kaigi no ato, kanozyo ga giziroku wo matomete kuremasita.

The の links the noun 会議 with あと.

• 会議 = meeting
• あと = after

So 会議のあと literally means the after of the meeting, which is how Japanese forms after the meeting.

This is a very common pattern:

• 授業のあと = after class
• 仕事のあと = after work
• 食事のあと = after the meal

Without の, it would sound ungrammatical.

In 会議のあと、彼女が..., the phrase 会議のあと is being used as a time expression, so it can appear without another particle.

This is similar to how time expressions often work in Japanese:

• 昨日、行きました。 = I went yesterday.
• 会議のあと、彼女が議事録をまとめてくれました。 = After the meeting, she compiled the minutes for me/us.

You could also sometimes see forms like 会議のあとで, which is also natural.
The difference is small here:

• 会議のあと = after the meeting
• 会議のあとで = after the meeting, then...

Both are common, but 会議のあと is very straightforward and natural.

Using が marks 彼女 as the person who did the action.

So the sentence highlights she as the one who compiled the minutes.

• 彼女が議事録をまとめてくれました。 = She compiled the minutes for me/us.
• 彼女は議事録をまとめてくれました。 = As for her, she compiled the minutes for me/us.

The difference is about focus:

• が often identifies or emphasizes the subject doing the action
• は presents the topic and can sound more contrastive or descriptive

In this sentence, が is very natural because it answers the implicit question who did it?

The verb is まとめる, which has meanings like:

• to put together
• to organize
• to compile
• to summarize

With 議事録, it means something like:

• compile the meeting minutes
• put the minutes together
• write up the minutes in organized form

So 議事録をまとめて does not just mean a simple one-word summarize in every context. It suggests organizing the meeting record into a proper finished form.

This is because くれる is attached to the て-form of another verb.

Pattern:

• Vてくれる = someone does something for me/us

So:

• まとめる → まとめて
• まとめてくれる = to compile it for me/us

Then in polite past:

• まとめてくれました = did the compiling for me/us

This is a very important grammar pattern in Japanese:

• 手伝ってくれました = helped me/us
• 教えてくれました = taught me/us
• 送ってくれました = sent it for me/us

This is one of the most important parts of the sentence.

• まとめました = she compiled the minutes
• まとめてくれました = she compiled the minutes for me/us, with a nuance that the speaker received the benefit of her action

So くれました adds a sense of:

• benefit to the speaker or the speaker’s in-group
• appreciation
• kindness or helpfulness

It often implies that the speaker feels thankful, or at least sees the action as helpful.

If you remove くれました, the sentence becomes more neutral and factual.
With くれました, it sounds more like she kindly did that for us/me.

In a sentence with Vてくれる, the beneficiary is usually:

• the speaker
• or the speaker’s group

So 彼女が議事録をまとめてくれました implies:

• She compiled the minutes for me
• or for us / our team

Japanese often leaves this unstated when it is understood from context.

If you wanted to say it explicitly, you could say something like:

• 彼女が私たちのために議事録をまとめてくれました。

But in most real situations, that would be unnecessary.

を marks the direct object of the verb.

Here, the thing being compiled/organized is 議事録.

So:

• 議事録をまとめる = to compile the minutes

This is a standard object marker:

• 本を読む = read a book
• メールを書く = write an email
• 議事録をまとめる = compile the minutes

It shows both.

• dictionary form: くれる
• polite non-past: くれます
• polite past: くれました

So くれました means the action was completed in the past, and the speaker is speaking politely.

That makes the whole sentence polite in tone.

Yes. In casual speech, you could say:

• 会議のあと、彼女が議事録をまとめてくれた。

This is the plain past form.

Compare:

• まとめてくれました = polite
• まとめてくれた = casual/plain

The meaning is basically the same, but the level of formality changes.

Yes, Japanese word order is flexible as long as the particles make the roles clear.

For example, these are all possible:

• 会議のあと、彼女が議事録をまとめてくれました。
• 彼女が会議のあと、議事録をまとめてくれました。
• 議事録を彼女が会議のあと、まとめてくれました。

However, the original version sounds very natural because it presents:

1. the time
2. the doer
3. the object
4. the action

That is a common and easy-to-follow order.

The main readings are:

• 会議 → かいぎ
• 彼女 → かのじょ
• 議事録 → ぎじろく
• まとめて → まとめて
• くれました → くれました

A full reading of the sentence is:

かいぎ の あと、かのじょ が ぎじろく を まとめて くれました。

Not exactly.

In English, she is used very freely. In Japanese, speakers often omit pronouns when the context is clear. So in natural Japanese, a sentence like this might sometimes omit 彼女 entirely:

• 会議のあと、議事録をまとめてくれました。

If everyone already knows who did it, that can sound more natural.

Also, 彼女 can sometimes mean girlfriend depending on context, but here, because of が and the sentence structure, it clearly means she.