Google AIprompt engineering

System Instructions

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/ Styles inlined from /site-assets/css/style.css /

body[theme="googledevai-theme"] {

--devsite-background-0: var(--devsite-background-1);

--devsite-button-border: 1px solid #747775;

--devsite-button-border-radius: 20rem;

--devsite-button-font: 500 14px/36px 'Google Sans Text', Roboto, sans-serif;

--devsite-code-font-family: 'Google Sans Mono', Roboto Mono, monospace;

--devsite-primary-font-family: 'Google Sans Text', Roboto, sans-serif;

--devsite-table-heading-font: 500 14px/20px 'Google Sans Text', Roboto, sans-serif;

--googledevai-border-color: #c4c7c5;

--googledevai-blue-light: #d7e6ff;

--googledevai-blue-dark: #2e64de;

--googledevai-cyan-light: #c7e4ff;

--googledevai-cyan-dark: #3c8fe3;

--googledevai-purple-light: #dce2ff;

--googledevai-purple-dark: #987be9;

--googledevai-purple: #ac87eb;

--googledevai-red: #ee4d5d;

--googledevai-secondary-text: #001d35;

--googledevai-button-gradient-light: linear-gradient(90deg, var(--googledevai-blue-light), var(--googledevai-cyan-light), var(--googledevai-purple-light));

--googledevai-button-gradient-dark: linear-gradient(90deg, var(--googledevai-blue), var(--googledevai-cyan), var(--googledevai-purple));

}

body[theme="googledevai-theme"]:not([type="reference"]){

--googledevai-page-width: 1100px;

}

body[layout=docs][theme="googledevai-theme"]:not([type="reference"]) .devsite-main-content,

body[layout=docs][theme="googledevai-theme"]:not([type="reference"]) .devsite-main-content[has-book-nav][has-sidebar] {

grid-template-columns: minmax(269px, 1fr) minmax(752px, var(--googledevai-page-width)) minmax(160px, 1fr);

grid-gap: 3rem;

}

body[layout=docs][theme="googledevai-theme"] devsite-content {

max-width: var(--googledevai-page-width);

}

body[layout=docs][theme="googledevai-theme"] .devsite-article {

box-shadow: unset;

}

body[theme="googledevai-theme"] {

--googledevai-header-gradient: linear-gradient(90deg, var(--googledevai-blue) 50%, var(--googledevai-cyan), var(--googledevai-purple), var(--googledevai-red));

}

body[theme="googledevai-theme"].color-scheme--dark {

--googledevai-header-gradient: linear-gradient(90deg, var(--googledevai-blue) 75%, var(--googledevai-cyan), var(--googledevai-purple));

--googledevai-border-color: #444746;

}

/ Ensure that full-bleed pages get the full width. /

body[theme="googledevai-theme"][layout="full"] .devsite-main-content {

max-width: none;

padding: 0;

}

/* And ensure that any site banners/ACL warnings/etc don't get hidden on

full-bleed pages. /

body[theme="googledevai-theme"][layout="full"] .devsite-banner {

margin: 0;

}

tab:has(> a.hidden-tab) {

display: none;

}

body[theme="googledevai-theme"] devsite-toc > .devsite-nav-list {

border-inline-start: unset;

}

/ Banner notice /

[layout=docs] .devsite-banner:first-of-type {

background: var(--googledevai-cyan-light);

border-radius: 10px;

color: var(--googledevai-secondary-text);

margin: -2.5rem -0.25rem 2.5rem;

display: flex;

}

/ Banner notice smaller screens /

@media (max-width: 840px) {

[layout=docs] .devsite-banner:first-of-type {

margin: -0.25rem -0.25rem 2.5rem;

} }

/ Asides /

.devsite-article-body>aside:not([class*=attempt]) {

border-radius: 2px;

}

/ Tables /

table:not(.tfo-notebook-buttons) {

border: 1px solid var(--googledevai-border-color);

border-collapse: unset;

border-radius: 9px;

margin: auto;

width: 100%;

}

.gemini-api-model-table tr:not(:last-child) td:not(:first-child),

.gemini-api-model-table tr:not(:last-child) th,

th,

table:not(.gemini-api-model-table):not(.tfo-notebook-buttons) tr:not(:last-child) td {

border-bottom: 1px solid var(--googledevai-border-color);

}

th,

td {

background: transparent;

padding: 1rem;

}

/ Notebooks /

devsite-code .tfo-notebook-code-cell-output {

max-height: 300px;

overflow: auto;

background: rgba(237, 247, 255, 1); / blue bg to distinguish from input code cells /

}

devsite-code .tfo-notebook-code-cell-output + .devsite-code-buttons-container button {

background: rgba(237, 247, 255, .7); / blue bg to distinguish from input code cells /

}

.color-scheme--dark devsite-code .tfo-notebook-code-cell-output {

background: rgba(var(--devsite-background-2), 1);

}

.color-scheme--dark devsite-code .tfo-notebook-code-cell-output + .devsite-code-buttons-container button {

background: rgba(var(--devsite-background-2), .7);

}

devsite-code[dark-code] .tfo-notebook-code-cell-output {

background: rgba(64, 78, 103, 1); / medium slate /

}

devsite-code[dark-code] .tfo-notebook-code-cell-output + .devsite-code-buttons-container button {

background: rgba(64, 78, 103, .7); / medium slate /

}

.devsite-article-body>devsite-code {

--devsite-code-buttons-container-right: 0;

--devsite-code-margin: 0 0;

--devsite-code-padding-block: 14px;

border-radius: 8px;

}

.devsite-article-body>.beta:not([class*=attempt]),

.devsite-article-body>.caution:not([class*=attempt]),

.devsite-article-body>.deprecated:not([class*=attempt]),

.devsite-article-body>.dogfood:not([class*=attempt]),

.devsite-article-body>.experimental:not([class*=attempt]),

.devsite-article-body>.key-point:not([class*=attempt]),

.devsite-article-body>.key-term:not([class*=attempt]),

.devsite-article-body>.note:not([class*=attempt]),

.devsite-article-body>.objective:not([class*=attempt]),

.devsite-article-body>.preview:not([class*=attempt]),

.devsite-article-body>.special:not([class*=attempt]),

.devsite-article-body>.success:not([class*=attempt]),

.devsite-article-body>.tip:not([class*=attempt]),

.devsite-article-body>.warning:not([class*=attempt]),

.devsite-article-body>aside:not([class*=attempt]) {

--devsite-notice-margin: 0 0;

border-radius: 8px;

}

/ override default table styles for notebook buttons /

.devsite-table-wrapper .tfo-notebook-buttons {

display: block;

width: auto;

}

.tfo-notebook-buttons td {

display: inline-block;

padding: 0 16px 16px 0;

}

/ from DevSite's buttons.scss /

.tfo-notebook-buttons a,

.tfo-notebook-buttons :link,

.tfo-notebook-buttons :visited {

-moz-appearance: none;

-webkit-appearance: none;

-webkit-box-align: center;

-ms-flex-align: center;

align-items: center;

align-self: var(--devsite-button-align-self);

background: var(--devsite-button-background, var(--devsite-background-1));

border: var(--devsite-button-border, 0);

border-radius: var(--devsite-button-border-radius, 2px);

box-sizing: border-box;

color: var(--devsite-button-color);

cursor: pointer;

display: -webkit-box;

display: -ms-flexbox;

display: flex;

font: var(--devsite-button-font, 500 14px/36px var(--devsite-primary-font-family));

height: var(--devsite-button-height, 36px);

letter-spacing: var(--devsite-button-letter-spacing, 0);

line-height: var(--devsite-button-line-height, 36px);

margin: var(--devsite-button-margin, 0);

margin-inline-end: var(--devsite-button-margin-x-end);

max-width: var(--devsite-button-max-width, none);

min-width: 36px;

outline: 0;

overflow: hidden;

padding: var(--devsite-button-with-icon-padding, 0 16px);

text-align: center;

text-decoration: none;

text-overflow: ellipsis;

text-transform: var(--devsite-button-text-transform, uppercase);

transition:

background-color .2s,

border .2s;

vertical-align: middle;

white-space: nowrap;

width: var(--devsite-button-width, auto);

}

.tfo-notebook-buttons a:hover,

.tfo-notebook-buttons a:focus {

background: var(--devsite-button-background-hover);

border: var(--devsite-button-border-hover, 0);

color: var(--devsite-button-color-hover, var(--devsite-button-color));

text-decoration: var(--devsite-button-text-decoration-hover, none);

}

.tfo-notebook-buttons a:active {

background: var(--devsite-button-background-active);

border: var(--devsite-button-border-active, 0);

transform: var(--devsite-button-transform-active, none);

}

.tfo-notebook-buttons tr {

background: 0;

border: 0;

}

/* on rendered notebook page,

remove link to webpage since we're already here */

.tfo-notebook-buttons:not(.tfo-api) td:first-child {

display: none;

}

.tfo-notebook-buttons td > a > img {

margin: 0 8px 0 -4px;

height: 20px;

}

[appearance='dark'] .tfo-notebook-buttons td > a > img {

filter: invert(1);

}

@media (prefers-color-scheme: dark) {

[appearance='device'] .tfo-notebook-buttons td > a > img {

filter: invert(1);

}

.sub-heading {

background-color: #333;

color: #bdbdbd;

} }

[appearance='dark'] .sub-heading {

background-color: #333;

color: #bdbdbd;

}

.sub-heading {

background-color: #f2f2f2;

color: #5f6368;

}

@media screen and (max-width: 600px) {

.tfo-notebook-buttons td {

display: block;

} }

devsite-nav-buttons button {

margin-left: 0;

margin-top: 5px;

}

code {

border-radius: 6px

}

devsite-book-nav .devsite-nav-list>.devsite-nav-heading:not(.devsite-nav-divider) {

border-top: 0;

padding-bottom: 0.9rem;

font-size: 1rem;

}

/*

* TODO(b/439059414): Remove this workaround in favor of a project-level

* body_class when possible.

*/

.ais-theme-marker {

display: none;

}

/*

* Gemini API body class.

* https://source.corp.google.com/piper///depot/google3/third_party/devsite/googledevai/en/gemini-api/_project.yaml;l=7

*/

.gemini-api devsite-thumb-rating[position="header"],

.gemini-api devsite-feedback[position="header"] {

/ Hide the thumb rating and feedback widgets at the top of the page. /

display: none;

}

/*

* Shaded table styles look like a .pricing-table but are more flexible around

* content sizes in each column.

*/

.shaded-table {

border-collapse: separate;

border-spacing: 0;

border-radius: 8px;

overflow: hidden;

}

.shaded-table th {

background-color: #f2f2f2;

text-align: left;

padding: 8px;

}

/* These should use theme colours for light too, so we don't

need an override. /

.color-scheme--dark .shaded-table th {

background-color: var(--devsite-ref-palette--grey800);

}

.shaded-table td {

padding: 8px;

}

.sh

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