you had not written down yet.
Group questions by area so the next review call has a clean path: architecture, infrastructure, data, security review, engineering process, and operations. That structure keeps the conversation from bouncing between topics and makes it easier to send precise follow-up requests.
Compare architecture claims with operating evidence
Architecture diagrams describe intention. Incidents, deploy notes, and support escalations describe contact with reality. Both matter.
Keep the architecture page linked to the incident and operations pages. Ask Capy to compare them: "Where do incident notes suggest the architecture diagram is incomplete?" "Which services appear in operational problems but not in the system overview?" "What dependencies show up repeatedly?"
This is where Internal API Docs Your Future Self Can Actually Use becomes relevant. Internal service documentation can reveal whether the system has clear ownership and known contracts, or whether everyone is navigating by memory.
Draft findings with evidence attached
When it is time to draft findings, resist the urge to write from memory. Ask Capy to help assemble a first pass from the risk log, source summaries, open questions, and architecture notes. Structure the draft around findings, evidence, impact, and follow-up.
Then edit carefully. Diligence writing should be calm and precise. Avoid dramatic labels unless the evidence supports them. Use phrases like "the review found," "the available notes suggest," and "this still needs verification" when that is what you mean.
For the decision-record side of this work, Architecture Decision Records, Kept Where Your Agent Can Read Them is useful because diligence often asks whether past choices were intentional, documented, and still appropriate.
Preserve the trail after the review
The review may end, but the notes can still be useful. If the deal proceeds, the diligence vault becomes integration context. If it does not, the notes may still inform future evaluations. Keep the home page with final findings, open risks, key source links, and unresolved questions.
Do not turn the vault into a permanent compliance archive unless your process requires that elsewhere. Docapybara is for the working review. If your organization has legal or records-retention requirements, follow those systems and policies.
If integration follows, Mergers and Acquisitions Integration Notes can help with the post-decision workflow. The diligence notes should make that handoff less foggy.
Start with one live review packet
Pick one technical review packet, not an entire diligence methodology. Create the home page, add the first source documents, make the risk log, and write the current open questions. Ask Capy to summarize the packet and identify missing evidence.
Then use the vault during the next review call. Add notes while the conversation is fresh. Link answers to questions. Update the risk log. The calm version of diligence is not pretending you know everything. It is keeping the evidence close enough that you can say what you know, what you do not know, and why.
Try Docapybara free if you want a diligence workspace where source documents, risk logs, questions, and findings stay connected while Capy helps with the scan.