Use when drafting the cover letter for an Advanced Materials submission, whose core job is to convince the editor that the work is a genuine materials advance of broad impact worthy of the journal. Argues the impact case; does not fix the science or format the manuscript.
SkillScore91Maintained
Automatic
◆Writing & Editing pack
Last verified 8/15/2026
What it changes
Passed 19 of 21 test cases with the skill, and 11 of 21 without it.
Without skill50%
With skill91%
Checks it passed that the model alone missed
The section follows the two-sentence advance structure.
The recommendation limits the cover letter length to one page.
The response includes the bracketed header 【Next】 for workflow continuation.
and 10 more in the full report
9 fixed11 passed either way2 still failing0 broke
Pass-rate lift
+41 pp
Tokens
+38%
Agent turns
0%
Response time
-17%
Model gemini-3.6-flashMeasured 8/15/2026v120 of 22 cases passed with skill · 21 comparable
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 9 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 9
Prompt
Draft the core two-sentence micro-model statement for a sodium-ion battery cathode utilizing high-entropy spinels.
What was checked, without and with the skill
Checked
Without skill
With skill
The first sentence leads with the material finding and structural/mechanistic design rule.
Passed
Passed
The second sentence includes a benchmarked metric and names specific neighbor research groups.
Missed
Passed
case-18 · gemini-3.6-flash · 8/15/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md75 linessingle file
Advanced Materials Cover Letter (advmat-cover-letter)
When to trigger
You are about to submit and need a cover letter that earns editorial review
advmat-scope-fit returned "Adv. Mater. with impact framing" and you must make that case
An editor previously desk-rejected similar work as "not a sufficient advance"
You need to distinguish this work from your own or others' recent related papers
You are resubmitting after transfer from, or rejection by, another journal
The editor's triage question
Advanced Materials editors desk-triage on advance and impact before sending anything to review. The cover letter's one job is to answer, in the editor's language: why is this a broadly important materials advance, not incremental optimization, and why here? Everything else is secondary.
Structure (one page, tight)
Submission line — article type (Communication / Research Article), title, and that it is submitted to Advanced Materials.
The advance in two sentences — the new material / mechanism / property, stated plainly. Lead with the finding, not the background.
Why it is an advance, not an increment — name the design rule or the trade-off it breaks; contrast explicitly with the prior state of the art (including your own prior work if relevant).
Why broad impact — name the concrete out-of-subfield or device community that will build on this, and why. This is the leg most letters omit.
Evidence in brief — the multi-technique characterization proves the structure–property claim, and the device is benchmarked against the best reported systems.
Housekeeping — originality and not-under-consideration-elsewhere; any prior preprint (e.g. ChemRxiv/arXiv) disclosed; related manuscripts under review; suggested and opposed referees (see advmat-referee-strategy).
What makes the impact case land
Contrast, don't assert. "Unlike prior layered oxides limited to X, this material achieves Y because Z" beats "this is a highly novel and important material."
Name the neighbor. Editors weigh breadth; a specific out-of-field beneficiary ("solid-state battery groups pursuing sulfide interfaces") is more persuasive than "the community."
Quantify the advance. One benchmarked number with conditions signals rigor; a hype adjective signals its absence.
Pre-empt the venue question. If the work could be read as AFM/Small-scale, say in one sentence why the advance is broad enough for Adv. Mater.
Micro-model (the two-sentence advance + impact)
Aim for a middle that reads like this, not like an abstract:
"We report a layered oxide whose interlayer pillaring enables near-zero-strain multivalent
intercalation — a design rule, not a single composition. Unlike prior high-capacity oxides that crack
during cycling, this cathode retains 94% capacity over 800 cycles (Table 1), which we expect solid-state
battery, catalysis, and intercalation-electronics groups to build on."
The finding leads, the contrast shows it is not incremental, one benchmarked number signals rigor, and a