I would not compare them by feature count
The easy comparison is to put both tools under "agents that can look things up." That hides the useful difference.
Agent-Reach is helpful when I already know where I want to look. last30days is helpful when I only know the topic and need to hear how people have been talking about it recently. One starts from a source. The other starts from a question.
So I would not ask, "which one is better?" I would ask, "am I trying to inspect evidence, or am I trying to find the shape of the problem?"
The split I would use
| Question | Agent-Reach | last30days |
|---|---|---|
| Closest mental model | A way for an agent to go inspect specific places. | A way to turn recent public discussion into a research brief. |
| Starting point | A URL, platform, repo, video, account, or narrow search. | A topic, product category, competitor set, or buyer question. |
| What comes back | Evidence you still need to read: pages, posts, transcripts, repo data, search results. | A short research brief: pains, objections, alternatives, signals, and links to verify. |
| Time window | Depends on the platform and query. | Built around recent discussion, usually the last 30 days. |
| Best job | Source inspection. | Topic triage. |
| Risk to watch | Too much access for a narrow question: cookies, CLIs, credentials, and platform limits. | A neat summary that hides weak retrieval or turns community chatter into fact. |
Where Agent-Reach helps
I would use Agent-Reach when the next step is concrete. For example: "read this repo," "check this docs page," "pull the transcript for this video," or "search this platform for this phrase."
That makes it useful after a question has narrowed down. If last30days tells me that people keep mentioning one GitHub project, one YouTube demo, or one Reddit thread, Agent-Reach is the tool I would use to inspect that source instead of relying on the summary.
- Read a repo before writing about a tool.
- Pull a transcript or thread that keeps getting cited.
- Check whether a claim is actually supported by the linked source.
- Search one platform when a broad market summary would be too vague.
Where last30days helps
I would use last30days earlier in the process, when the question is still messy. Maybe I know I want to write about NotebookLM alternatives, AI coding fatigue, or agents that browse social platforms, but I do not yet know the angle.
That is where a recent market-voice brief helps. I want to see the repeated complaints, the alternatives people mention without being prompted, and the objections that keep showing up. I do not want a pile of raw posts yet. I want a map.
- Find the phrases users actually use for the problem.
- Notice repeated complaints before choosing an article angle.
- Collect alternatives and objections that deserve source checks later.
- Decide whether a topic has enough recent signal to justify writing.
How I would use both for AI Picker
The useful workflow is not either/or. I would put them in sequence.
- Start with official sources: docs, pricing, changelog, security page, and repository when available.
- Use last30days to find recent pain, objections, alternatives, and buyer language.
- Use Agent-Reach when the brief points to a repo, thread, video, platform, or article that needs inspection.
- Keep the conclusion separate. A tool can collect evidence; it should not decide the recommendation boundary.
The permission question
This is the part I would not skip. Both kinds of tools can look harmless in a README, then become sensitive once they touch browser sessions, private repos, cookies, or platform logins.
Before giving either one access, I would ask:
| Check | Why it matters |
|---|---|
| What credentials does it need? | API keys, cookies, browser sessions, and platform CLIs have different risk levels. |
| Can it access private data? | A repo, inbox, account, or browser session may expose more than the query needs. |
| Are sources traceable? | Research outputs should retain links or source identifiers for manual verification. |
| Does it separate fact from signal? | Community discussion can reveal pain, but it cannot confirm official policy or price. |
| Can you run it in a narrow mode? | A single-platform or read-only mode is safer than broad access on the first run. |
| Can you explain failures? | No results, rate limits, and blocked sources should be visible, not silently turned into zeros. |
A few concrete choices
| Scenario | Better first tool | Why |
|---|---|---|
| You want to know whether developers recently complain about AI coding tools wasting review time. | last30days | The task is topic-level market voice. |
| You need to inspect a specific GitHub repo before writing a safety note. | Agent-Reach | The task starts with a concrete source. |
| You want a brief on NotebookLM alternatives over the last month. | last30days | The task is recent comparison and user language. |
| You need to pull a video transcript or inspect a thread mentioned in a brief. | Agent-Reach | The task is source-level evidence collection. |
| You are writing a buyer guide and need both objections and proof links. | Both | Use last30days to find angles, then Agent-Reach to inspect specific evidence. |
Mistakes I would avoid
- Do not treat a scrape as a recommendation. Reading more pages does not make a tool safe or useful.
- Do not treat a summary as a fact source. A market-voice brief can be thin or biased by source coverage.
- Do not grant broad credentials for a narrow question. Start with public, read-only, or sandbox sources.
- Do not publish a claim you cannot trace. Keep links, dates, and official sources close to factual statements.
Sources I checked
I am deliberately not treating a local installation as a public product fact. These projects can change quickly, and your available sources depend on credentials, installed providers, and platform access. Check the official pages before using either in production.
- Agent-Reach official GitHub repository
- Agent-Reach install documentation
- last30days official GitHub repository
- last30days skill specification
My bottom line
If I am still trying to understand what people care about, I would start with last30days. If I already know what source needs checking, I would use Agent-Reach. They are not replacements for each other. Used carefully, last30days helps find the questions, and Agent-Reach helps inspect the evidence.