after_extract

after_extract(items, ctx) receives all extracted items at once. Good for cross-item logic, dedup, or sorting.

No short-circuit: returning nil or empty table just means no items, not a pipeline abort.

Signature

function after_extract(items, ctx) -> table

Parameters

Field	Type	Description
items	array	Array of item tables

Each item has:

• item.fields - table (string→string)
• item.matches - READ-ONLY: Populated by engine

Returns

Return	Effect
Array of items	Continue with modified items
Empty table / nil / false	No items to process

Example

function after_extract(items, ctx)
    -- Remove duplicate titles
    local seen = {}
    local unique = {}
    for _, item in ipairs(items) do
        local title = item.fields.title or ""
        if not seen[title] and title ~= "" then
            seen[title] = true
            table.insert(unique, item)
        end
    end
    return unique
end

See Also

• override_extract - Replace the built-in CSS extractor
• filter_item - Per-item filter (replaces built-in keyword filter)