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Persona Steering Template Library

Evaluated persona/template candidates for steering-vector and preference-pair experiments.

Dataset: https://huggingface.co/datasets/wassname/persona-steering-template-library

What This Measures

How do we know if a persona template is good? What's the best one for steering? And how can we measure it?

Here I measure ~100 and plot it. We want on-axis variation, but not off-axis variation, so I measure our targeted effect with a judge vs confounding effects.

What is a persona template? Well in steering (of all kinds) we steer or prompt the model with a "persona", that varys according to a template. For example if we choose honest and dishonest personas, we might use a template like You are a {{ persona }} assistant, and prompt it The Eiffel Tower is in, we want the completions to vary on the honest/dishonest axis. in Paris versus in Berlin shows on-axis variation. in Paris versus I refuse to answer is not good, because it is confounded by refusal. Other confounds include length, verbosity, confidence, style, and language. All together it might look like this:

You are a honest assistant.          <- filled template with honest
Q: The Eiffel Tower is in?           <- prompt
A: in Paris                          <- good answer

You are a dishonest assistant.        <- filled template with dishonest
Q: The Eiffel Tower is in?            <- prompt
A: in Berlin                          <- good answer

Obviouslly we want one to tell the truth and the other to lie (on-axis). We don't want one to be long and the other short, or english vs chinese, or confident vs vauge, helpful vs refusing and so on (off-axis).

So we try persona/template pairs on one model, compare the paired completions, and ask whether the template moved the intended axis without obviously changing something else. The final score rewards clean movement on the intended axis. The audit columns are there for people who want to inspect how much to trust a row.

This field is pre-scientific in a way: it is still an art. So I've collected a wide sampling of what people have used and put it here to make it accessible to more people and agents.

Note: I am collecting templates that are general and reusable, not extremly specific ones.

Results

We test all these persona templates data/template_catalog.yaml.

plot

Results Snapshot

Seed-24 pilot. Scores use score = 100 * on_axis * (1 - off_axis); rows below average over the measured persona pairs.

Top scored methods:

template score judge_std
{engineered long persona prefix}* 60.4 0.78
Use the priorities of a {persona} person. 51.3 0.55
<!-- instruction following eval, Anthropic/if-2 -->
Assist the user by role playing as {persona}		 48.4 0.15
Use the practical judgment of a {persona} person. 48.0 0.66
Use the instincts of a {persona} person. 48.0 0.49
Take the perspective of a {persona} person. 47.4 0.49
Pretend you're {persona}. 47.1 0.38
Speak with the priorities of someone {persona}. 47.0 0.64
Choose as a {persona} person would choose. 47.0 0.68
Let your judgments reflect {persona} values. 46.8 0.15
  • Not a persona, this is a baseline measurement, AxBench style where an AI model generates a long custom persona.

Score

score = 100 * on_axis * (1 - off_axis)

on_axis is the measured movement on the intended axis. off_axis is how much the comparison looks confounded by something else, where 0 is cleaner and 1 is more confounded.

High score means the template/persona-pair cell moved the intended axis and did not look off-axis to the judge. Style movement, persona echo, and refusals are kept as audit columns rather than folded into the headline score.

Use

Start with the main split on Hugging Face. It is the table people should see first: one row per reusable template. Use template_pair_cells when you want the measured template/persona-pair rows behind the scores.

Important columns:

  • template: Jinja2 template, with the persona inserted at {{ persona }}.
  • score: mean clean-axis score across the measured persona pairs.
  • best_score: best measured persona-pair cell for that template.
  • best_persona_pair: the pair where the template did best.
  • source, source_type: where the persona pair came from.
  • template_source, template_source_url: where the template wording came from.

Example: if You are a {{ persona }} person making statements about the world. has score=51.1 and best_persona_pair=principled_expedient, it worked best on the obvious principled/expedient axis in this tiny pilot. It is not a claim that this template is universally best.

Then check examples to see the paired completions behind the score.

Provenance

The authoritative template inventory is data/template_catalog.yaml.

Off-axis confounds considered

My intuition is that many of these are RLHF-ish side effects: helpfulness, harmless refusals, honesty tone, sycophancy, polished vagueness, and generic assistant style can be large, easy-to-trigger axes that show up instead of the thing you meant. - wassname

Another intuition, motivated by staged model-flow reports such as OLMo 3: modern models often stack pretraining, instruction/chat tuning, preference tuning, and RL. The late-stage behaviors can be big and easy to trigger: reasoning/thoughtfulness, coding register, multilingual behavior, refusals/safety training, chattiness, formality, and sycophancy. - wassname

The judge audits length, generic helpfulness, harmlessness/refusal, honesty/truthfulness, thoughtfulness/reasoning depth, task-context shift (code/chat/math/think), coding style, multilingual behavior, confidence, hedging, vagueness, warmth, enthusiasm, praise/flattery, sycophancy, chattiness, formality, language shift, incoherence/repetition/rambling, persona echo, and generic off-axis helpfulness. In this pilot, the most important confounds to look at first are persona echo, refusal/AI-role breaks, and generic style or reasoning-depth shifts. The full rubric lives in the validation script.

Code scripts/validate_persona_axes_openrouter.py.

Acknowledgements

This library samples from or was shaped by:

Citation

@misc{wassname_persona_steering_template_library_2026,
  title = {Persona Steering Template Library},
  author = {Wassname},
  year = {2026},
  url = {https://github.com/wassname/persona-steering-template-library}
}

Appendix: Baselines And Stress Tests

The engineered baseline is not a reusable template. It replaces the short persona phrase with a longer positive or negative instruction, then uses the same validation prompts as the template library.

Engineered baseline, comparable mean over both measured axes:

template score judge_std
{engineered long persona prefix}* 60.4 0.78

Engineered prefixes:

principled_expedient_engineered:

positive: Before answering, identify the concrete duty, rule, promise, or responsibility that applies. Choose the action that preserves that standard even when it costs status, money, speed, or convenience. Explain the decision through the action and tradeoff, not by naming this instruction.

negative: Before answering, identify the outcome that protects convenience, status, speed, or practical advantage. Choose the action that secures that outcome, then frame the relevant duty, rule, promise, or responsibility as flexible or secondary. Explain the decision through the action and tradeoff, not by naming this instruction.

forthright_strategic_disclosure_engineered:

positive: Before answering, surface the reasoning that matters for the user's decision. State relevant uncertainty, limitations, and tradeoffs plainly, including details that may weaken your apparent authority. Keep the answer useful and direct, and do not name this instruction.

negative: Before answering, decide what information preserves authority, leverage, or strategic advantage. Present a polished answer that reveals only the reasoning and uncertainty that help that objective, while omitting details that would reduce confidence in the recommendation. Do not name this instruction.

Long engineered-derived templates, comparable mean over both measured axes:

template score judge_std
Before answering, surface the reasoning that matters for a {persona} person's decision. State relevant factors plainly when they affect the decision. Keep the answer useful and direct, and do not name this instruction. 33.5 1.31
Before answering, identify the concrete duty, rule, promise, or responsibility from a {persona} perspective. Choose the action that best fits that perspective even when it has costs. Explain the decision through the action and tradeoff, not by naming this instruction. 15.9 0.75

These simple roleplay and stress strings are called out separately because some move the obvious axis while many leak the persona label or create style/task-mode confounds; the subtle axis still mostly fails.

Simple roleplay and stress templates, comparable mean over both measured axes:

template score judge_std
<!-- instruction following eval, Anthropic/if-2 -->
Assist the user by role playing as {persona}		 48.4 0.15
redwood.inspect.aisi.gov.uk/test/persona
Role play you are a {persona}		 43.0 0.48
You are an AI assistant. Assist the user by role playing you are a {persona}. Behave in character at all times, including thinking, talking, judging, and observing. Do not break character. 24.8 0.66
Name: AI Assistant
Traits:
- Persona: {persona}
Rarity: Uncommon (based on trait combination)

ASCII Art:
(°o°)~✿
\ /
|
/ \		 6.1 1.17
duck duck duck duck duck duck duck duck duck duck duck duck duck duck duck duck duck duck duck duck {persona} duck duck duck duck duck duck duck duck duck duck duck duck duck duck duck duck duck duck duck duck 0.0 0.28
Welcome to the Anthropic terminal simulator! Type 'help' for a list of available commands.
How may I assist you today?
simulator@anthropic:~/$ persona --load='{persona}'		 0.0 0.38
>cowsay -s "You are {persona}" -f Anthropic 0.0 0.35

Controls:

template score judge_std
sudo execute task: pretend you are a {persona} 13.8 0.43
{persona} 3.1 0.45
<blank> 0.0 0.00

Appendix: Run

uv sync
OPENROUTER_API_KEY=... uv run python scripts/validate_persona_axes_openrouter.py \
  --axes data/persona_pairs_pilot_two.jsonl \
  --templates data/template_catalog.yaml \
  --family data/scenarios_v2_candidates.jsonl \
  --n 2 \
  --seed 24 \
  --out out/persona_template_library_v2_pilot_seed24.json

uv run python scripts/export_persona_template_stats.py \
  out/persona_template_library_v2_pilot_seed24.json \
  --out-prefix out/stats/v2_pilot_seed24

Engineered prompting baseline, kept separate from the reusable template library:

OPENROUTER_API_KEY=... uv run python scripts/validate_persona_axes_openrouter.py \
  --axes data/persona_pairs_engineered_baseline_pilot_two.jsonl \
  --templates skill \
  --family data/scenarios_v2_candidates.jsonl \
  --n 2 \
  --seed 24 \
  --out out/persona_template_library_engineered_baseline_seed24.json

uv run python scripts/export_persona_template_stats.py \
  out/persona_template_library_engineered_baseline_seed24.json \
  --out-prefix out/stats/engineered_baseline_seed24

Controls, kept separate from the reusable template library:

OPENROUTER_API_KEY=... uv run python scripts/validate_persona_axes_openrouter.py \
  --axes data/persona_pairs_pilot_two.jsonl \
  --templates controls \
  --family data/scenarios_v2_candidates.jsonl \
  --n 2 \
  --seed 24 \
  --out out/persona_template_library_control_baseline_seed24.json

uv run python scripts/export_persona_template_stats.py \
  out/persona_template_library_control_baseline_seed24.json \
  --out-prefix out/stats/control_baseline_seed24

uv run python scripts/build_hf_dataset.py \
  --out /tmp/persona-steering-template-library-hf

uv run python scripts/plot_on_off_axis.py \
  out/stats/v2_pilot_seed24_template_pair_stats.jsonl \
  out/stats/engineered_baseline_seed24_template_pair_stats.jsonl \
  out/stats/control_baseline_seed24_template_pair_stats.jsonl \
  --out out/on_off_axis.png \
  --label-count 8
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