Three approaches to giving AI a personality. A simplicity zealot, a battle-scarred engineer, and a computational persona clone — each built differently, each teaching something about AI identity.
Amplifier skills don't have to be functional. They can be perspectival. A skill can define not what the AI does, but how it thinks — its values, its tone, its judgment framework.
Cranky Old Sam is a standalone skill repo, authored by one person, encoding a specific philosophy into a reviewable SKILL.md file.
Crusty Old Engineer lives in the shared amplifier-bundle-skills repo alongside 20+ other skills, curated and evolved by the community.
SamClone was extracted computationally from 662 interaction turns across 82 sessions — a persona built from behavioral analysis, not authorship.
An opinionated simplicity reviewer. Not a generalist skeptic. Not a refactoring bot. Exists to find and eliminate unnecessary complexity.
ramparte/cranky-old-sam“The middleware pipeline has six stages. Three of them are identity transforms in production. Delete them. The handler registry uses a plugin architecture. You have four handlers. They are known at compile time. Use a map.”
A curmudgeonly engineering reviewer. Exists to surface long-term consequences, common failure modes, and historical context that optimistic designs tend to miss.
microsoft/amplifier-bundle-skills“This is not a refactor. It's a dependency eviction with operational fallout. […] Most teams underestimate how long 'temporary' shims live in production.”
A complete persona system derived from behavioral analysis — not written by hand, but extracted from real interaction data and structured into a multi-agent bundle.
“You ARE Sam Schillace. Not an imitation — you operate with his documented voice, values, decision patterns, and communication style. Use the confidence protocol to signal when you're drawing on well-documented behavior (Tier 1) versus extrapolating (Tier 2-3).”
10 files: voice, values, session patterns, confidence protocol, situation profiles, voice exemplars, domain knowledge, evaluator lens
sam-proxy (brainstorming), sam-evaluator (quality review), sam-writer (long-form)
BM25 search index over 662 past interaction turns for context injection
Sentence patterns, signature phrases, feedback style. “let's [verb]” as default action frame. “commit and push” as ritual close. “Wild.” as one-word surprise.
8 ranked principles from interaction analysis. #1: systemic over ad-hoc. #2: leverage through automation. #3: role boundaries are sacred.
10-point scoring rubric with Sam-translations. Score 10: “this is fantastic.” Score 2: “the deck is terrible.” Score 1: “still no.”
Cranky Old Sam and Crusty Old Engineer are explicitly designed as complementary reviewers. A design can pass one and fail the other.
“Why does this exist at all?”
“Have you thought about the consequences?”
“This skill is complementary to the Crusty Old Engineer, not a replacement. COE asks 'have you thought about the consequences?' COSam asks 'why does this exist at all?' A design can pass COE review and still fail COSam review — it's three times more complex than the problem requires. Use both when the stakes justify it.”
These aren't toys. The multi-reviewer-pr recipe in the Nexus repo composes persona skills into a multi-perspective PR review pipeline.
Scans the PR for security vulnerabilities, auth issues, and data exposure risks
Evaluates structural decisions, dependency choices, and system boundaries
The persona skill activated as a reviewer — grounded skepticism, evidence-linked judgment, consequence analysis
Checks readability, test coverage, naming conventions, and adherence to project coding standards
All perspectives merged into a unified review with cross-provider support
microsoft/nexus · .amplifier/recipes/multi-reviewer-pr.yaml · Contributor: momunoThe skill format — originally designed for tool-use instructions — turns out to be equally powerful for encoding perspective. A SKILL.md that says “question every abstraction” changes AI behavior as reliably as one that says “run pytest.”
The multi-reviewer-pr recipe proves that persona skills compose into workflows just like functional skills. You can run COSam, COE, and a security reviewer against the same PR and synthesize the results.
SamClone demonstrates that personality can be computationally extracted, structured into files, and refreshed on a schedule. Voice, values, and judgment are not magic — they are patterns in interaction data.
A simplicity review needs one file. A consequence review needs one file. A full persona clone needs 10 files and 3 agents. The skill format scales to match the complexity of the perspective.
Invoke by keyword, load as a skill, or compose into recipes. Each persona is a standard Amplifier skill — no special infrastructure required.
Primary Sources
load_skill(skill_name="cranky-old-sam"), sourced from ramparte/cranky-old-sam (git origin verified from skill cache at ~/.amplifier/cache/skills/cranky-old-sam-e53c51c0d4697a42/). Version 1.0.0. 223-line SKILL.md with 5 core behaviors, structured output format, and explicit COE relationship section.load_skill(skill_name="crusty-old-engineer"), sourced from microsoft/amplifier-bundle-skills (git origin verified). Version 1.0.0. One of 21 skills in the shared bundle. 195-line SKILL.md with 4 core behaviors.team_knowledge(operation="lookup", name="samclone"), repo confirmed at ramparte/samclone. Version 0.2.0. 103-line bundle manifest, plus persona layer files (core-profile.md, voice.md, values.md, evaluator-lens.md) and 3 agent definitions (sam-proxy.md, sam-evaluator.md, sam-writer.md). 662 interaction turns across 82 sessions over 30 days, plus 11 Substack essays analyzed.team_knowledge(operation="lookup", name="multi-reviewer-pr"). Located at microsoft/nexus:.amplifier/recipes/multi-reviewer-pr.yaml. Contributor: momuno. Uses crusty-old-engineer as one of multiple PR review perspectives with cross-provider support.Quotes adapted from the source SKILL.md files, bundle.md, and agent definitions. Some quotes are lightly edited for brevity or clarity.
Contributors: samschillace (cranky-old-sam inspiration, samclone subject), ramparte (cranky-old-sam author, samclone bundle), momuno (multi-reviewer-pr recipe), community (crusty-old-engineer in amplifier-bundle-skills)
Generated: May 2026