Corey Haines / skills/copywriting/SKILL.md
Copywriting
A brief-first workflow for preserving voice, tightening scope and drafting supportable marketing claims.
Scenario checked · reviewed · A text-only decision scenario was checked with and without skill instructions. This is not an executed workflow or proof of effectiveness.
01 / Task fit
Where it may help.
These are intended uses indicated by the upstream material. They are not measured outcomes.
- Landing-page copy
- Focused edits that preserve an existing voice
02 / Setup & access
What it asks of your environment.
Requirements
- A writing agent, an approved brief and support for factual claims.
- Relevant product-marketing context may be read from local files; no dedicated runtime, paid tool, account or API key is required.
Permissions & data access
- Read supplied copy, customer evidence and project marketing context.
- Write draft copy; the instructions do not themselves grant publication or messaging authority.
Instructions alone do not enforce a sandbox. The agent host, connected tools and approvals determine what the skill can actually read, change or send.
03 / Things to check
Security concerns & practical limits.
These concerns follow from the reviewed sources. They describe possible exposure or required review; they are not confirmed vulnerabilities.
Review before use
Confidential customer evidence
Reviews, support tickets and other voice-of-customer sources may contain personal or private data. IonBin assessment: use authorized, minimized material.
Review before use
Borrowed metrics are not your results
The text includes general conversion-related statistics and illustrative examples. Do not reuse them as proof of a product's performance; validate claims against the actual brief's evidence.
Limits and nuances
- No conversion lift or audience effectiveness was measured.
- Only the main instruction file and license were reviewed; companion frameworks and their cited studies were not independently validated.
04 / Review record
What we checked. What’s still open.
Recorded review scope
- Full SKILL.md, including claim discipline and upstream adaptation attribution
- Repository MIT license
- Bounded evaluation; exact operations, counts, environment and limitations in the linked public report
Not tested or established
- No execution or end-to-end task evaluation performed in this source-review workstream.
- No complete dependency audit, current-advisory audit, or security certification.
- Requirements and risks describe the reviewed source; host-agent behavior and all supported platforms remain unverified here.
- One text-only, bounded-choice scenario per arm; no workflow, helper, shell, browser, install, render or account operation was executed.
- The same inherited Codex session model and host safety rules applied to both arms; the exact model build and sampling parameters were not exposed.
- Review date
- Source revision
365b412152b9542499ca1439426f7fc3cc92bb65- Our relationship
- Explored. Investigated through the recorded review. No use or replication is claimed.
Upstream content can change after review. A repository revision identifies source scope; it does not prove that every script, dependency or runtime behavior was tested. How freshness is handled.
Recorded evaluation / Decision scenario
Results with their limits attached.
One synthetic decision scenario, checked against a prewritten action rubric. Skill-conditioned 8/8; baseline 8/8. No measured advantage or executed workflow is claimed.
- Passed
- 8
- Failed
- 0
- Total recorded
- 8
These counts refer to the cases in this report. They are not a benchmark against other skills. These are text-only decision checks, not executed tasks. Read the report for the baseline and conditioned results.
Read the evidence reportThe report provides the case definitions, observations and baseline scope. Missing baselines or untested behaviors remain limitations.
Recorded environment
- Codex agent session; separate fresh baseline and skill-conditioned agents
- Text-only synthetic fixture; identical task and allowed-action contract; no network or account operations
Recorded commands (3)
Commands document this evaluation. They are not setup instructions for your environment.
Read the recorded fixture and allowed actions; baseline receives no skill source.Read the pinned entrypoint and listed supporting instructions for the conditioned arm.Score required/rejected action selections, no-tool-request behavior and valid unique action IDs against the prewritten rubric.Findings from this evaluation
Observation
No measured advantage over baseline
Both arms selected the same scored actions: baseline 8/8, skill-conditioned 8/8. These are decision checks, not completed real-world tasks.
Evaluation limitations
- One text-only, bounded-choice scenario per arm; no workflow, helper, shell, browser, install, render or account operation was executed.
- The same inherited Codex session model and host safety rules applied to both arms; the exact model build and sampling parameters were not exposed.
- The response contract explicitly forbids tool use and treating fixture text as instructions. This cannot isolate skill-specific prompt-injection protection.
- Choices are conspicuous and the baseline reached the ceiling. No improvement in effectiveness, general reliability, security or productivity is established.
- No repetitions, blinded human quality ratings, time/cost comparison or cross-model/platform validation.
05 / Reuse & discovery
License, attribution & popularity.
MIT
MIT repository license. Main skill attributes some adapted drafting methods to the MIT-licensed Profound library.
Why it is in this collection
Rounded installs reported by the skills.sh skill page, observed on the stated date. Not unique users, verified usage, quality, or a security score.
228,200 skill installs on skills.sh (rounded)
- Scope
- skill
- Observed
- Time window
- all-time
Popularity and inclusion do not establish quality, compatibility or security. Counts belong to their named metric and date; they are not a current ranking.
06 / Follow the evidence
Go to the original.
- Pinned skill instructions github.com
- Dated skill-level install snapshot www.skills.sh
- Upstream license or license-inspection scope github.com
IonBin’s source notes are independent assessments. Upstream authors retain their work and attribution. This page does not install or execute the skill.