opencode/packages/session-ui/src/components/basic-tool.css

[data-component="tool-trigger"] {
  content-visibility: auto;
  width: 100%;
  display: flex;
  align-items: center;
  align-self: stretch;
  gap: 0px;
  justify-content: flex-start;

  &[data-clickable="true"] {
    cursor: pointer;
  }

  [data-slot="basic-tool-tool-trigger-content"] {
    flex: 0 1 auto;
    width: auto;
    max-width: calc(100% - 24px);
    min-width: 0;
    display: flex;
    align-items: center;
    align-self: stretch;
    gap: 8px;
  }

  [data-slot="basic-tool-tool-indicator"] {
    width: 16px;
    height: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;

    [data-component="spinner"] {
      width: 16px;
      height: 16px;
    }
  }

  [data-slot="basic-tool-tool-spinner"] {
    width: 16px;
    height: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--v2-text-text-faint);

    [data-component="spinner"] {
      width: 16px;
      height: 16px;
    }
  }

  [data-slot="icon-svg"] {
    flex-shrink: 0;
  }

  [data-slot="basic-tool-tool-info"] {
    flex: 0 1 auto;
    min-width: 0;
    max-width: 100%;
    font-size: 14px;
  }

  [data-slot="basic-tool-tool-info-structured"] {
    flex: 0 1 auto;
    width: auto;
    max-width: 100%;
    min-width: 0;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    justify-content: flex-start;
  }

  [data-slot="basic-tool-tool-info-main"] {
    display: flex;
    align-items: baseline;
    gap: 8px;
    min-width: 0;
    overflow: hidden;
  }

  [data-slot="basic-tool-tool-title"] {
    flex-shrink: 0;
    font-family: var(--font-family-sans);
    font-size: 14px;
    font-style: normal;
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-large);
    letter-spacing: var(--letter-spacing-normal);
    color: var(--v2-text-text-base);

    &.capitalize {
      text-transform: capitalize;
    }

    &.agent-title {
      color: var(--v2-text-text-base);
      font-weight: var(--font-weight-medium);
    }
  }

  [data-slot="basic-tool-tool-subtitle"] {
    flex-shrink: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-family: var(--font-family-sans);
    font-variant-numeric: tabular-nums;
    font-size: 14px;
    font-style: normal;
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-large);
    letter-spacing: var(--letter-spacing-normal);
    color: var(--v2-text-text-muted);

    &.clickable {
      cursor: pointer;
      text-decoration: underline;
      transition: color 0.15s ease;

      &:hover {
        color: var(--v2-text-text-muted);
      }
    }

    &.subagent-link {
      color: var(--text-interactive-base);
      text-decoration: none;
      text-underline-offset: 2px;
      font-weight: var(--font-weight-regular);

      &:hover {
        color: var(--text-interactive-base);
        text-decoration: underline;
      }

      &:active {
        color: var(--text-interactive-base);
      }

      &:visited {
        color: var(--text-interactive-base);
      }
    }
  }

  [data-slot="basic-tool-tool-arg"] {
    flex-shrink: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-family: var(--font-family-sans);
    font-variant-numeric: tabular-nums;
    font-size: 14px;
    font-style: normal;
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-large);
    letter-spacing: var(--letter-spacing-normal);
    color: var(--v2-text-text-muted);
  }

  [data-slot="basic-tool-tool-action"] {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
  }
}

[data-component="task-tool-card"] {
  width: 100%;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 6px;
  border: 0.5px solid var(--border-weak-base, rgba(255, 255, 255, 0.08));
  background: color-mix(in srgb, var(--background-base) 92%, transparent);
  transition:
    border-color 0.15s ease,
    background-color 0.15s ease,
    color 0.15s ease;

  [data-component="task-tool-surface"] {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    flex: 1 1 auto;
  }

  [data-slot="basic-tool-tool-info-structured"] {
    flex: 1 1 auto;
    min-width: 0;
  }

  [data-slot="basic-tool-tool-info-main"] {
    flex: 1 1 auto;
    min-width: 0;
    align-items: center;
  }

  [data-component="task-tool-spinner"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;

    [data-component="spinner"] {
      width: 16px;
      height: 16px;
    }
  }

  [data-component="task-tool-action"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--v2-text-text-faint);
    margin-left: auto;
    opacity: 0;
    transition:
      opacity 0.15s ease,
      color 0.15s ease;
  }

  [data-component="task-tool-title"] {
    flex-shrink: 0;
    font-family: var(--font-family-sans);
    font-size: 14px;
    font-style: normal;
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-large);
    letter-spacing: var(--letter-spacing-normal);
    text-transform: capitalize;
    color: var(--task-agent-legacy-color, var(--text-strong));
  }

  [data-slot="basic-tool-tool-subtitle"] {
    color: var(--v2-text-text-base);
  }

  &:hover,
  &:focus-visible {
    border-color: var(--border-weak-base, rgba(255, 255, 255, 0.08));
    background: color-mix(in srgb, var(--background-stronger) 88%, transparent);

    [data-component="task-tool-action"] {
      opacity: 1;
    }
  }
}

body[data-new-layout] {
  [data-component="task-tool-card"] {
    gap: 8px;
    padding: 0;
    border-radius: 0;
    border: 0;
    border-color: transparent;
    background: transparent;
    box-shadow: none;

    [data-component="task-tool-surface"] {
      padding: 8px 12px;
      border-radius: 8px;
      background: var(--v2-background-bg-layer-01);
    }

    [data-component="task-tool-spinner"],
    [data-component="task-tool-icon"] {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;

      [data-component="icon"] {
        color: var(--task-agent-color, var(--v2-icon-icon-base));
      }
    }

    [data-component="task-tool-title"] {
      height: 20px;
      font-family: var(--v2-font-family-sans, "Inter", sans-serif);
      font-style: normal;
      font-weight: 530;
      font-size: 13px;
      line-height: 20px;
      letter-spacing: -0.04px;
      color: var(--v2-text-text-base);
      flex: none;
      flex-grow: 0;
    }

    [data-slot="basic-tool-tool-subtitle"] {
      font-family: var(--v2-font-family-sans, "Inter", sans-serif);
      font-style: normal;
      font-weight: 440;
      font-size: 13px;
      line-height: 20px;
      letter-spacing: -0.04px;
      color: var(--v2-text-text-base);
      font-variation-settings: "slnt" 0;
      flex: none;
      flex-grow: 0;
    }

    [data-component="session-progress-indicator-v2"] {
      color: var(--task-agent-color, light-dark(var(--v2-text-text-base), #ffffff));
    }

    &:hover,
    &:focus-visible {
      border-color: transparent;
      background: transparent;

      [data-component="task-tool-surface"] {
        background: var(--v2-background-bg-layer-01);
      }
    }
  }
}

body:not([data-new-layout]) {
  [data-component="tool-trigger"] {
    [data-slot="basic-tool-tool-spinner"] {
      color: var(--text-weak);
    }

    [data-slot="basic-tool-tool-title"],
    [data-slot="basic-tool-tool-title"].agent-title {
      color: var(--text-strong);
    }

    [data-slot="basic-tool-tool-subtitle"],
    [data-slot="basic-tool-tool-subtitle"].clickable:hover,
    [data-slot="basic-tool-tool-arg"] {
      color: var(--text-base);
    }
  }

  [data-component="task-tool-card"] {
    border-width: 1px;

    [data-component="task-tool-action"] {
      color: var(--icon-weak);
    }

    [data-slot="basic-tool-tool-subtitle"] {
      color: var(--text-strong);
    }
  }
}