Great. I reached lv 30 and have extra 6 skill points. Now I can use them.

no sir... so choose your skills wisely

Is the number of skill points earned at each level adjusted?

this is funny

Glad to be of help

ok dud, for now I just changed it to maximum -35% discount at level 3 skill. I will test this mod further in the future to see if it perfectly balanced yet, thank.

Trust me I have tested it multiple times. Redeployment cost is exactly as it sounds. Its the cost of redeploying your army after you recall them. Replenishment is how fast your army recovers after taking losses

I think Redeployment cost only applies to an army that suffered losses, not the army you recalled. Can you test this matter out for sure?
I played a few campaigns with this mod but didn't recognize any problem besides this, now I'm quite busy and don't have time to check.
If it true I will make some fixes. Thanks

Continued:

I think you are confusing Redeployment with Replenishment in your last sentence. Your bonuses to replenishment is fair since its a huge investment of limited skill points in order to get that much replenishment. I am honestly excited to see how you build upon this mod since it reminds of Rome 2 and Attila's skill trees where you can either be a jack of all trades master of nothing or invest heavily in one particular skill branch. With your mod I can have one general who is specialized in Replenishment while another in Campaign movement. If you take my recommendations then I can also specialize generals for admin skills.

If the faction leader and heir max Flexibility this will give 100% discount on redeployment cost. This means that you can for example, recruit a retinue of Jade Dragons in Changsha and then recall the general and redeploy him next turn in Wei for absolutely free. This is a famous exploit to literally teleport armies across the map and work best with Sun Jian's faction by using Mercenary units that require no mustering.

Previously you had to wait till you are Emperor in order to use this exploit since you need 4 generals as Faction Leader, Heir or Minister for it to work. With your mod, I only need Faction Leader and Heir. Considering that many factions have Commanders as their Faction Leader and Vanguards or Champions as Heirs (Yuan Shao, Yuan Shu, Cao Cao, Liu Bei and others come to mind) this can easily break the game.

It's not too OP my friend. -50% redeployment cost is only apply when you are a faction leader and you still have to pay a ton even after you maxed out that skill. Redeployment speed bonus is still small if you compare to some bonus from other sources.

After playing around with this mod I feel that the Faction Wide bonuses should remain the same no matter the upgrade. So far you have done well with that part except for the skill Flexibility. Getting up to 50% discount on Redeployment from just one character is way too OP. You can literally teleport your armies free of charge across the map this way. Leaving it at 25% is more balanced while keeping the Stat increase as well as the Replenishment bonus.

What this mod really needs is an UP GRADE to the Admin skills; Scholarship (bonus to commerce/silk/spice, Intuition (bonus to Industry) and Wisdom (An extra bonus other than the useless Reserve. Maybe character experience? or a small bonus to income from all sources?)

I like what you made for Trust. Extra bonus to Peasantry income is always good. Stability and Abundance should remain as vanilla though. Too OP getting so much food and public order from skills.

Excellent mod. Looking forward to see it expanded upon

the other skills might be too strong if upgradable, so I need to test them out me self first

can you add more skills to 3 levels

indeed my friend

Thumb nail is really cool though!