SCP Foundation

Writing an SCP and i want it to include SCP discovery log. Is there any tips to make a good one (aside from just looking at other SCPs to get an inspiration)?

What i will include in the discovery log:

• Termination of witnesses
• SCP sighting location
• An SCP Squad
• Name of SCP Agent or Squad Leader
• Transport to facility
• The discovery log is in the addendum

Without seeing the SCP, there's not much that can be helped with on this front.

However, any additions to a SCP should further the overall narrative that you're making. If you're adding in a discovery log for shits n' giggles (i.e. no other purpose than to fulfill an idea that every SCP needs a discovery log, which is untrue), then your SCP is probably going to be better off without one.

If you're not- ask yourself what insights your hoping to get across to the reader that can't be done in the description. How does it impact the story you want to tell in the Article?

Is there any tips to make a good one

Some "in general" stuff… well, for one, you'd need to make it realistic.

You mentioned that you're planning to include "Termination of witnesses". Why would the Foundation want/need to outright kill people who were involved? Why can't the Foundation have mind-wiped them with amnestics and let them go on with their lives? Usually if someone completely ordinary witnesses something anomalous happening, getting rid of them entirely is usually waaaaaay too excessive. The Foundation wants to make sure that the public don't know about anomalies, and don't know that the Foundation itself exists. If there are sudden disappearances or people ending up dead for no reason, the public will start to notice and get concerned.

Also, what is an "SCP Squad"? Are you thinking of something along the lines of a Mobile Task Force?