letters SKILL.md skillA

letters from kahl-d/jaja is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add kahl-d/jaja/letters@git:20261023.9f9eaf2

Pins git:20261023.9f9eaf2 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
kahl-d/jaja
Path
.agents/skills/letters/SKILL.md
Versions recorded
1
Latest version
git:20261023.9f9eaf2, committed Oct 23, 2026
Size
5,270 bytes
Repository stars
6
License
MIT

Use when an application asks for a cover letter, a 'why are you interested in <company>' answer or an 'anything else you'd like to share' field: the owner's own ideas in plain words, real work as the proof, the company reverse-engineered first. Drafts only, for the owner's edit.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Letters and open questions

Today is !`date +%F`. Arguments: `$ARGUMENTS` = `<slug> [cover|why|else|all]`.

Voice and style: follow the user's style config (`<data>/config/style.yaml`, keys `style.*`, including
`style.letters.*`) and voice guide (`<data>/profile/VOICE.md`) if present; these are filled in by the user, not shipped.

The principle: a letter presents the owner's ideas and how the owner thinks about the work, then uses real experience as
the proof. It is not a list of facts the resume already holds. For "why us", reverse-engineer the whole organization
(what are they creating, why, what might the founders believe) and answer what the reader is really asking through the
owner's own view, never in the company's own words. For "anything else", be professionally informal and specific.
Always present real experience.

## Inputs (read all before writing)
- The Role Package `research/targets/<slug>.md`: the company signal, the Reader model (wants in the reader's words, fears,
  proof they trust) and the angle. If the Reader model is missing, write it first (`/role-package`), because "why us"
  starts from the reverse-engineered company.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add kahl-d/jaja/letters@sha256:f3ab9199b468da91

The line at the top of this page pins the label git:20261023.9f9eaf2, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_p5brxkqst2nhbbry.svg)](https://markdownregistry.com/a/art_p5brxkqst2nhbbry)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Oct 23, 2026.

versioncommittedcommitsizeaudit
git:20261023.9f9eaf2 latest2026-10-23 9f9eaf2 5,270 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5270 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

kahl-d/jaja · 6 stars · license MIT · pushed 2026-10-23 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_p5brxkqst2nhbbry
GET https://markdownregistry.com/api/v1/resolve?ref=kahl-d/jaja/letters
GET https://markdownregistry.com/api/v1/blob/f3ab9199b468da91214ce88665add2f81d135a3b3c9fd7d38ffb303d20949cca

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

More from kahl-d/jaja

add-experience SKILL.md skill
kahl-d/jaja · .agents/skills/add-experience/SKILL.md · Use in the owner's resume session, whenever the owner describes new work (a job, role, project, award, talk, or a date…
git:20261023.580eef2 · audit A · 6 stars
apply-assist SKILL.md skill
kahl-d/jaja · .agents/skills/apply-assist/SKILL.md · Use when an application row is ready (the base, or a variant that won): build and lint its apply pack, fill the…
git:20261023.580eef2 · audit A · 6 stars
apply-sprint SKILL.md skill
kahl-d/jaja · .agents/skills/apply-sprint/SKILL.md · Use when the owner approves a big push (for example 20 applications in one sprint) that is too large for one session…
git:20261023.580eef2 · audit A · 6 stars
ats-check SKILL.md skill
kahl-d/jaja · .agents/skills/ats-check/SKILL.md · Use after every resume PDF render, before the editorial verdict is signed, when a vendor parse (Workday, Greenhouse…
git:20261023.580eef2 · audit A · 6 stars
base-compare SKILL.md skill
kahl-d/jaja · .agents/skills/base-compare/SKILL.md · Use after a variant renders and before anyone reads it: judges every changed bullet and order blind against the current…
git:20261023.9f9eaf2 · audit A · 6 stars
browser-job-search SKILL.md skill
kahl-d/jaja · .agents/skills/browser-job-search/SKILL.md · Use only when the owner is present and wants to search job boards in the owner's browser (LinkedIn, Wellfound…
git:20261023.580eef2 · audit A · 6 stars
build-resume-base SKILL.md skill
kahl-d/jaja · .agents/skills/build-resume-base/SKILL.md · Use only when the owner orders a change to the one general base resume (resumes/bases/general/: new work, a ruling) or…
git:20261023.580eef2 · audit A · 6 stars
build-resume-pdf SKILL.md skill
kahl-d/jaja · .agents/skills/build-resume-pdf/SKILL.md · Use when a resume YAML (a variant of the general base, or a base change the owner ordered) needs its PDFs (and a DOCX…
git:20261023.580eef2 · audit A · 6 stars
calendar-hold SKILL.md skill
kahl-d/jaja · .agents/skills/calendar-hold/SKILL.md · Use when mail-triage finds an interview invite or scheduling email with proposed times, or the owner confirms a slot in…
git:20261023.580eef2 · audit A · 6 stars
connector-search SKILL.md skill
kahl-d/jaja · .agents/skills/connector-search/SKILL.md · Use in a session where the owner has added the Indeed, ZipRecruiter or Dice connector in Claude: run the shared alert…
git:20261023.580eef2 · audit A · 6 stars
corpus-audit SKILL.md skill
kahl-d/jaja · .agents/skills/corpus-audit/SKILL.md · Use weekly (before the weekly review), the day the owner rules on profile conflicts, and after an add-experience batch…
git:20261023.580eef2 · audit A · 6 stars
daily-job-plan SKILL.md skill
kahl-d/jaja · .agents/skills/daily-job-plan/SKILL.md · Use each morning (js-morning-brief, or when the owner starts the Recruiter) and evening (js-evening-review), or when…
git:20261023.580eef2 · audit A · 6 stars

Every file in kahl-d/jaja

Browse by kind, by grade A, or by owner.