Draft a firm, professional cease-and-desist letter to stop harassment, defamation, IP misuse, or unwanted contact — clear about what must stop and what happens if it doesn't.
SkillScore59Maintained
Automatic
◆Legal & Contracts pack
Last verified 8/31/2026
What it changes
Passed 13 of 22 test cases with the skill, and 9 of 22 without it.
Without skill41%
With skill59%
Checks it passed that the model alone missed
The response recommends keeping an evidence log.
The response includes a firm compliance deadline.
The response includes advice on maintaining an evidence log.
and 2 more in the full report
5 fixed8 passed either way8 still failing1 broke
Pass-rate lift
+18 pp
Tokens
+45%
Agent turns
0%
Response time
-6%
Model gemini-3.6-flashMeasured 8/31/2026v113 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 5 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 5
Prompt
An ex-colleague has sent me dozens of unwanted text messages and emails over the past two weeks despite me explicitly asking them to stop on November 3rd. I need a firm warning letter outlining the exact unwanted behavior, asserting my right to be left alone, giving them a firm date by which all contact must permanently end, and stating what will happen if they continue. Please include instructions for trackable delivery, advice on keeping a document log, and a recommended escalation path if I need legal or police involvement.
What was checked, without and with the skill
Checked
Without skill
With skill
The response includes a header line identifying the recipient.
Passed
Passed
The response includes a request for written confirmation of compliance.
Missed
Passed
The response includes an escalation section referencing law enforcement or legal counsel.
Passed
Passed
case-03 · gemini-3.6-flash · 8/31/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md67 linessingle file
Cease-and-Desist Letter
A well-written cease-and-desist often stops the behavior on its own — it signals you're serious, documented, and ready to escalate. This drafts one that's firm and specific without empty threats: what conduct must stop, why it's wrongful, the deadline, and the consequence — while being honest that for serious or ongoing matters, a letter on a lawyer's letterhead (or actual legal action) carries more weight.
What This Skill Produces
The letter — a structured cease-and-desist: the parties, the specific conduct, why it's improper, the demand, a deadline, and the consequence of non-compliance
The demand & deadline — exactly what must stop (or be removed/returned) and by when
Delivery & record guidance — how to send it with proof (trackable/receipted) and keep a copy
An escalation note — what a "next step" realistically is, and when to involve a lawyer or authorities
A tone check — firm and factual, not abusive or bluffing
Required Inputs
Ask for these if not provided:
The conduct — what's happening (harassment, defamation, copyright/trademark misuse, breach, unwanted contact) and by whom
The evidence — dates, examples, and what you can document
What you want — stop, take down, retract, return, or no further contact
Relationship & history — prior warnings, any agreement/contract involved
Region & stakes — for tone and whether a lawyer is warranted
Framework: State It, Demand It, Mean It
Identify the conduct precisely. Name the specific behavior with dates/examples — vague accusations are easy to dismiss.
Say why it's wrongful. Tie it to the harm or the right being violated (your IP, reputation, agreement, or a request to stop contact) without overstating the law you can't back.
Make a clear, bounded demand. Exactly what must stop/happen, and a specific deadline.
State a real consequence. What you'll do if ignored (legal action, reporting, platform complaint) — only what you're prepared to actually do.
Deliver with proof and keep records. Send it trackably, keep a copy, and log everything — it becomes evidence if it escalates.
Know the ceiling. For serious harassment, real IP disputes, or threats, a lawyer's letter or formal action carries far more weight — flag it.
Output Format
Cease & desist: [conduct] · to [recipient]
Letter
Re: Demand to cease [conduct]
[Identify parties] · [the specific conduct + dates/examples] · [why it's wrongful/harmful] · [the demand: stop/remove/return + deadline] · [consequence if not complied with] · [request for written confirmation].
Deliver: send with tracking/proof of receipt; keep a copy.
Keep: evidence log of the conduct and this letter.
Convert a git log, commit list, or release notes into a polished, user-facing changelog. Use when writing release notes, generating a CHANGELOG.md entry, or documenting what changed in a version. Produces a structured changelog section with version header, categorised changes, and migration notes. For an already-curated change list use changelog-writer instead.