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feat(prompts): include language in plot title format (closes #6958) #7141

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MarkusNeusinger merged 2 commits into from
May 17, 2026
Merged

feat(prompts): include language in plot title format (closes #6958) #7141

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c24f754
feat(prompts): include language in plot title format (closes #6958)
MarkusNeusinger May 17, 2026
b09288a
review: accept descriptive-prefix title variant + fix ggplot2 skeleton
MarkusNeusinger May 17, 2026
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2 changes: 1 addition & 1 deletion prompts/library/ggplot2.md
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Expand Up @@ -222,7 +222,7 @@ df <- tibble::tibble(
# --- Plot -------------------------------------------------------------------
p <- ggplot(df, aes(x, y)) +
geom_point(color = OKABE_ITO[1], size = 4, alpha = 0.7) +
labs(title = "Basic Scatter", x = "X", y = "Y") +
labs(title = "scatter-basic · R · ggplot2 · anyplot.ai", x = "X", y = "Y") +
theme_minimal(base_size = 14) +
theme(
plot.background = element_rect(fill = PAGE_BG, color = PAGE_BG),
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19 changes: 11 additions & 8 deletions prompts/plot-generator.md
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Expand Up @@ -118,7 +118,7 @@ ax.scatter(study_hours, exam_scores, alpha=0.7, s=200,
# Style
ax.set_xlabel('Study Hours per Day', fontsize=20, color=INK)
ax.set_ylabel('Exam Score (%)', fontsize=20, color=INK)
ax.set_title('scatter-basic · matplotlib · anyplot.ai',
ax.set_title('scatter-basic · Python · matplotlib · anyplot.ai',
fontsize=24, fontweight='medium', color=INK)
ax.tick_params(axis='both', labelsize=16, colors=INK_SOFT)
ax.spines['top'].set_visible(False)
Expand All @@ -138,23 +138,26 @@ plt.savefig(f'plot-{THEME}.png', dpi=300, bbox_inches='tight', facecolor=PAGE_BG
**Always use this format for the plot title:**

```
{spec-id} · {library} · anyplot.ai
{spec-id} · {Language} · {library} · anyplot.ai
```

`{Language}` is the implementation's language, capitalized: `Python` or `R`. The language token is **required** — viewers cannot tell from `ggplot2` alone whether a chart is Python or R (`plotnine` is the Python ggplot port), and going forward every rendered title must surface the runtime language.

Examples:
- `scatter-basic · matplotlib · anyplot.ai`
- `bar-grouped · seaborn · anyplot.ai`
- `heatmap-correlation · plotly · anyplot.ai`
- `scatter-basic · Python · matplotlib · anyplot.ai`
- `bar-grouped · Python · seaborn · anyplot.ai`
- `heatmap-correlation · Python · plotly · anyplot.ai`
- `biplot-pca · R · ggplot2 · anyplot.ai`

**Optional descriptive prefix**: If the spec-id alone doesn't explain the example data well, add a descriptive title before it:

```
{Descriptive Title} · {spec-id} · {library} · anyplot.ai
{Descriptive Title} · {spec-id} · {Language} · {library} · anyplot.ai
```

Examples:
- `Tesla Stock 2024 · candle-ohlc · matplotlib · anyplot.ai`
- `Sales by Region · bar-grouped · seaborn · anyplot.ai`
- `Tesla Stock 2024 · candle-ohlc · Python · matplotlib · anyplot.ai`
- `Sales by Region · bar-grouped · Python · seaborn · anyplot.ai`

Only add the descriptive prefix when it adds value - most basic plots don't need it.

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2 changes: 1 addition & 1 deletion prompts/quality-criteria.md
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Expand Up @@ -332,7 +332,7 @@ This category evaluates aesthetic sophistication beyond mere correctness. A plot

| Points | Criterion |
|--------|-----------|
| 3 | Title format `{spec-id} · {library} · anyplot.ai` AND legend labels correct |
| 3 | Title is `{spec-id} · {Language} · {library} · anyplot.ai`, optionally prefixed with `{Descriptive Title} · ` (Language ∈ {Python, R}). Legend labels correct |
| 2 | Title format correct but legend issues, or vice versa |
| 1 | Partially correct |
| 0 | Missing or wrong |
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2 changes: 1 addition & 1 deletion prompts/quality-evaluator.md
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Expand Up @@ -204,7 +204,7 @@ If found: `auto_reject: "AR-08"`, score = 0, stop evaluation.
| SC-01 | Plot Type | 5 | Correct chart type? |
| SC-02 | Required Features | 4 | All spec features present? |
| SC-03 | Data Mapping | 3 | X/Y correctly assigned? All data visible? |
| SC-04 | Title & Legend | 3 | `{spec-id} · {library} · anyplot.ai`? Legend labels correct? |
| SC-04 | Title & Legend | 3 | Title is `{spec-id} · {Language} · {library} · anyplot.ai`, optionally prefixed with `{Descriptive Title} · ` (Language ∈ {Python, R}). Legend labels correct? |

### Step 4: Data Quality (15 pts)

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2 changes: 1 addition & 1 deletion prompts/workflow-prompts/ai-quality-review.md
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Expand Up @@ -107,7 +107,7 @@ Read `prompts/quality-criteria.md` and evaluate:
| SC-01 | Plot Type | 5 | Correct chart type? |
| SC-02 | Required Features | 4 | All features from spec? |
| SC-03 | Data Mapping | 3 | X/Y correct? Axes show all data? |
| SC-04 | Title & Legend | 3 | `{spec-id} · {library} · anyplot.ai`? Legend labels match? |
| SC-04 | Title & Legend | 3 | Title is `{spec-id} · {Language} · {library} · anyplot.ai`, optionally prefixed with `{Descriptive Title} · ` (Language ∈ {Python, R}). Legend labels match? |

#### Data Quality (15 pts)
| ID | Criterion | Max | Check |
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