Digest the sources you watch into Slack

Every morning at 08:00, each page you have named, a vendor's changelog, a regulator's notices page, a competitor's blog, is read, and only the lines that match what you care about are kept. Those lines are posted to one Slack channel, each with the address it came from.

Every line posted is quoted from the page word for word: a suggested line that does not appear on the page is dropped and counted, never posted. No summary, ranking or opinion is added, so the judgement stays yours. Exactly one message is posted per run, including on days when nothing matched, so silence is never ambiguous. A page that cannot be read is reported by its host name only, never by the full address, in case it carries a key, and each run is bounded in how many sources it reads and lines it posts.

You need the page addresses to watch, a short brief of what matters to you, and a Slack channel. There is no memory between runs, so a page that says the same thing tomorrow is quoted again.

Run every day at 08:00.Run every day at 08:00.

Set sourceUrls to blank.Set sourceUrls to blank.

Set readerBrief to blank.Set readerBrief to blank.

Set slackChannelId to blank.Set slackChannelId to blank.

Set maxSourcesPerRun to 8.Set maxSourcesPerRun to 8.

Set maxLinesPerRun to 12.Set maxLinesPerRun to 12.

Split sourceUrls by , and save it as sources.Split sourceUrls by , and save it as sources.

Set keptLines to an empty list.Set keptLines to an empty list.

Set sourcesRead to 0.Set sourcesRead to 0.

Set sourcesSkipped to 0.Set sourcesSkipped to 0.

Set linesRejected to 0.Set linesRejected to 0.

For each source in sources:For each source in sources:

Trim source and save it as sourceUrl.Trim source and save it as sourceUrl.

If sourceUrl is emptyIf sourceUrl is empty

Yes

Skip to the next item.Skip to the next item.

No

No steps

If the length of keptLines is greater than or equal to maxLinesPerRun multiplied…If the length of keptLines is greater than or equal to maxLinesPerRun multiplied…

Yes

Stop repeating.Stop repeating.

No

No steps

If sourcesRead is greater than or equal to maxSourcesPerRun multiplied by 1If sourcesRead is greater than or equal to maxSourcesPerRun multiplied by 1

Yes

Stop repeating.Stop repeating.

No

No steps

If sourceUrl doesn't start with http (ignoring case)If sourceUrl doesn't start with http (ignoring case)

Yes

Add 1 to sourcesSkipped.Add 1 to sourcesSkipped.

Show in the output: One entry in 'sourceUrls' is not a web address starting with http, so it was skipped..Show in the output: One entry in 'sourceUrls' is not a web address starting with http, so it was skipped..

Skip to the next item.Skip to the next item.

No

No steps

Add 1 to sourcesRead.Add 1 to sourcesRead.

Get the first item of sourceUrl with https:// replaced by with http:// replaced by split by / and save it as sourceHost.Get the first item of sourceUrl with https:// replaced by with http:// replaced by split by / and save it as sourceHost.

Set pageText to blank.Set pageText to blank.

Set pageTitle to blank.Set pageTitle to blank.

If a step below fails, save the error as readErrorIf a step below fails, save the error as readError

Try

Jina AIRead the page at sourceUrl with Jina. Save it as page.Read the page at sourceUrl with Jina. Save it as page.

Trim page.content and save it as pageText.Trim page.content and save it as pageText.

Trim page.title and save it as pageTitle.Trim page.title and save it as pageTitle.

On error

Replace sourceUrl with the source address in readError.message and save it as readNote.Replace sourceUrl with the source address in readError.message and save it as readNote.

If readNote contains :// (ignoring case)If readNote contains :// (ignoring case)

Yes

Change readNote to the page could not be read.Change readNote to the page could not be read.

No

No steps

Show in the output: Could not read sourceHost: readNote.Show in the output: Could not read sourceHost: readNote.

If the length of pageText is less than 200If the length of pageText is less than 200

Yes

Add 1 to sourcesSkipped.Add 1 to sourcesSkipped.

Show in the output: There was not enough readable text at sourceHost to filter this run.Show in the output: There was not enough readable text at sourceHost to filter this run.

Skip to the next item.Skip to the next item.

No

No steps

Set promptIntro to You are filtering one web page for one reader.Set promptIntro to You are filtering one web page for one reader. The reader cares about: readerBrief .

Set prompt to promptIntroReturn at most three lines from the page that match what the reader cares about. Copy each line word for word from the page. Do not summarise it, rewrite it, translate it, rank it, or add any judgement, conclusion or opinion of your own. Separate the lines with |||. If nothing on the page matches, reply with the single word NONE and nothing else.Set prompt to promptIntroReturn at most three lines from the page that match what the reader cares about. Copy each line word for word from the page. Do not summarise it, rewrite it, translate it, rank it, or add any judgement, conclusion or opinion of your own. Separate the lines with |||. If nothing on the page matches, reply with the single word NONE and nothing else. Page title: pageTitle Page text: pageText truncated to 4000 characters.

Set answerText to blank.Set answerText to blank.

If a step below fails, save the error as filterErrorIf a step below fails, save the error as filterError

Try

Trim the response text from the Claude “Ask Claude” step and save it as answerText.Trim the response text from the Claude “Ask Claude” step and save it as answerText.

On error

Show in the output: The filter step did not answer for sourceHost this run, so nothing from it was posted.Show in the output: The filter step did not answer for sourceHost this run, so nothing from it was posted.

If answerText is emptyIf answerText is empty

Yes

Skip to the next item.Skip to the next item.

No

No steps

For each suggestedLine in answerText split by |||:For each suggestedLine in answerText split by |||:

Trim suggestedLine and save it as candidateLine.Trim suggestedLine and save it as candidateLine.

If candidateLine is emptyIf candidateLine is empty

Yes

Skip to the next item.Skip to the next item.

No

No steps

If candidateLine in lowercase is noneIf candidateLine in lowercase is none

Yes

Skip to the next item.Skip to the next item.

No

No steps

If the length of keptLines is greater than or equal to maxLinesPerRun multiplied…If the length of keptLines is greater than or equal to maxLinesPerRun multiplied…

Yes

Stop repeating.Stop repeating.

No

No steps

If pageText doesn't contain candidateLine (ignoring case)If pageText doesn't contain candidateLine (ignoring case)

Yes

Add 1 to linesRejected.Add 1 to linesRejected.

Skip to the next item.Skip to the next item.

No

No steps

Add - candidateLine truncated to 300 charactersAdd - candidateLine truncated to 300 characters sourceUrl to the end of keptLines and save it as keptLines.

Set digestHeader to From the sources you follow - read sourcesRead of them this run.Set digestHeader to From the sources you follow - read sourcesRead of them this run.

Set messageText to digestHeaderSet messageText to digestHeader Nothing on those pages matched your brief this run.

If keptLines isn't emptyIf keptLines isn't empty

Yes

Change messageText to digestHeaderChange messageText to digestHeader keptLines joined by a new line Every line above is quoted from the page it links to.

No

No steps

Set footer to blank.Set footer to blank.

If sourcesSkipped is greater than 0If sourcesSkipped is greater than 0

Yes

Change footer to Change footer to sourcesSkipped source(s) could not be read or had too little text to use.

No

No steps

If linesRejected is greater than 0If linesRejected is greater than 0

Yes

Change footer to footerChange footer to footer linesRejected suggested line(s) were dropped because they did not appear on the page word for word.

No

No steps

SlackSend a message to slackChannelId.Send a message to slackChannelId.messageText plus footer truncated to 3500 characters

Show in the output: Posted the length of keptLines line(s) to Slack from sourcesRead source(s).Show in the output: Posted the length of keptLines line(s) to Slack from sourcesRead source(s).